Landscaping
Landscaping field answers
584 reviewed answers to the landscaping questions crews and inspectors ask most. Each one is written against published standards and linked to the full field guide, so you get the answer and the proof behind it.
Most-asked landscaping questions
The headline question from our most in-depth landscaping guides, answered in full.
How do you install artificial turf?
Excavate and remove organics, build and compact an aggregate base with a fine screeded top, set the drainage and slope, then roll out and acclimate the turf, run the grain one direction, cut to fit, seam with tape and adhesive, anchor the perimeter, and brush in the infill. The base decides the result.
Full field guide: Artificial turf installationWhat is bioretention, and is it the same as a rain garden?
Bioretention is a planted depression that filters stormwater through an engineered sand-dominant soil mix and infiltrates it. A residential rain garden is the simplest form, often in native soil with no spec or underdrain. An engineered bioretention cell adds specified media, a gravel layer, an underdrain, and a permit obligation.
Full field guide: Bioretention and rain gardensWhat is electric shock drowning?
Electric shock drowning, ESD, is drowning caused when AC current leaking into the water passes through a swimmer and paralyzes the muscles, so they cannot swim. The current is often too small to feel and leaves no visible sign. It is the deadliest hazard at any powered dock, and NEC 555 ground-fault protection and bonding are the defenses.
Full field guide: Boat dock and marina constructionHow deep should a fence post be?
Set a fence post about one third of its above-grade height into the ground, and always below the local frost line, whichever is deeper. A 6 ft fence usually means a 2 to 3 ft hole, with terminal and gate posts deeper. Add gravel at the bottom and confirm the frost depth your building department uses.
Full field guide: Commercial fence and gate installHow many strings of holiday lights can you connect end to end?
It depends on the product, and the limit is on the manufacturer's tag. Low-draw LED often allows dozens of C9 strings in one run where incandescent allowed only a few. A common guide is to keep a connected run at or below about 210 watts, but the tag and the in-plug fuse rating govern, so never exceed them.
Full field guide: Commercial holiday lighting installWhat is the most common cause of deck collapse?
The most common cause is failure of the ledger connection: a ledger nailed to the house instead of bolted, or one that was never flashed, so the band joist rotted and the fasteners pulled out. Bolt the ledger with 1/2 in lags or through-bolts and flash it, or the deck pulls off the house under load.
Full field guide: Deck construction field guideHow tall does a deer fence need to be?
A deer fence is commonly built around 8 ft tall, because adult deer can clear 7 ft. About 8 ft is the safe default in open ground, while 7 ft often holds in wooded areas. Slanted or double fences work shorter by using the deer's poor depth perception. Confirm the height against local extension guidance and site pressure.
Full field guide: Deer and wildlife protectionWhat is a detention pond?
A detention pond is a basin that holds the runoff from a developed site during a storm and releases it slowly through an outlet structure. It cuts the peak flow leaving the site to no more than the pre-development rate, protecting downstream channels and property. A dry detention basin empties between storms.
Full field guide: Detention and retention pondsHow much should the ground slope away from a house?
The ground should fall away from the foundation, with the common code rule a drop of at least 6 in within the first 10 ft, about 5 percent, per the IRC at R401.3. Impervious surfaces near the building can slope about 2 percent. Over-build the fall against settlement and confirm the adopted code edition.
Full field guide: Drainage, grading, and slopeWhen do you need a SWPPP?
You need a SWPPP and NPDES permit coverage when your work disturbs 1 acre or more, or a smaller area that is part of a larger common plan of development reaching an acre. Most states run their own construction stormwater permit, so confirm the specific trigger and forms with the state and local rules.
Full field guide: Erosion control and SWPPPEvery landscaping question (584)
Browse the Landscaping guidesArtificial turf installation
- How do you install artificial turf?
- What base goes under artificial turf?
- What is infill in artificial turf?
- Why does artificial turf wrinkle?
- How much infill do I need per square foot?
- Does artificial turf drain well in clay soil?
- How do you keep artificial turf seams from showing?
- Does artificial turf get hot in the sun?
- How long does artificial turf last and what does the warranty cover?
- How do you maintain artificial turf?
Bioretention and rain gardens
- What is bioretention, and is it the same as a rain garden?
- How fast should a rain garden drain?
- Why is my rain garden not draining?
- What soil goes in a bioretention cell?
- How big does a bioretention cell need to be?
- Do I need an underdrain for my bioretention cell?
- Can you build a rain garden in clay soil?
- Why do bioretention cells clog?
- Rain garden vs bioswale: which do I use?
- Do bioretention cells breed mosquitoes?
Boat dock and marina construction
- What is electric shock drowning?
- What is the difference between a fixed and a floating dock?
- What fasteners are used on a dock?
- Do you need a permit to build a dock?
- How do you keep a dock piling from heaving in ice?
- Why can't you use bare foam under a floating dock?
- What does NEC 555 require for marina electrical?
- What slope does a dock gangway need to be accessible?
- How is a floating dock held in place?
- Why do dock pilings fail faster than expected?
Commercial fence and gate install
- How deep should a fence post be?
- How do you set a fence post in concrete?
- Do automatic gates need safety sensors?
- How far apart are fence posts?
- Do you need to call 811 before installing a fence?
- How high can a commercial fence be?
- What is a cantilever slide gate?
- Why does my gate sag?
- Chain-link or ornamental steel for a security fence?
- Do you need to ground a metal fence?
Commercial holiday lighting install
- How many strings of holiday lights can you connect end to end?
- Do holiday lights need GFCI?
- LED vs incandescent holiday lights: which should a pro install?
- How do you attach holiday lights without damaging the roof?
- How many holiday lights can you run on one circuit?
- Why do my holiday lights keep blowing the fuse?
- How many lights does it take to wrap a tree?
- When should commercial holiday lights be installed and removed?
- Should I lease or buy holiday lights for my business?
- Is it safe to install roofline lights from a ladder?
Commercial maintenance program
- What is included in a commercial landscape maintenance contract?
- What is the one-third mowing rule?
- How often should a commercial property be mowed?
- When should you fertilize a lawn?
- Why is mulch piled against a tree trunk a problem?
- When should you apply pre-emergent weed control?
- What is the difference between base scope and enhancements?
- Can a string trimmer really kill a tree?
- Why document a recurring maintenance visit?
Deck construction field guide
- What is the most common cause of deck collapse?
- How do you attach a deck ledger?
- How deep do deck footings have to be?
- What is DCA 6?
- How tall does a deck railing need to be?
- Why do guardrail posts fail, and how do you attach one?
- Wood or composite decking: which should I use?
- What fasteners do you use on a treated-lumber deck?
- Do you need a permit to build a deck?
- How far can deck joists cantilever past the beam?
Deer and wildlife protection
- How tall does a deer fence need to be?
- Do deer repellents work?
- What are deer-resistant plants?
- What is girdling and why does it kill a tree?
- How do I tell deer damage from rabbit or vole damage?
- How do I protect a newly planted tree from deer and rodents?
- Is it legal to kill or trap deer damaging my landscape?
- Will a motion-activated sprinkler keep deer away for good?
- How do I stop rabbits from eating low plants and bark?
- Why are voles killing trees that look fine above ground?
Detention and retention ponds
- What is a detention pond?
- What is the difference between detention and retention?
- What is an outlet control structure?
- Why do detention ponds need maintenance?
- Why is my detention basin not draining or flooding?
- How long should a detention basin take to drain?
- Can you build a detention pond underground?
- Why can't you plant trees on a detention pond embankment?
- What does an emergency spillway do?
- What design storms does a detention basin have to meet?
Drainage, grading, and slope
- How much should the ground slope away from a house?
- What is the minimum slope for drainage?
- What is a French drain and how much slope does it need?
- How do you fix a yard that ponds?
- Why is my downspout causing a wet basement?
- How steep can a slope be and still be mowed?
- Do I need a drain or just better grading?
- What slope does a drainage swale need?
- Where is it legal to drain my yard's water?
- Why does my retaining wall keep leaning or bowing?
Drip irrigation design and install
- What is drip irrigation?
- What pressure does drip irrigation run at?
- Do you need a filter for drip irrigation?
- How long do you run drip irrigation?
- What is a pressure-compensating emitter, and when do you need one?
- How do you size a drip zone to the water supply?
- Can you mix drip and spray on the same zone?
- Why does drip on a slope flood at the bottom?
- How do you winterize a drip system without wrecking it?
Erosion control and SWPPP
- When do you need a SWPPP?
- What is the difference between erosion and sediment control?
- How do you install silt fence?
- How often do you inspect erosion control?
- How soon do you have to stabilize disturbed soil?
- What does a stabilized construction entrance do?
- Do I need a concrete washout area?
- How big does a sediment basin need to be?
- What happens if your erosion controls fail an inspection?
- Does a site under an acre need erosion control?
Hardscape drainage
- How do you drain a patio?
- Why do retaining walls need drainage?
- What is a chimney drain?
- How much slope does a hardscape need?
- What gravel goes behind a retaining wall?
- Do you need filter fabric behind a retaining wall?
- How tall can a retaining wall be without an engineer?
- Where should downspouts drain near a patio or wall?
- What is hydrostatic pressure on a retaining wall?
- How do you fix a patio or wall that ponds or leans?
Heat illness prevention
- What is heat illness prevention?
- What is acclimatization and why does it matter so much?
- What is the difference between heat exhaustion and heat stroke?
- How much water should workers drink in the heat?
- What temperature do heat illness rules kick in?
- What do you do if a worker has heat stroke?
- Is there a federal OSHA heat standard yet?
- Do I need a written heat illness prevention plan?
- Why is a buddy system important for heat safety?
- Does heat illness only affect outdoor workers?
Hydroseeding and erosion establishment
- What is hydroseeding?
- Is hydroseeding cheaper than sod?
- How long does hydroseed take to grow?
- Why didn't my hydroseed grow?
- How often should I water hydroseed?
- What hydromulch rate do I need on a slope?
- Hydroseeding or dry seeding: which is better?
- Do I need an erosion blanket over hydroseed?
- What is a bonded fiber matrix?
- Can I hydroseed in summer?
Irrigation audit field guide
- What is distribution uniformity in irrigation?
- How do you do a catch-can test?
- Can you mix rotors and sprays on one zone?
- How do I set irrigation run times?
- What is a good DULQ for a sprinkler zone?
- Why are my sprinklers misting?
- What is cycle-and-soak irrigation?
- How do you calculate precipitation rate?
- Why does my lawn have dry spots between sprinkler heads?
- Does an irrigation system need a backflow preventer?
Irrigation controller programming
- How long should you run each zone?
- What is cycle and soak?
- What is a smart irrigation controller?
- How often should you water?
- What time of day should you run irrigation?
- What does the seasonal adjust do on a sprinkler timer?
- Is a rain sensor required for an irrigation system?
- Why is my controller overwatering?
- Soil moisture or weather-based controller: which is better?
- How long should you run drip versus spray?
Irrigation winterization and startup
- How do you winterize a sprinkler system?
- What pressure do you use to blow out sprinklers?
- Do you have to winterize the backflow preventer?
- How do you start up a sprinkler system in spring?
- Can I use a small air compressor to blow out my sprinklers?
- Why is CFM more important than PSI for a blow-out?
- How long do you blow out each zone?
- When should I winterize my irrigation system?
- What happens if I fill the system too fast in spring?
Landscape design and plant selection
- What is right plant, right place?
- How do you design a landscape?
- What is a plant hardiness zone?
- How far apart should you space plants?
- What is the most common landscape design mistake?
- How do you choose plants for shade?
- What are the principles of landscape design?
- Are native plants better for landscaping?
- How do you group plants by water needs?
- How do you keep a landscape interesting in winter?
Landscape estimating and bidding
- How do you estimate a landscaping job?
- How do you price a maintenance contract?
- How do you calculate how much mulch you need?
- How do you add overhead and profit to a bid?
- What is the difference between markup and margin?
- How do you estimate labor for a landscape job?
- Should a landscape bid include a plant warranty?
- What is a takeoff in landscape estimating?
- How do you estimate an install versus a maintenance job?
- How do you convert bulk landscape materials to purchase units?
Landscape IPM field guide
- What is integrated pest management?
- What is the difference between pre-emergent and post-emergent herbicide?
- How do you get rid of grubs in a lawn?
- What is an action threshold?
- How many grubs per square foot before you treat?
- Is it better to spray on a calendar or scout first?
- What do I do if a fungicide or insecticide stops working?
- When should I apply crabgrass pre-emergent?
- Do I need a license to apply pesticides to a lawn?
- Why is healthy turf the best pest control?
Living wall and green wall systems
- What is a living wall?
- What is the difference between a living wall and a green facade?
- How is a living wall irrigated?
- Do living walls damage the building?
- How much does a living wall weigh and does the structure need to be designed for it?
- Do interior living walls need grow lights?
- How often does a living wall need maintenance?
- What kills a living wall fastest?
- What is fertigation on a living wall?
Low-voltage landscape lighting
- How do you size a landscape lighting transformer?
- Why are my far lights dim?
- How deep do you bury landscape lighting wire?
- What wire connectors should I use for landscape lighting?
- What voltage should landscape lights read at the fixture?
- What gauge wire for low-voltage landscape lighting?
- Do I need an electrician for landscape lighting?
- How do I stop landscape lights from glaring into windows?
- What is a multi-tap transformer and when do I need one?
Material handling and lifting ergonomics
- How much weight can one person safely lift?
- What is the NIOSH lifting equation?
- Do back belts prevent injury?
- How do you lift heavy material safely?
- Why are back injuries the most common injury in the trades?
- Should you push or pull a loaded cart?
- What is the best way to prevent lifting injuries on a crew?
- When should a worker report a sore back or shoulder?
- What mechanical aids reduce manual handling in landscaping?
- Does a warm-up or stretching prevent lifting injuries?
Mulch beds and weed control
- How deep should mulch be?
- Does landscape fabric stop weeds?
- How much mulch do I need?
- What is a mulch volcano?
- Organic or rock mulch: which is better for a planting bed?
- Does pre-emergent herbicide work in mulch beds?
- What do I do if weeds keep coming back through the mulch?
- How often should mulch be replaced?
- Can mulch be a fire risk near a building?
- Can you put mulch over existing weeds?
Native and pollinator planting
- What are native plants?
- Why plant for pollinators?
- Do native plantings need less maintenance?
- What is a host plant?
- How much of the year should a pollinator planting bloom?
- Seed or plugs for a native planting?
- Native meadow or designed bed?
- What do I do if my native planting fills with weeds the first year?
- Do I need to amend the soil for native plants?
Outdoor fire feature guide
- How far should a fire pit be from the house?
- Can you put a fire pit on a wood deck?
- Why does fire pit rock explode?
- What gas does an outdoor fireplace use?
- Can you put a gas fire pit under a covered patio or pergola?
- Does an enclosed gas fire pit need to be vented?
- Do you need a permit for an outdoor fire feature?
- Do you need an air mixer for a propane fire pit?
- What size flue does an outdoor fireplace chimney need?
- How do you put out a gas versus a wood fire feature?
Outdoor kitchen construction guide
- What does an outdoor kitchen need to be safe and last?
- Why does an outdoor kitchen cabinet need ventilation?
- Can you use indoor appliances outside?
- Do you need a permit for an outdoor kitchen?
- Propane or natural gas: how does the cabinet venting differ?
- How many vents does a built-in grill island need?
- What is the best countertop material for an outdoor kitchen?
- Can you build an outdoor kitchen with wood framing?
- Do you need a vent hood for an outdoor kitchen?
- How do you winterize an outdoor kitchen in a cold climate?
Paver hardscape installation
- How thick should a paver base be?
- How deep do you dig for a paver patio?
- What is bedding sand and how thick should it be?
- Do you need edge restraint for pavers?
- Why do my pavers keep sinking?
- How do you compact the base for pavers?
- How do you install polymeric sand without haze?
- Do you compact pavers before or after joint sand?
- How much should a paver surface slope for drainage?
- Do you need fabric under a paver base?
Paver layout and field border
- What base do pavers need?
- What paver pattern should I use for a driveway?
- How much paver waste should I order?
- Why do my pavers keep spreading?
- Can I use stone dust under pavers?
- How much should a paver patio slope?
- Do pavers need an edge restraint?
- What causes polymeric sand haze and how do I prevent it?
- How thick is the bedding sand under pavers?
- Do I compact pavers before or after joint sand?
Pergola and shade structure guide
- How do you anchor a pergola against wind?
- Do you need a permit for a pergola?
- How deep should pergola footings be?
- What is a louvered pergola?
- Can you put a pergola on a deck?
- How is a pergola different from a gazebo?
- Why does a covered pergola need more structure than an open one?
- What fasteners should you use on a pressure-treated pergola?
- Does an attached patio cover need flashing like a deck?
- How much snow load does a pergola roof need to carry?
Plant health care (PHC)
- What is plant health care?
- What is the difference between PHC and IPM?
- What is a mulch volcano, and why is it bad?
- Why are tree roots so important to plant health?
- How deep should mulch be around a tree?
- Do I need a soil test before fertilizing a tree?
- How often should a tree be monitored or scouted?
- Why is my tree declining when I can't find any pest?
- How do you fix compacted soil around an established tree?
- Is deep-root fertilization worth it?
Playground safety surfacing
- What is the most important playground safety feature?
- What is critical fall height on a playground?
- How deep should playground surfacing be?
- What is the head entrapment rule on playgrounds?
- How big does the use zone around playground equipment need to be?
- Loose-fill or poured-in-place: which playground surface is better?
- Are playgrounds required to be ADA accessible?
- What do I do if a playground inspection finds a problem?
- How often should a playground be inspected?
Pressure and soft washing
- What is the difference between pressure washing and soft washing?
- Can you pressure wash a roof?
- What chemicals are used in soft washing?
- Where does the wash water go?
- How do you protect plants when soft washing?
- What PSI should I use on concrete versus siding?
- Is high-pressure water dangerous to skin?
- Why does flatwork come out with stripes?
- PSI or GPM: which matters more for commercial work?
- How often should a commercial property be cleaned?
Pump station sizing
- How do you size an irrigation pump?
- What is total dynamic head?
- What is cavitation, and how do you prevent it?
- What pump do you use for a pond versus a well?
- How much suction lift can a pump handle?
- Does a VFD save energy on an irrigation pump?
- Why does my irrigation pump lose pressure at the far zones?
- What protection does an irrigation pump need?
- Can I run an irrigation pump off the city water main?
Retaining wall types and selection
- What type of retaining wall is best?
- When do you need an engineer for a retaining wall?
- Why do retaining walls fail?
- What is a geogrid reinforced wall?
- How tall can a retaining wall be without a permit?
- Gravity wall vs reinforced wall: which do I need?
- What is a surcharge on a retaining wall?
- How far apart do tiered retaining walls need to be?
- What kind of retaining wall lasts the longest?
- Do all retaining walls need drainage behind them?
Running track surfacing
- What is a running track made of?
- Why does the base matter so much for a track?
- What is the difference between a porous and an impermeable track?
- What is World Athletics track certification?
- How flat does a running track base have to be?
- How thick should a running track surface be?
- Can you resurface an old running track?
- Why does line marking have to be so precise on a track?
- What weather do you need to surface a polyurethane track?
- What surface goes on a tennis or pickleball court?
Seasonal color and annual rotation
- What is seasonal color in commercial landscaping?
- What is the difference between cool and warm season annuals?
- How often do you rotate seasonal color?
- Why should you mass annual flowers instead of scattering them?
- How many annual plants do I need per square foot?
- When can I plant warm-season annuals?
- Why does my seasonal color stop blooming halfway through the season?
- Do you need to refresh the soil every color rotation?
- How do you price a seasonal color contract?
Segmental retaining wall build
- When does a retaining wall need an engineer?
- How deep is the base for a retaining wall?
- What is geogrid in a retaining wall?
- Why do retaining walls fail?
- How long does geogrid need to be in a reinforced wall?
- Gravity wall or geogrid-reinforced wall: which do I need?
- Can I build a retaining wall without drainage stone?
- Why is my retaining wall leaning or bulging?
- How tall can a segmental retaining wall be?
- Do tiered retaining walls each need to be under 4 feet?
Site grading and earthwork
- What is site grading?
- What is the difference between rough and finish grading?
- What is cut and fill?
- How much should the ground slope away from a house?
- How do you compact fill so it does not settle?
- Do I have to call 811 before grading?
- What compaction percentage do I need for structural fill?
- What is proof-rolling?
- Can you grade or add fill around an existing tree?
- Do I need a permit and an engineer for site grading?
Smart irrigation field guide
- What is smart irrigation?
- What is evapotranspiration in irrigation?
- What is the difference between ET and soil-moisture controllers?
- Does smart irrigation save water?
- Do I still need a rain sensor with a smart controller?
- How much can I water under local restrictions?
- What does a flow sensor do on an irrigation system?
- Are smart irrigation controllers eligible for rebates?
- Why is my smart controller still overwatering?
Snow and ice management
- What is anti-icing vs de-icing?
- At what temperature does salt stop working?
- How is commercial snow removal priced?
- What is the snow trigger depth?
- Per-push or seasonal: which snow contract is better?
- What is the best ice melt for cold temperatures?
- Why does salt damage concrete and plants?
- What records defend a snow slip-and-fall claim?
- When do snow piles need to be hauled off site?
- Should you plow before the trigger depth is reached?
Sod and turf establishment
- How do you install sod?
- How often do you water new sod?
- When can you mow new sod?
- Why is my new sod dying?
- How long does new sod take to root?
- What is the best time of year to lay sod?
- Do you need to prepare the soil before laying sod?
- How much sod do I need and how much waste should I add?
- Can you lay sod over an existing lawn?
- Why should you roll new sod after laying it?
Soil preparation and amendment
- How do you prepare soil for planting?
- Should you add sand to clay soil?
- How much compost should you add to a planting bed?
- What is a soil test?
- What pH do most plants want?
- How deep should topsoil be for a new lawn?
- Can you till wet soil?
- How do you fix compacted soil on a construction site?
- Do you need to amend soil before laying sod?
Sports field construction
- How do you build a sports field?
- What is a sand-based field?
- Natural grass vs synthetic turf: which is better for a field?
- Why do sports fields have a crown?
- How much does a sports field need to drain?
- What is the Gmax test for a field?
- What grass is best for an athletic field?
- What goes under synthetic turf on a field?
- Can I just lay sod on dirt to make a sports field?
Sprinkler system design
- How do you design a sprinkler system?
- What is matched precipitation rate?
- Can you mix spray heads and rotors on one zone?
- What is head-to-head coverage?
- How many sprinkler heads can one zone run?
- What water pressure does a sprinkler system need?
- Spray heads or rotors: which should I use where?
- Why are my sprinkler heads misting?
- Do I need a backflow preventer for a sprinkler system?
- Should flower beds go on spray or drip?
Subsurface drainage and French drains
- What is a French drain?
- Do French drains need filter fabric?
- What is a catch basin?
- Where does a French drain drain to?
- What slope does a drain pipe need?
- What is the difference between a French drain and a channel drain?
- Should the holes face up or down on a French drain pipe?
- SDR-35 or corrugated HDPE for a drain line?
- Why does my French drain keep clogging?
- Where should a downspout drain to?
Tree and shrub planting
- How deep do you plant a tree?
- How wide should the planting hole be?
- Should you stake a new tree?
- Why is my new tree dying?
- Do you amend the soil when planting a tree?
- How much should you water a newly planted tree?
- Do you remove the wire basket and burlap when planting?
- How long does it take a tree to get established?
- When is the best time to plant trees and shrubs?
- How much should you prune a tree at planting?
Tree cabling and bracing
- What is tree cabling?
- What is the difference between cabling and bracing?
- When should a tree be cabled?
- Does cabling fix a hazard tree?
- What is the difference between static and dynamic tree cabling?
- How high in the tree should a cable be installed?
- How often should tree cables and braces be inspected?
- Can I install tree cables myself?
- How long do tree support systems last?
Tree establishment and aftercare
- How long does a newly planted tree take to establish?
- How often should you water a new tree?
- When should you remove tree stakes?
- How do you know if a new tree is dying?
- What is transplant shock and is it normal?
- Should you fertilize a tree during establishment?
- How do you wean a tree off supplemental watering?
- Do new trees need a trunk guard?
- Can you overwater a newly planted tree?
- Do new trees need to be staked?
Tree pruning and maintenance
- Where do you cut a branch when pruning?
- Is topping a tree bad?
- How much can you prune off a tree at once?
- Should you paint a pruning cut?
- What is the three-cut method for pruning a branch?
- When is the best time to prune a tree?
- Why is lion-tailing bad for a tree?
- Can I prune a tree near a power line myself?
- Why should you not use climbing spikes to prune a tree?
- How often should commercial property trees be pruned?
Tree removal and stump grinding
- When should a tree be removed instead of pruned?
- How do you fell a tree safely?
- Can you remove a tree near a power line?
- What is stump grinding?
- How deep should a stump be ground?
- Do you need to call 811 before grinding a stump?
- Why is tree removal so dangerous?
- Do I need a permit to remove a tree on my property?
- Can I plant a new tree where the old stump was ground?
- What PPE does a tree removal crew need?
Tree risk assessment
- What is tree risk assessment?
- What makes a tree hazardous?
- What are the ISA TRAQ assessment levels?
- Do you have to remove a tree with a defect?
- How often should trees be inspected for risk?
- Is a leaning tree dangerous?
- What does it mean if a tree is hollow?
- Can cabling or pruning fix a hazard tree?
- Who is qualified to assess a hazard tree?
- What should a tree risk assessment report include?
Tree staking and guying
- Do newly planted trees need staking?
- How long should you leave a tree staked?
- How do you stake a tree without damaging it?
- What is the difference between staking and guying?
- Can you use wire and garden hose to stake a tree?
- How many stakes does a tree need?
- Should you stake a bare-root tree?
- How high on the trunk should you tie a stake?
- What happens if you leave a tree staked too long?
Tree transplanting
- Can you transplant a large tree?
- How big does a tree root ball need to be?
- When is the best time to transplant a tree?
- What is transplant shock?
- Should you prune the top of a transplanted tree to compensate for root loss?
- How deep should you plant a transplanted tree?
- Do you remove the wire basket and burlap when planting a transplanted tree?
- How long do you water a transplanted tree?
- Tree spade or balled-and-burlapped: which is better?
- What is the survival rate for transplanted trees?
Turf fertilization and soil testing
- Why should you do a soil test before fertilizing?
- What do the numbers on a fertilizer bag mean?
- What is the difference between slow and quick release fertilizer?
- How much nitrogen does a lawn need?
- When is the best time to fertilize a lawn?
- How do I keep fertilizer from burning the lawn?
- What soil pH does turf need, and how do I change it?
- Why is my lawn yellow even though I fertilized it?
- How do I calibrate a fertilizer spreader?
- How do I keep fertilizer out of waterways?
Turf renovation and overseeding
- What is core aeration?
- What is overseeding a lawn?
- What is topdressing a lawn?
- When should you aerate and overseed?
- Should you renovate the lawn or replace it?
- Can you put down pre-emergent and overseed at the same time?
- Is spike aeration as good as core aeration?
- How thick does thatch have to be before you dethatch?
- How do you water after overseeding?
- What is slit seeding and is it better than broadcasting?
Turfgrass selection
- What is the difference between cool-season and warm-season grass?
- What grass is best for shade?
- What is the transition zone?
- When should you plant grass seed?
- How much grass seed do I need per 1,000 square feet?
- Tall fescue or Kentucky bluegrass: which should I plant?
- What grass holds up to a high-traffic lawn?
- What is the most drought-tolerant grass?
- Should I plant a single grass or a blend?
- Can you grow St. Augustine or zoysia from seed?
Water feature installation
- How do you build a backyard pond?
- What is a pondless waterfall?
- What size pump do I need for a water feature?
- Why does my pond keep losing water?
- Pond or pondless: which is better?
- Does a pond pump need a GFCI?
- Why is my pond water green and how do I clear it?
- How deep should a koi pond be for winter?
- Do I need a skimmer and a biofall?
Xeriscape and drought-tolerant design
- What is xeriscape?
- Is xeriscape just gravel and rocks?
- What is hydrozoning?
- What plants work for a low-water landscape?
- How much water does xeriscape save?
- Do you still water a xeriscape?
- Can I get a rebate for replacing my lawn?
- Does xeriscape mean no lawn at all?
- Is rock or organic mulch better for a dry climate?