Landscaping, Drainage & Outdoor

Master your yard with simple tips for proper drainage, healthy lawns, and safe trees.

Landscaping, Drainage & Outdoor
On this page
  1. The Golden Rule of Grading
  2. Managing Roof Runoff
  3. Yard Drainage Solutions
  4. Trees and Your House
  5. Lawn Care Basics
  6. Irrigation Systems
  7. Hardscaping and Retaining Walls
  8. Lawn Care Through the Seasons
  9. Caring for Trees and Shrubs
  10. Mulch and Garden Beds

The Golden Rule of Grading

The dirt around your house needs to slope away from the walls. Builders call this positive grading. If the dirt slopes toward your house, rain runs right against your foundation. This leads to wet basements, mold, and structural damage over time.

You want the ground to drop 6 inches for the first 10 feet away from your house. If your yard slopes the wrong way, you need to fix it. Add dense topsoil against the foundation and pack it down to create a ramp away from the walls. Read more about protecting your structure in our Foundation & Structure guide.

Watch your mulch. Never pile wood mulch high against your home siding. It traps moisture and invites termites right into your walls. Keep the top of your mulch or soil at least 4 to 6 inches below the bottom edge of your siding.

Managing Roof Runoff

Your roof catches thousands of gallons of water during a heavy storm. Your gutters collect this water, and your downspouts dump it on the ground. If they dump it right next to your house, you have a big problem. Water will pool and seep straight down into your basement or crawlspace.

Push roof runoff at least 5 feet away from your foundation walls.
Push roof runoff at least 5 feet away from your foundation walls.

Add downspout extensions to push that water at least 5 feet away from the house. You can buy simple plastic tubes that attach to the end of the downspout. You can also bury smooth PVC pipes underground to carry the water even further away. Just make sure the end of the pipe stays clear of leaves and debris.

Yard Drainage Solutions

Sometimes grading is not enough. You might have a low spot in your yard that turns into a swamp after a rainstorm. If water sits in your yard for days, you need a drainage system.

  • French Drains: A French drain is a trench filled with gravel and a perforated pipe. It catches water that soaks into the ground and gives it an easy path to flow away.
  • Catch Basins: A catch basin works like a shower drain for your yard. It sits at the lowest point of the yard. Water flows into a grate on top, and a solid underground pipe carries the water to the street or a drainage ditch.
  • Dry Wells: A dry well is a large underground tank with holes in it. You pipe water into the tank, and it slowly leaks out into the surrounding deep soil.

Installing drainage can involve heavy machinery and digging up your lawn. Keep in mind that costs vary widely by region, scope, and home age.

French Drain (per 100 ft)$2,500
Yard Regrading$1,500
Catch Basin Install$800

Trees and Your House

Trees add shade and beauty to your property. But a tree planted too close to your house is a hazard. Tree roots can crack concrete sidewalks and crush underground sewer pipes. High branches can scrape your shingles and dump leaves into your gutters. You can learn about protecting your roof from tree damage in our Roofing guide.

Plant large trees far enough away that their mature branches and roots will not touch your house.
Plant large trees far enough away that their mature branches and roots will not touch your house.

A good rule of thumb is to look up the mature size of the tree before you plant it. The roots usually spread out as far as the branches do. If you have an old, dead tree near your house, hire a professional to cut it down before a storm blows it over.

Tree Size at MaturitySafe Distance from HouseAverage Removal Cost
Small (under 20 feet)10 feet$200 to $500
Medium (20 to 40 feet)15 feet$500 to $1,200
Large (over 40 feet)20 or more feet$1,200 to $3,000

Tree removal costs vary by region, scope, and home age. Removing a tree near power lines always costs more.

Lawn Care Basics

A thick, healthy lawn chokes out weeds naturally. The best thing you can do for your grass is to mow it high. Set your mower deck to 3 or 4 inches. Tall grass grows deeper roots and shades the soil so it stays moist longer.

Water your lawn deeply but infrequently. Give it about an inch of water once or twice a week. This trains the roots to grow deep down looking for moisture. If you water a little bit every day, the roots stay near the surface and dry out fast in the hot sun.

Over time, the soil under your grass gets packed down hard. Water and air cannot reach the roots. You can fix this by aerating your lawn. An aerator machine pulls small plugs of dirt out of the ground to let the soil breathe. If you notice large dead patches in your grass despite watering, you might have grubs. Check out our Pest Control guide for help with yard bugs.

Irrigation Systems

An underground sprinkler system saves you time and keeps your yard green. But it needs regular upkeep. Sprinkler heads sit flush with the ground. They easily get buried by dirt or run over by lawnmowers. Walk your yard once a month while the sprinklers are running. Make sure they spray the grass and not your house walls or the street.

Upgrade your timer. A smart sprinkler controller connects to your home Wi-Fi. It checks the local weather and skips watering on days when it rains. This saves a lot of money on your water bill.

If you live in a place with cold winters, you must winterize your sprinklers before the first freeze. A professional uses an air compressor to blow all the water out of the underground pipes. If you skip this step, the water will freeze, expand, and shatter the pipes.

Hardscaping and Retaining Walls

Patios, walkways, and retaining walls are called hardscaping. They give you solid places to walk and sit. A retaining wall is a heavy structure built to hold back soil on a hill. They look great, but they have a hidden enemy: water pressure.

Weep holes relieve the massive water pressure that builds up behind a retaining wall.
Weep holes relieve the massive water pressure that builds up behind a retaining wall.

When it rains, the dirt behind a retaining wall turns into heavy mud. If the water cannot escape, the pressure will literally push a stone wall over. A properly built wall always has a layer of gravel behind it and a drain pipe at the bottom. It should also have weep holes. These are small gaps or pipes near the bottom that let trapped water leak out. If you plan to hire someone to build a large patio or wall, read our Hiring Contractors & What Things Cost guide so you know what to expect.

Lawn Care Through the Seasons

Your lawn needs different things at different times of year. A few simple jobs done at the right time keep the grass thick and crowd out weeds. The biggest mistake is feeding or seeding at the wrong moment, so the timing matters as much as the task itself.

Leave your grass clippings on the lawn after you mow. They break down fast and feed the soil for free. This only works if you mow often enough that the clippings stay short. A thick layer of long clippings can smother the grass below.

SeasonMain Jobs
SpringRake out dead grass, apply a light feeding once the grass greens up, and patch bare spots.
SummerMow high, water deeply in the morning, and watch for dry patches or insect damage.
FallAerate compacted soil, overseed thin areas, and apply the main feeding of the year.
WinterKeep heavy traffic and parked cars off frozen or dormant grass to avoid crushing the crowns.
Overseed in the fall. Spreading fresh grass seed over a thin lawn works best when nights turn cool but the soil is still warm. The new seed sprouts fast and fills in before winter.

Caring for Trees and Shrubs

Healthy trees and shrubs need a little attention each year. Prune most trees in late winter while they are dormant and leafless. You can see the shape clearly, and the cuts heal fast once spring growth starts. Always cut off dead, broken, or crossing branches first.

Keep limbs trimmed back so they do not touch your roof or siding. Branches that rub on shingles wear them down, and they give insects a bridge onto your house. Read more about protecting your walls in our Exterior & Curb Appeal guide.

Young trees need regular water for the first two or three years while their roots get established. Soak the root zone slowly once or twice a week during dry spells rather than a quick splash every day.

No mulch volcanoes. Never pile mulch in a cone against a tree trunk. Buried bark stays wet, rots, and invites pests and disease. Spread a flat ring of mulch and keep it a few inches away from the trunk itself.

Mulch and Garden Beds

Mulch is a layer of material spread over the soil in your garden beds. It does more than look tidy. It holds moisture in the ground, blocks weed seeds from sprouting, and protects plant roots from heat and cold. As wood mulch breaks down, it slowly feeds the soil too.

Spread mulch 2 to 3 inches deep across the bed. Less than that lets weeds push through. More than that can starve the soil of air and trap too much water against plant stems. Pull the mulch back an inch or two from the base of each plant so the stems can breathe.

Top up your mulch once a year, usually in spring, as the old layer thins out and fades. You rarely need to remove the old mulch first. Just add a fresh layer on top to bring it back to the right depth.

Keep mulch off the siding. Just like grading, mulch piled against your house traps moisture and gives termites a path indoors. Hold the top of the mulch 4 to 6 inches below the bottom edge of your siding. Our Pest Control guide explains how damp beds draw bugs toward your walls.

Frequently asked

How do I know if my yard has bad drainage?

Look for standing water that sticks around for more than a day after a heavy rain. You might also see muddy patches, dead grass, or water stains on your foundation walls.

What is a French drain?

A French drain is a trench filled with gravel and a pipe with holes in it. It catches groundwater and gives it an easy path to flow away from a low spot in your yard.

How often should I water my lawn?

Water your lawn once or twice a week for longer periods rather than a little bit every day. Deep watering trains the grass roots to grow further down into the soil to find moisture.

Can tree roots break my foundation?

Roots usually do not break a solid concrete foundation that is in good shape. But they will squeeze into existing cracks to find moisture. They can also easily crush older underground plumbing pipes.

Why is my retaining wall leaning over?

Leaning is usually caused by poor drainage behind the wall. Wet soil is incredibly heavy. If water gets trapped behind the wall without a way to drain out, the pressure pushes the blocks forward.

When should I fertilize my lawn?

Fall is the best time for the main feeding of the year, since the grass stores up energy for next spring. A lighter feeding in spring once the grass greens up also helps. Avoid heavy feeding in the heat of summer.

How deep should I spread mulch?

Spread mulch about 2 to 3 inches deep across the bed. Less than that lets weeds push through, and more can trap too much water against plant roots. Keep it pulled back an inch or two from plant stems.

When is the best time to prune trees?

Late winter is ideal for most trees, while they are dormant and leafless. The branches are easy to see, and the cuts heal quickly once spring growth begins. Remove dead or broken branches at any time.

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