Why Do New Landscape Plants Die?

When new landscape plants die within their first year, the plant itself is not always the problem. More often, the trouble begins with planting depth, watering, drainage, root damage, or choosing a plant that does not fit the location. A healthy shrub can only tolerate so much before it packs its little root ball and gives up.

At Bobby & Lynn’s Plant Farm in Dallas, Georgia, we have seen plants thrive after being planted correctly. We have also seen perfectly healthy plants struggle because of one small mistake. The good news is that most first-year plant losses can be prevented.

Quick Answer: Why New Landscape Plants Die

New landscape plants die most often because their roots never become properly established in the surrounding soil.

The most common causes include:

• Planting too deeply
• Watering too much
• Letting the root ball dry out
• Poor drainage
• Circling or damaged roots
• Too much fertilizer
• Mulch piled against the stems
• Too much or too little sunlight
• Competition from nearby trees and grass

The first year is especially important because the plant is still developing the roots it needs to survive Georgia heat, dry weather, and changing soil conditions.

Why New Landscape Plants Die During the First Year

A newly planted shrub may look established above ground, but its roots tell a different story.

Most of the roots are still packed inside the original root ball. Until they begin growing into the surrounding soil, the plant has a limited area from which to collect water.

Think of it as moving into a new house but being allowed to use only one closet.

Everything may look fine from the road, but there is not much room to work with.

According to UGA Extension’s information about transplant shock, spring-planted trees and shrubs can be especially vulnerable because their underdeveloped roots must carry them through their first hot summer. Planting too deeply, poor drainage, root damage, excessive soil amendments, and overwatering can all contribute to transplant stress.

This vulnerable root system is one of the main reasons new landscape plants die during their first year.

Common Reasons New Landscape Plants Die

New Landscape Plants Die From Too Much Water

Overwatering is one of the most misunderstood causes of plant loss.

When a new shrub wilts, our first instinct is often to water it. If it continues wilting, we water it again. Before long, the shrub is sitting in a mud bath it never requested.

Roots need both moisture and oxygen. When soil remains saturated, the air spaces fill with water. Roots may begin to decline because they cannot breathe properly.

New landscape plants die in waterlogged soil because damaged roots are no longer able to absorb moisture, even though plenty of water is present.

Signs New Landscape Plants Are Getting Too Much Water

Watch for:

• Yellowing leaves
• Leaves dropping while the soil is wet
• Soft or dark roots
• Mushy stems near the soil line
• Little or no new growth
• Wilting that does not improve after watering
• A sour or swampy smell in the soil

Wilted leaves do not automatically mean a plant needs more water. Wilting can also happen when damaged roots cannot use the water already in the soil.

Before reaching for the hose, feel the soil several inches below the surface.

New Landscape Plants Die When the Root Ball Dries Out

The opposite problem is just as common.

A new plant may be surrounded by damp soil while the original root ball remains dry. This happens when water runs around the root ball instead of soaking into it.

A quick splash from the hose may wet the mulch and the top inch of soil without reaching the roots.

During hot or windy weather, a container-grown root ball can dry quickly. Once it becomes severely dry, it may resist absorbing water evenly.

Because the roots have not spread very far, new landscape plants die quickly when the original root ball repeatedly dries out.

How to Water New Landscape Plants Correctly

Apply water slowly around the entire root ball.

The goal is to moisten both the root ball and the nearby soil. Do not stop watering simply because the mulch or top inch of soil looks wet.

UGA Extension’s watering guidance recommends keeping the soil around newly planted trees and shrubs moist but not soggy.

Rainfall also matters. A brief afternoon shower may dampen the leaves while providing very little water to the roots.

Watering schedules should never be treated like a kitchen timer. Check the soil and adjust according to rainfall, heat, soil type, plant size, and drainage.

Planting Too Deep Can Make New Landscape Plants Die

Planting too deeply can cause a slow decline that is easy to overlook.

The top of the root ball should generally sit level with or slightly above the surrounding soil. In heavy Georgia clay, planting slightly high is often safer than sinking the plant into a deep hole.

Do not dig the hole deeper than the root ball and then fill the bottom with loose soil. That loose soil may settle and pull the plant lower after watering.

UGA Extension recommends digging the planting hole only as deep as the root ball while making it at least twice as wide. A wide hole encourages roots to grow outward into the surrounding soil.

Some new landscape plants die months after installation because the crown and upper roots were buried from the beginning.

Signs a New Landscape Plant Is Too Deep

• Soil or mulch covers the lower stems
• The trunk enters the soil like a telephone pole
• Water collects around the crown
• Growth remains weak
• Leaves become smaller or thinner
• The plant slowly declines without an obvious pest or disease

When you finish planting, you should still be able to see the original top of the root ball.

Poor Drainage Can Make New Landscape Plants Die

Georgia clay can hold water like it is saving it for later.

Clay soil is not automatically bad soil. It can hold nutrients and moisture well. Trouble begins when water cannot drain away from a planting site.

A deeply dug hole in compacted clay can act like a bathtub. Water enters the loosened soil but cannot move through the dense clay surrounding it.

New landscape plants die when their roots remain trapped in saturated soil for too long.

Before planting in a questionable area, observe the location after rain. Standing water, algae, moss, a swampy odor, or persistently wet soil may indicate a drainage problem.

Our guide to checking whether Georgia clay soil is still too wet explains how to recognize poor drainage and test the soil before planting.

Plants suited to heavier soils may also have a better chance of success. See our list of flowering plants that handle heavy clay soil for ideas.

Circling Roots Can Make New Landscape Plants Die

Container-grown plants sometimes develop roots that circle the inside of the pot.

If those roots remain tightly wrapped after planting, they may continue growing in circles instead of spreading into the landscape soil. Over time, some may become girdling roots that restrict the plant.

Although the decline may be slow, circling roots are another reason new landscape plants die after appearing healthy for several months.

When removing a shrub from its container, inspect the root ball.

Gently loosen small circling roots with your fingers. Dense root mats may need to be scored or cut in several places so the roots can begin growing outward.

UGA Extension advises gardeners to break up or cut compacted root balls before planting.

Do not remove every bit of soil or tear the root system apart. The goal is to redirect the roots, not interrogate them.

New Landscape Plants Die in the Wrong Location

The right plant in the wrong place can become a full-time maintenance problem.

Before planting, consider:

• Hours of direct sunlight
• Intensity of afternoon sun
• Soil drainage
• Mature plant size
• Nearby trees
• Roof runoff
• Irrigation patterns
• Exposure to wind
• Heat reflected from pavement or brick

A plant labeled for full sun may still struggle in a location receiving intense reflected afternoon heat. A shade-loving shrub may burn beside a west-facing wall.

Likewise, a sun-loving flowering shrub planted beneath mature trees may survive but produce weak growth and few blooms.

New landscape plants die more easily when their sunlight, soil moisture, or mature size does not match the location.

Our Plant Directory can help you compare plants by sunlight, mature size, moisture needs, bloom time, and other growing requirements.

You should also consider how close a plant will be to your home. Our guide to how far shrubs should be planted from a house explains why mature size and spacing matter.

Tree Roots and Grass Can Stress New Landscape Plants

Large trees can compete aggressively with newly planted shrubs.

The tree may be several feet away, but its roots can extend well beyond the canopy. Those established roots are already very good at collecting water.

Your new shrub is the newcomer at the dinner table. The mature tree has been there for years and knows where everything is kept.

Grass can also compete with young plants for water and nutrients. A wide mulch ring helps reduce that competition while conserving moisture around the root zone.

Competition does not always kill a shrub immediately, but it can explain why new landscape plants die during hot or dry weather.

Keep the area immediately around a new shrub free from grass and weeds whenever practical.

Fertilizer Can Make New Landscape Plants Die

Fertilizer is not medicine for a struggling plant.

A newly planted shrub needs to establish roots before being pushed to produce lots of leaves and stems. Fertilizer may encourage more top growth than the limited root system can support.

Applying fertilizer directly inside the planting hole can also damage tender roots.

UGA Extension advises gardeners to avoid applying fertilizer inside the planting hole. The same guidance recommends using native soil for most of the backfill instead of creating a pocket filled with heavily amended soil.

Excessive fertilizer can damage tender roots, which is another reason new landscape plants die soon after planting.

Fertilizing a wilted plant during hot weather can add even more stress. Our article Is Summer Heat a Bad Time to Fertilize Shrubs? explains why feeding a stressed plant may make matters worse.

Heavy Mulch Can Make New Landscape Plants Die

Mulch is helpful when it is used correctly.

A two- to three-inch layer can help:

• Conserve soil moisture
• Moderate soil temperature
• Reduce weeds
• Protect roots
• Limit competition from grass

The trouble begins when mulch is piled against the trunk or stems.

Those famous mulch volcanoes may look tidy from a passing car, but they trap moisture against the plant. That can encourage decay, disease, and unwanted roots near the surface.

Over time, this damage may cause new landscape plants to die even though they were healthy when planted.

UGA Extension warns against piling mulch against a tree trunk and recommends leaving the root flare visible.

Keep mulch several inches away from the trunk or main stems. Spread it outward in a wide, even layer instead of building a mountain.

Unhealthy Plants May Die After Planting

Not every plant begins with the same chance of success.

Before buying a landscape plant, inspect it carefully.

Avoid plants with:

• Large sections of dead growth
• Mushy stems
• Severe leaf spotting
• Heavy insect infestations
• A sour smell from the pot
• Roots that are black and soft
• A root ball that has pulled away from the container
• Large circling roots
• Extremely dry soil
• Weeds growing thickly in the pot

A few yellow leaves or minor cosmetic blemishes do not always indicate a serious problem. However, a weak root system can make first-year establishment much harder.

Sometimes new landscape plants die because they were already badly stressed before leaving the nursery.

For more shopping advice, read Five Things We Wish Customers Knew Before Buying Plants.

What We See When New Landscape Plants Die

When someone tells us a plant died “for no reason,” we begin by asking questions.

How deeply was it planted?

How often was it watered?

Did the soil stay wet after rain?

How much sun did the area receive?

Was the root ball loosened?

Was fertilizer placed in the hole?

Did mulch cover the base of the plant?

Most of the time, new landscape plants die because of a root, water, drainage, or location problem rather than a mysterious disease.

We have made planting mistakes too. Anyone who has gardened long enough has probably planted something too deeply, watered something too often, or trusted a plant tag without watching the actual sunlight.

Experience is sometimes just a polite word for remembering what went wrong last time.

How to Prevent New Landscape Plants From Dying

Use this checklist during the first year:

• Choose a plant suited to the location.
• Check its mature height and width.
• Dig the hole wider, not deeper, than the root ball.
• Keep the top of the root ball visible.
• Loosen circling roots before planting.
• Backfill mainly with the native soil.
• Water slowly and deeply.
• Check the soil before watering again.
• Watch how the site drains after rain.
• Keep grass and weeds away from the root zone.
• Apply mulch in a wide, shallow layer.
• Keep mulch away from stems and trunks.
• Avoid placing fertilizer in the planting hole.
• Monitor the plant closely through its first summer.

For step-by-step planting guidance, read How to Plant Flowering Shrubs in Your Landscape.

Can New Landscape Plants Recover?

A plant that wilts, drops a few leaves, or pauses its growth after planting is not necessarily dying.

Temporary transplant stress may cause:

• Mild wilting
• A few yellow leaves
• Brown leaf edges
• Some leaf drop
• Slower growth
• Fewer flowers

Do not assume new landscape plants will die simply because they look rough for a few days.

Avoid reacting to every yellow leaf with additional water or fertilizer. Check the soil, inspect the stems, and look for changes over several days.

A scratch test can help determine whether a woody stem is still alive. Lightly scrape a very small area of the outer bark. Green, moist tissue underneath usually indicates that the stem is alive. Dry brown tissue may be dead.

Check more than one branch before removing the plant.

Frequently Asked Questions About Why New Landscape Plants Die

How often should new landscape plants be watered?

Watering frequency depends on the plant, weather, soil, and drainage. Water deeply enough to moisten the root ball, and then check the soil before watering again. New plants need consistent moisture, but their roots should not remain saturated.

Why do new landscape plants die after several months?

Delayed decline is often connected to planting too deeply, circling roots, poor drainage, repeated drought stress, or competition from nearby trees.

Can too much water make new landscape plants die?

Yes. Constantly saturated soil limits oxygen around the roots and may cause root rot. A wilted plant with wet soil may be suffering from excessive water rather than drought.

Should fertilizer be used when a new plant looks weak?

Usually not. Fertilizer does not correct poor drainage, dry roots, or improper planting depth. It may add stress to an already damaged root system.

Can a new plant recover after losing its leaves?

Sometimes. Leaf loss can be a response to transplant stress, drought, excessive water, or root damage. Check whether the stems are still alive and correct the underlying problem before giving up on the plant.

Should a dead plant be replaced in the same hole?

First determine why the original plant died. Check the drainage, planting depth, sunlight, and nearby root competition.

Replacing it without correcting the problem may lead to the same result with a brand-new victim.

Final Thoughts

When new landscape plants die, it can feel as though you wasted your money, your time, and a perfectly good Saturday afternoon.

Do not let one lost shrub convince you that you cannot grow plants.

Most first-year losses can be traced to a handful of correctable problems. Choose the right plant, keep the root ball at the proper depth, water according to the soil rather than the calendar, and watch the plant closely through its first summer.

Once the roots become established, the plant will be far better prepared to handle the heat, rain, and occasional stubbornness of a Southern yard.