For the past few years, we’ve been having trouble getting grass to grow under our flowering crabapple tree. Is it emitting something that kills the grass? What can we do? – Jean

A dirt patch in grass caused by drought (JJ Gouin)
Dead grass under a crabapple tree never looks good.

Why grass beneath your crabapple tree may not be growing

Crabapples aren’t known for emitting any particular chemical that kills grass. It can still be a challenge to get lawn grass to thrive underneath them for several reasons:

  • Spring Petals: If your crabapple tree is a heavy bloomer, the rain of petals in spring can create a dense, wet carpet that smothers fragile new grass shoots. The petals need to be raked up, but very gently, to keep from uprooting the grass.
  • Fall Fruits: If your tree produces lots of crabapples, the fall fruit drop can be equally as damaging to the grass underneath. They also need to be gently raked up in the fall.
  • Nutrient Competition: Even though crabapples don’t have particularly aggressive roots, all trees compete with lawn grasses for nutrients, and sometimes the lawn loses out. Try planting a tough, shade tolerant, and low-fertility lawn grass, such as creeping red fescue, that might not be as vulnerable to competition.
  • Blocked Light and Water: If the tree is densely branched, it can block sunlight and rain necessary for grass to grow. Thinning the tree can help let in more light and water, and you may want to supplement irrigation under the tree as well.
  • Acidic Soil: Crabapples prefer slightly acidic soil, so if your tree is really happy, chances are the soil underneath is naturally more acidic. Do a soil test to make sure, then look for lawn grasses compatible with your soil type.

If grass just won’t grow under your crabapple, consider digging up the area and creating an annual or perennial flower bed. Perennials in particular will be less vulnerable to falling petals and fruit underneath your tree.

Further Information

Editorial Contributors
Danny Lipford

Danny Lipford


Danny Lipford is a home improvement expert and television personality who started his remodeling business, Lipford Construction, at the age of 21 in Mobile, Alabama. He gained national recognition as the host of the nationally syndicated television show, Today's Homeowner with Danny Lipford, which started as a small cable show in Mobile. Danny's expertise in home improvement has also led him to be a contributor to popular magazines and websites and the go-to source for advice on everything related to the home. He has made over 200 national television appearances and served as the home improvement expert for CBS's The Early Show and The Weather Channel for over a decade. Danny is also the founder of 3 Echoes Content Studio,, and Checking In With Chelsea, a décor and lifestyle blog.

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