Baltimore Sun Sunday

On those pesky sweetgum balls and privacy plants

- By Ellen Nibali

The lawn of our new home has a lot of these prickly balls, and more are still on the tree they fell from. I’m worried about them killing the grass. How do I deal with this?

Sweetgum balls, the seed capsules of the American sweetgum tree, are like little birdfeeder­s. Notice the seeds sprinkled in the photo. A moderate, nottoo-fast grower, sweetgum trees make magnificen­t shade trees 60 to 75 feet in height, with clean deep green star-shaped summer foliage. The red, yellow and purple fall foliage vary yearly, sometimes rivaling sugar maples.

Though sweetgum balls can be considered ornamental, they definitely make this a tree you don’t want hanging over a sidewalk or rain gutter. In most cases, turf hides the balls, and they can be left on lawns to decompose and feed the soil. Fortunatel­y, their intricate design provides so much surface area that they break down fairly quickly once heat and humidity speed up decomposit­ion.

A surplus of

gumballs can be dried and used in handicraft­s or even as slug-stopping mulch.

What are good plant choices for a privacy screen?

You don’t mention a desired height or whether in sun or shade, so we suggest you peruse the “Plants for Mixed Privacy Screens” list on our Home and Garden Informatio­n Center website.

You may be surprised to see that categories include deciduous shrubs, grasses and vines as well as evergreen shrubs and trees.

This is because a

can stay healthier than one that is strictly a single species of plant. When a plant or disease gets into a single-species border, there is nothing to stop it.

A mixed border limits the possibilit­y of infestatio­n, since most plant disease and pests are specialist­s. A mixed border also will nurture a wider range of beneficial insects, plus it looks more natural. As always, we highly recommend natives. By using native plants in home landscapes, we have the potential to create new wildlife corridors.

University of Maryland Extension’s Home and Garden Informatio­n Center offers free gardening and pest informatio­n at extension.umd.edu/hgic. Click “Ask Maryland’s Gardening Experts” to send questions and photos.

 ?? ELLEN NIBALI/FOR THE BALTIMORE SUN ?? Prickly sweetgum balls make for a nuisance on sidewalks but excellent food source for birds and insects and fertilizer for yards.
ELLEN NIBALI/FOR THE BALTIMORE SUN Prickly sweetgum balls make for a nuisance on sidewalks but excellent food source for birds and insects and fertilizer for yards.

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