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Trees for Wet Sites

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Lane Greer

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Sweetbay magnolia
Photo Credit: Lane Greer
Grow sweetbay magnolia for its creamy-white flowers and heavenly scent.
There’s a great Bugs Bunny cartoon in which his antagonist, a highway construction worker, gets flattened by an elevator. As the construction worker steps out of the elevator shaft, he remarks, “I’m feeling mighty low.”

There may be some mighty low spots in your yard, too – places that tend to hold onto water after every rain. At my house, there’s an underground spring that runs just at the edge of my property, and I’m tired of getting the lawn mower stuck there every week during the summer. Isn’t there something better to use than grass?!

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Sycamore bark
Photo Credit: Lane Greer
One of the best qualities of sycamore is its bark, which peels off to reveal gray, white and reddish-brown hues.
Actually, yes. There are several trees that grow very well in these low, wet spots:

Sweetbay magnolia (Magnolia virginiana; hardy in zones 5-9). A US native, sweetbay magnolia is a shrubby tree, evergreen in the Deep South but deciduous farther north. It grows quickly up to about 15 feet in the North, but reaches 50 feet in the South. The tree’s flowers are the same creamy-white as those of Southern magnolia (M. grandiflora) and have the same wonderful lemony fragrance, but sweetbay’s flowers are much smaller. Sweetbay will grow in full sun or part shade.

Sycamore (Platanus occidentalis; hardy in zones 4-9). Our native sycamore is valued for its peeling bark, showing patches of gray, white and reddish-brown. Its leaves are very large – a perennial favorite among children – and the fruits are fuzzy, dull yellow globes that drop in autumn. (Most sycamores don’t produce a lot of fruit, so don’t worry about this being a messy tree.) The tree grows very tall – up to 75 feet if conditions are right.

Warnings
  • Although they are wonderful trees, weeping willows should be carefully located, because the roots will tear up plumbing pipes in a heartbeat. They also need a lot of room to spread out and look their best.
Facts
  • Sycamores are amazingly versatile. They can grow in very dry or very wet places, and they’re great street trees, adapting well to pollution and city environments.
Tips
  • Some perennials for wet areas include swamp milkweed (Asclepias incarnata; hardy in zones 3-6), yellow flag (Iris pseudacorus; hardy in zones 4-9) and cardinal flower (Lobelia cardinalis; hardy in zones 3-9).
 
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  • Garden: Swamped (for Plants That Like it Wet)
    Making a home for plants that like it wet isn’t hard to do. Just grab a shovel, a pond tarp and a weekend, and start digging to create a lovely raised-bed swamp that’ll keep even your thirstiest plants happy.
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