NGA Articles: Planting Bare Root Perennials

Planting Bare Root Perennials

By: National Gardening Association Editors

If you have just purchased your first bare-root perennial, you may be surprised to receive what appears to be a jumble of roots and very little green growth. Don't worry! Most bare-root perennials are shipped in a dormant or semi-dormant state, and will burst forth with life once planted.

Why Bare-Root?

Bare-root perennials have a number of advantages over plants sold in containers. They are often less expensive, since they take up less space and are easier to ship. You may find a greater selection of varieties available, since nurseries can maintain large inventories. Finally, bare-root plants often establish themselves more quickly than container-grown plants -- their roots are often sturdier and aren't pot-bound, and the plants aren't "spoiled" by overly rich potting soil.

Inspecting Plants

As soon as you receive your plants, open the carton and inspect them. What should you look for? The roots and packing material -- usually wood shavings, shredded paper, or sphagnum moss -- should be moist but not soaking wet. A bit of mold on the roots and packing material is OK.

Storing Bare-Root Plants

It's best to plant bare-root perennials immediately. If possible, prepare the planting area ahead of time so you can plant them as soon as they arrive. If you cannot plant right away, you can store plants in a cool (35-50° F), dark place for a day or two. Do not let plants freeze. Keep the plants inside their plastic bag, and make sure packing material remains moist. If you must store them longer than that, heel them into a temporary bed: Dig a trench, remove the plants from their packing material, lay the plants on their sides with the roots in the trench, cover the roots with loose soil, and water well.

Planting

1. Remove plants from their packing material and prune off any damaged or extra long roots. Soak the roots in a pail of warm water set in the shade while you prepare the bed.

2. Most perennials prefer full sun and well-drained soil. If you are creating a new bed, till the area to a depth of about 10 inches, add a few inches of compost, and till again. If you are planting in an established bed, work compost into the top 6 to 8 inches of soil.

3. Inspect the plant to determine the depth of the planting hole you'll need. The plant should sit at the same height it did at the nursery. If the plant has top growth, you'll be able to see the original soil line. If there is no top growth, you'll want to set the plant so the crown -- the top of the roots where the stems will emerge -- sits at or just below the soil line. The width of the planting hole should one and one half times the root spread.


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