Autumn's earliest reds in these two Kentucky natives
In the earliest days of autumn, red leaves appear within the tangled, brushy fencerows of rural Kentucky roads. These bright spots of fall color are often provided by two native trees -- sumac, in its several species, and sassafras. I enjoy seeing them progress into an overall state of crimson as the season continues.
Sassafras (Sassafras albidium) can grow to be a large understory tree (up to 50 feet tall) in the woods. The larger sumacs, such as flameleaf (Rhus copallinum) and staghorn (Rhus typhina), can reach 35 feet of height in ideal conditions, such as at the sunny edge of a grove of trees. However, in the fencerows along roads, these trees don't often attain such heights.
Along the county and state roads, the road departments use regular mowing, brush cutters, and herbicides to discourage woody growth. Our regional electric company uses a horrible, aerial "bush hog" under power lines. It chops and breaks every growing thing to a 10-foot height. Farmers repair their fences and clear the trees and bushes from the fencerows from time to time.
These sorts of setbacks don't kill out the sumac and sassafras. Both these trees have extensive root systems that will shoot up new trees. Individual stems may perish, but sassafras and sumac colonies will persist as long as their root systems survive to send up root suckers. That explains the widespread occurrence of these two trees in the fencerows.
In addition, both trees produce fruit that is eaten by birds. When birds rest and roost on the fences and in the bushy growth of the fencerow, seed-laden droppings fall to the ground. This is one of nature's methods of planting new trees.
Sumac provides one of nature's most reliable autumn reds. The fall colors of sassafras include bright yellow, orange, red, and purple.
Sassafras may be hard to kill, but they sure are hard to get started. I'm a bit of a tree nut, so I've been doing my best to plant natives all over my corner of suburban Lexington. The sassafras I've been trying to get started on the railroad embankment have given me the most trouble.
ReplyDeleteThe taproots are hard to transplant, even on nursery stock (Shooting Star nursery in Georgetown, KY) That one struggled for a year, so I added one my father in-law dug off his property. The wild one seemed to do better, though both suffered damage through that early thaw we had two Januaries ago and the ice storm this spring.
The strange weather this year really must have had an effect, because both seemed to struggle with chlorosis all summer. I tried a couple of treatments, and seemed to have the best luck greening them back up with a foliar epsom salt spray. That said, I'll be surprised if either makes it through the winter. I'll probably try again with a fresh crop in the spring, as I'm really looking for the fall color, and maybe some homemade gumbo file' powder.
Jim, according to Gary Hightshoe's Native Trees, Shrubs, and Vines for Urban and Rural America, iron chlorosis is a frequent problem with sassafras. He also says that they are sensitive to soil compaction and that they prefer an acid soil (ph 6.0-6.5).
ReplyDeleteHightshoe comments that sassafras are difficult to transplant, but can be transplanted with "ball and burlap" technique in early spring.
A search of Google books for how to propagate sassafras reveals a number of old-time books that recommend root cuttings and seeds as the best means of propagation. Practical Woody Plant Propagation for Nursery Growers by A. Bruce Macdonald has some good information about doing a root cutting properly.
Sumac berries make a tasty lemonady drink --- just have to be sure that you are harvesting the right type of sumac!
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