WOODLAND OPENINGS, PARTIALLY SHADED SITES & SHRUBBY SITES ASSOCIATED WITH BIOENGINEERING
These sites generally involve working around trees and shrubs, while minimizing damage to trunks and roots. Undesirable vegetation must be controlled by tilling or direct spraying with glyphosate. The soil needs to be loosened in order to establish seed-to-soil contact and dense leaf litter should be broken up. This can be accomplished using a rototiller. Seedlings can emerge from light leaf litter if planted at the proper depth. Light mulch or hydromulch can protect the seeds and soil until germination. Seeding and mulching around bioengineering should occur immediately after bioengineering materials are installed. If bioengineering material cannot be installed immediately after grading, mulching and temporary seeding are recommended.
Habitat: Moderate shade is a general characteristic of these sites. Many species are adapted to moderate shade and the protective habitat of the trees.
Fertility: Adding organic matter is most important to improve soil fertility. Check your soil pH and select species adapted to that pH. Shade tolerant native grass species, such as Elymus hystrix (Bottlebrush Grass), Panicum clandestinum (Deer Tongue), Cinna arundinacea (Wood Reedgrass), and Elymus riparius (Riverbank Wild Rye), provide early protection for the emerging herbaceous species.
Seeding Method: Hand seed, broadcast, or hydroseed. Drag or roll the surface to incorporate the seed 1/4”-1/2” into the soil. A seed drill can be used when sufficient room exists for operation.
Infrequent dormant mowing (4”-6” high) and controlled burning (by experienced professionals) can protect native forb and grass species from woody undergrowth invasion. Spot treat for invasives only.