Black Walnut
(Juglans nigra)

Large oval to rounded, somewhat open-crowned tree. Considered the most valuable timber tree. Native in SE South Dakota. Edible nuts. Attracts wildlife.

Crown Height - 35 to 60 feet
Crown Width - 30 to 50 feet

Root System - Produces a deep, extensive taproot. Roots and decaying plant parts release a toxic compound (juglone) which inhibits the growth of other plants growing near Black Walnut trees.

Prefers deep, well-drained, fertile, loamy soils. Does not withstand extended ponding or drought.