Blue Cohosh is a choice woodland wildflower treasured for its lacy blue-green foliage and deep blue berries. This beautiful shade garden plant prefers a soil with abundant organic matter from decaying leaves and consistent moisture. A cluster of yellow flowers …
Blue Cohosh (Caulophyllum thalictroides) is a choice woodland wildflower treasured for its lacy blue-green foliage and deep blue berries. This beautiful shade garden plant prefers a soil with abundant organic matter from decaying leaves and consistent moisture. A cluster of yellow flowers appears at the branching "Y" of the stem in spring, and gives way to the berries that eventually turn blue. The berries are slightly toxic for humans, and should not be eaten. Late season foliage turns bright green-gold. Combine this shade-loving species with lower growing wildflowers and sedges. Once established at a favorable site, Blue Cohosh is a long-lived plant.
Native plants can be grown outside of their native range in the appropriate growing conditions. This map shows the native range, as well as the introduced range, of this species.
Plant Shipping Rates: Plant orders of $50.00 and under, add $9.95 shipping charge. Plant orders over $50.00, add 18% of the total plant cost.
We ship plants in the spring, and in the fall, during our plant-shipping periods. Fall plant-shipping begins on September 11, 2023, and the last day to order plants for fall shipment is October 1, 2023.
During checkout, you will choose a Shipping Week for your plant delivery, from the dates that are available. The week that you choose will be included in your order confirmation email. When your plants have shipped you will receive another email that includes tracking information.
GENERAL SHIPPING INFORMATION
We are not able to combine a new order with a previous order, for shipping.
Plants and Seeds are shipped separately and have different shipping rates.
We are not able to arrange orders for pick-up at the Nursery. All orders are shipped.
RESTRICTIONS
Plants and Seeds are shipped within the contiguous United States, only.
Due to agricultural restrictions we no longer ship to the following states: Idaho, Utah.
Does it spread by its roots? If so, how fast. Is it aggressive?
Blue Cohosh is not an agressive spreader. In ideal conditions (rich moist soil in a shady location) it spreads very slowly by rhizome. You are not likely to experience any problems at all with it "taking over."
Is Blue Cohosh deer resistant?
Blue Cohosh is Not known to be deer resistant.
To find a list of deer resistant plants, use the "Benefits" filter and select Deer Resistant as a filtering option.
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