Top Plants For Sonoma County
Some reseed but seedlings are easy to pull out. Huge size variation amongst species.
The most ornamental species of this diverse plant group develop showy green bracts in terminal panicles that elongate atop tough stems that must be cut to the ground annually after bloom. New growth appears immediately. A few types are known for burgundy foliage and yellow flowers. Most tolerate dry soil with little or no summer water; some self-sow profusely. When cut, all species release a milky, white sap that can cause dermatitis.
(Note that Euphorbia esula, Euphorbia oblongata and Euphorbia lathyris are considered invasive by the California Invasive Plants Council.)