Mrs. Robb's Bonnet, Euphorbia amygdaloides robbiae, Wood Spurge
Mrs. Robb's Bonnet, Euphorbia amygdaloides robbiae, is a popular choice for part shade that will become drought tolerant after it becomes established. That means you have to water it at least the first year. Mrs. Robb's Bonnet and other wood spurges are deer resistant because the characteristic Euphorbia milky sap is slightly poisonous. Some gardeners with sensitive skin have strong reactions to the sap. Loved for the chartreuse blooms in the spring, Mrs. Robb's Bonnet is a sibling of Euphorbia pulcherrimna, Poinsettia, another plant loved for its leaves rather than its tiny flowers. Some references say Euphorbia amygdaloides is native of Asia and invasive. Others say it is a European native that grows slowly. Ah, the experts. Hardy to 10 below zero F, zones 5 to 9. Great for rock gardens, pots, mass plantings in dappled shade. Native Sun A Euphorbia sport, Red Martin called Red Spurge, would perk up a bed! It's a cross between Euphorbia amy...