Answer: Here's what I found from Crownsville Perennial Nursery (http://www.crownsvillenursery.com):
All euphorbias have a milky sap in their stems, sometimes irritating to the skin, and inconspicuous flowers surrounded by colorful bracts. All do best in full sun and well-drained soil. Tolerant of drought and, with no serious pest problems, they are easy to grow.
Euphorbia dulcis ?Chameleon? is one of the most exciting new foliage plants we?ve seen. It forms a dense mound of rich plum purple foliage that really retains its color spring to fall. The flowers and bracts are a contrasting lime green in mid to late summer. Highly recommended. It grow in full sun; to 12-15" and is hardy to Zone 6.
Sounds like a beautiful plant!
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