(aka: E. 'Dean's Hybrid') I first saw this amazing euphorbia on a trip to Sacramento, where it just screamed "Take me home!" Once in NC, it screamed, "Take me back to CA!" ...just kidding. This amazing E. cyparissias hybrid looks similar to the species with very linear blue leaves, but it clumps instead of runs. Kudos to California's Dean Dalton for discovering this gem. The 18" tall x 2' wide clump is topped, starting in late April (NC), with screaming yellow flowers that last through summer. Where it isn't winter hardy, it makes a superb container specimen, both for texture and color. We changed the name to E. 'Dean' since the word hybrid can't be part of a cultivar name. Good drainage is essential for this and most euphorbias.