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Euphorbia, one of the largest genera of
flowering plants with over 2,000 species, is a member of one of the
largest plant families in the world, Euphorbiaceae. Several species are
hardy to zone 4, though most Euphorbias are tropical or subtropical in
origin.
Euphorbia should be planted in well-drained,
even poor soil, in a full sun to slightly shaded location. They are
drought tolerant once established and work well in rock gardens, along
walls, on hillsides and dry containers. Easy to grow plants, winter
wetness is usually the only potential problem as it is resistant to deer
and rabbits, and most other pests and diseases.
PLANTING: Space plants 15 to 18 inches apart to allow for ultimate growth. Any moderately fertile soil, even one on the sandy side, will do, as long as drainage is good. Choose a location in full sun or part shade in hot climates. MAINTENANCE: Virtually care free and drought tolerant; once established it will require only light watering during extended dry spells. No division is necessary. We recommend a light winter mulch in zones 4 and 5. If growth becomes loose by mid summer, cut the whole plant back hard and it will regrow in a tight mound.
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