The Q&A Archives: Colchicum Waterlily

Question: I would like more information on colchicum. How tall do they get? Are they very hardy? What growing conditions do they need? Can I use them as ground cover naturalizers? How big do the blooms and foliage get?

Answer: Colchicum Waterlily gets about 9 tall with leaves 12 inches long, is hardy to Zone 7 (adapted to 7-10), requires a well-drained humusy soil in full sun and minimal fertilizing, and will naturalize well where summers are not too wet. Since the foliage does not last throughout the entire season, I do not recommend them as a groundcover .

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