
It has to be grown in a sandy rich soil, on sunny exposure. A winter rest with a much reduced watering will greatly help in promoting a generous flowering on the following season. Old clumps may be divided so as to produce more plants; this is done by uprooting the plant after flowers are gone and slicing the rhizomatous roots with a knife or machete. Plants grown from seeds will not be able to flower before the second year of cultivation when the rhizome will be big enough.





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