(2-5 cm), and lift the rhizomes for winter storage. As soon as temperatures drop below freezing and the foliage turns brown, cut down the foliage and stems to about 1-2 in.Not sure about your growing zone? Check here. If you live in a colder area and you want to save your rhizomes for next spring, you may dig them up before the first frost and store them over winter before replanting them next spring.Most calla lilies are winter hardy in zones 8-10, so in these warm climates, the rhizomes can be left right in the ground.Overwintering - Calla Lilies in the ground Regular deadheading encourages calla lilies to put all their energy into making flowers rather than seeds.Ħ.This will promote new calla lily flowers. Remove the flower stems after the blooms have faded.Feed with a balanced liquid fertilizer every two weeks until the flowers have faded.Provide consistent moisture during the growing season and do not allow the soil to dry out. The rhizomes take about 13-16 weeks to start flowering, depending upon the cultivar and planting date.Ĭlick here to compare all Calla Lilies 5.
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