Calla Lilies are among the most colorful and most beautiful flowers in your garden. The gorgeous blooms are long lasting and come in a wide array of colors. Calla Lilies are also among the best cut flowers, and show up in numerous wedding arrangements. Calla Lilies are perennials, returning year after year as long as the climate is not too cold or too wet. If this is the case, you must harvest your bulbs in late fall to protect them and re-plant in the spring after the harsh weather has passed.
Wait until your Calla Lilies enter senescence in late fall, when leaves turn yellowish and start to die, and dig down by hand to bulbs.
Lift your Calla Lilu bulbs up out of the ground very carefully so as not to bruise them and gently wash off the dirt.
Dip your Calla Lily bulbs in fungicide solution so as to protect from disease.
Dry Calla Lily bulbs for five to seven hours with a fan.
Cure Calla Lily bulbs for seven days at a temperature of between 70 to 80 degrees, which toughens skin and also helps protect against disease.
Store your Calla Lily bulbs for a minimum of 10 weeks, and preferably for two months at a temperature of 45 to 50 degrees. You can store your Calla Lily bulbs for as long as 10 months before you return them to the ground.