Canna Lilies are tropical plants and don't like freezing weather. However, in cooler locations, canna lilies are grown like annuals, their bulbs dug up every autumn and stored indoors through cold winters. Canna lilies add a touch of the tropics to the garden and offer easy care in return. Like callas, their rhizomes must be dug up in the fall after frost has blackened the foliage. In hardiness zones 9-12, canna lilies will grow as perennials. Q. Tropicana Canna Lily Not Flowering - I live in lower Michigan, Zone 6a: this is my first year with Canna Lilies. Drooping calla lilies may also be from excess nitrogen or a fungal rot disease. These plants are as lovely for their sword-shaped leaves as well as the cupped blooms. Water in dry spells and deadhead regularly to prolong flowering. Help! Plan to divide the canna at the end of the summer to early fall when the plants are done blooming and the foliage begins to die back. Once this one wilts, cut the stem again to the next flower. Cannas' popularity and active hybridizing have resulted in a dazzling array of cannas to choose from, many with large, showy flowers and variegated leaves that look like stained glass when the sun shines through them. Their large, glossy leaves are 6 to 12 inches wide. This is the first time I have tried to grow cannas. Canna lilies or cannas (Canna x generalis) are native to tropical and subtropical areas. This can cause the heavy calla lily flower to droop. A red canna lily. A canna lily's flowers usually grow in several stages from a single stem. Yes, you can divide and transplant canna lilies. Overwintering Canna Lilies. My Calla Lily is Drooping! I have 2 in pots… I have 2 in pots… Q. Wilting Canna Lily - Our canna lilies are tall and have blooms, but they are falling over a little above the stalk. Plant them in a rich, moisture-retentive soil in full sun or light shade. They are not hardy in Minnesota. Calla lily problems arise when the plant is over or under watered. Once a flower has withered, cut back the stem to just above the next bloom, which will already be starting to open. I have seen none of the green balls on the second pot. Cannas grow 1 1/2 to 5 feet or more, depending on variety. Canna lilies are plants with beautiful bright blooms and unique foliage that can add a tropical look to gardens in almost any region. The stems of the Canna Lily come out of large rhizomes. Today I squeezed one of the green balls and it looked like there was a larvae inside (picture 2). How to Propogate Canna Lilies From Seeds. Canna lilies are perfect for growing at the back or middle of a mixed or tropical border. If your winter is cold enough to freeze the ground then you need to bring in your canna lilies over the winter. Divide canna lilies after they have bloomed by separating the roots but keeping part of the bulb in tact before replanting in quality soil and full sun. To keep the plant in more continuous bloom, deadhead on a regular basis. 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