Help! Canna Lilies are tropical plants and don't like freezing weather. Digging up the Canna Lilies. The flowers on both plants have never fully developed. To keep the plant in more continuous bloom, deadhead on a regular basis. Plant them in a rich, moisture-retentive soil in full sun or light shade. Canna lilies are plants with beautiful bright blooms and unique foliage that can add a tropical look to gardens in almost any region. Calla lily problems arise when the plant is over or under watered. Canna lilies or cannas (Canna x generalis) are native to tropical and subtropical areas. These plants are as lovely for their sword-shaped leaves as well as the cupped blooms. 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. This can cause the heavy calla lily flower to droop. 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. 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. However, in cooler locations, canna lilies are grown like annuals, their bulbs dug up every autumn and stored indoors through cold winters. Can you divide canna lily plants? This is the first time I have tried to grow cannas. A canna lily's flowers usually grow in several stages from a single stem. Overwintering Canna Lilies. Water in dry spells and deadhead regularly to prolong flowering. Flowers are large, with bold, vibrant colors. Growing cannas in your garden is an easy way to create instant tropical flair. The stems of the Canna Lily come out of large rhizomes. Cannas grow 1 1/2 to 5 feet or more, depending on variety. Cannas are tropical and subtropical flowering plants with large, banana-like leaves. Like callas, their rhizomes must be dug up in the fall after frost has blackened the foliage. If your winter is cold enough to freeze the ground then you need to bring in your canna lilies over the winter. I … More on growing canna lilies: Cannas and hedychiums to grow; Cosmos, canna and summer bedding container display Once a flower has withered, cut back the stem to just above the next bloom, which will already be starting to open. In fact, the cannas will bloom more prolifically and healthily if they are divided every 3-5 years. My Calla Lily is Drooping! 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. Canna lilies are perfect for growing at the back or middle of a mixed or tropical border. Today I squeezed one of the green balls and it looked like there was a larvae inside (picture 2). 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