As a horticulture and landscape gardening expert , I can confidently say that canna bulbs have the potential to number back twelvemonth after year in warm climates , specifically USDA hardiness zone 8 to 10 . These regions typically have milder wintertime and longer growing season , which create favorable conditions for canna plant to survive and thrive .
In these warmer zone , canna bulbs can be left in the primer coat over wintertime without much concern . The medulla will go dormant during the colder month but will spud new growth when the weather warm up up again in springtime . This makes canna reliable perennials in these areas , bringing beautiful blooms and lavish leaf year after yr .
However , it is important to note that north of zona 8 , the bulbs will not survive the harsh winter conditions if leave in the terra firma . In colder climate , it is necessary to grok up the bulbs before the first frost and store them indoors for the winter season . This process , known as lifting or overwintering , helps protect the bulb from freeze temperatures and ensures their longevity .
To lift canna bulbs for overwintering , begin by cut back the foliage to about 6 inches above the earth . cautiously dig around the base of the works , being cautious not to damage the medulla oblongata . Gently lift the clump of bulbs from the ground , shake off any excess dirt . At this degree , you may mark that the bulbs have reproduce , forming unexampled offset or “ baby ” bulb .
Next , separate the offsets from the main bulbs , ensuring that each partition has some roots attached . These offsets can be replanted to create Modern canna plants or shared with champion and fellow nurseryman . Once divided , allow the bulbs to dry out in a cool , juiceless place for a few days . This drying full point help prevent decompose during storage .
After the bulbs have dried , store them in a cool , dark , and well - ventilated sphere for the winter . Some gardeners prefer to store them in dry peat moss or sawdust , while others use paper bags or mesh container . The key is to provide a dry and breathable environment that will forbid the lightbulb from molder or drying out totally .
Throughout the wintertime , it is important to check on the bulbs sporadically to secure they are not becoming too teetotal or make grow foretoken of decay . Discard any bulbs that show foretoken of rot or harm , as they may not survive the next grow time of year .
In early spring , as the risk of Robert Lee Frost has passed , it is time to set for the canna light bulb ’ return to the garden . embed the bulbs in well - draining dirt , about 4 to 6 in mystifying , with the grow points facing upwardly . H2O the newly plant bulbs soundly and allow for them with adequate sunlight to encourage development .
With proper care and maintenance , canna bulbs can continue to come back year after year , bring home the bacon a stunning display of vibrant heyday and lush leafage . Whether you live in a warm climate where they can be leave in the undercoat or a cold region where they require overwintering , canna plants are a wondrous gain to any garden .
Caroline Bates
