HOW TO OVERWINTER CANNA LILIES
Canna lilies are a spectacular, late summer flowering perennial, and a popular choice in northern Europe for those who wants to bring a taste of the exotic into the garden. Furthermore, if you are lucky with the weather then you can experience these gorgeous blooms right up to the beginning of December!
To reduce the penetration of ground frosts the apply a thick layer of dry mulch such as straw, bracken or bark chips. Be aware that successfully overwintered canna lilies will emerge much later than specimens lifted and brought in under protection. In fact you may not see your first leaves emerge until late June, or even early July!
Traditional overwintering of Canna lilies
Before the plants become too dry, cut off the leaves and roots in readiness for storing through the winter. Plant up the rooted stems in moist, but not wet, peat or leaf mold in a frost-free position. If kept too dry the rhizomes will shrivel up and die, but keep them too wet and they will be at risk of rotting off during to fungal infections.
Overwintered canna lilies can be planted back outside in late spring once the threat of late frosts have passed.
NOTE. If you know that you will be lifting your canna lilies at the time of purchase then consider planting into large terracotta pots beforehand and sinking those into the ground. This makes lifting them later on on the season a much simpler operation.
For related articles click onto the following links:
HOW TO GROW CANNA LILIES FROM SEED
HOW TO OVER-WINTER CITRUS PLANTS OUTSIDE
HOW TO OVERWINTER GUNNERA MANICATA
THE CANNA LILY
THE HISTORY OF THE CANNA LILY