Canna Lily Bulbs

The best time to plant canna lily bulbs is in spring after the last frost, when soil temperatures reach at least 60°F. Warm soil encourages strong root development, leading to faster growth and earlier blooms. In colder climates, you can start canna lily rhizomes indoors in pots and transplant them once the weather warms up for a head start on the season.

While many people refer to canna lily bulbs, these plants actually grow from rhizomes—underground stems that store nutrients and sprout new shoots. Some gardeners call them canna lily tubers, but true tubers, like potatoes, function differently. Rhizomes spread and multiply over time, allowing canna lilies to return and expand each year.

Yes, planting canna lily bulbs in full sun (at least 6–8 hours per day) ensures the strongest growth and most vibrant blooms. While they can tolerate partial shade, too much shade may cause weak stems and fewer flowers. For container planting, place them in the sunniest spot possible for best results.

Absolutely! Canna lily rhizomes thrive in large containers with enough space to spread. Use a Power Planter bulb auger, well-draining potting mix, and a container at least 12 inches deep to plant your bulbs. Since potted plants dry out faster than those in the ground, regular watering is key. Occasionally adding a slow-release fertilizer will promote continuous blooming and healthy foliage.