Canna lilies (often just called Cannas) are stunning tropical beauties that bring a serious vacation vibe to any garden. Since they’re originally from the tropics, they aren’t exactly used to our cooler climates. Because of that, you’ll need to keep a few things in mind when planting them to make sure they really thrive in your neck of the woods.
The Best Time to Plant
Knowing when to plant your Cannas depends on whether you’re starting with a bare rhizome or a plant that’s already been started in a pot. If you’re working with rhizomes, wait until May when the threat of night frost has passed. However, if you’ve got a plant that’s already leafed out, it’s best to wait until early summer—around mid-June—to move it outdoors.
Containers vs. In-Ground Planting
There’s also a bit of a difference between planting Cannas in garden beds versus containers. For in-ground planting, you really shouldn’t start before mid-May for the reasons mentioned above. But if you’re planting in pots, you have a bit more flexibility! You can actually start setting your containers outside during the day as early as March, provided the temperature is at least 50°F (10°C). Just remember to bring them back inside if it gets chilly!
Finding the Perfect Spot
Picking the right location is key to getting those vibrant blooms. You want a spot that gets plenty of sun but is also tucked away from harsh winds and heavy rain. This is especially important if you’re keeping your Cannas in pots on a balcony. As for the soil, Cannas are a bit picky—they love a “rich” environment. Look for soil that is:
- Nutrient-rich
- Well-draining
- Consistently moist
- Loamy
How to Get Them in the Ground
If you’ve decided to plant your Cannas directly in the garden, start by loosening the soil to a depth of about 12 to 15 inches. To give them a head start, mix some compost into the deeper layers of the soil to boost the nutrient levels (no need to do this for the top 4 inches). Next, plant your rhizomes about 2 to 3 inches deep. Make sure to space them about 12 to 15 inches apart so they have plenty of room to spread their wings!
