When to Plant Canna in Woonsocket, RI

The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can determine when you can plant canna in Woonsocket by using the USDA zone info.


Planting Calendar for Canna

Frost tolerance for canna: Not tolerant of frost.
When to plant: After the last frost has passed.

It's probably a bad idea to plant canna until after all chance of frost has passed because they do not do well in cold weather.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant canna
Possibly ok, but a risky time to plant canna
Probably not a good time to plant canna

The earliest that you can plant canna in Woonsocket is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant canna and expect a good harvest is probably August. You probably don't want to wait any later than that or else your canna may not have a chance to fully mature. If you are starting your canna indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

In Woonsocket the average date of last frost happens on April 15. You can expect an average low temperature of -10°F in the coldest months of winter.

Remember that USDA zone info for Woonsocket is just an average and the actual date of last frost will vary from year to year. Half of the time in Woonsocket it frosts late in the year after April 15 so make sure that you are prepared to protect your canna if you have one of those late frosts.

USDA Zone Info for Woonsocket

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-10°F
Highest Expected Low-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Woonsocket

You may be interested in your other planting guides for Woonsocket.