When to Plant Canna in Westfield, MA

Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You can determine when it's possible to plant canna in Westfield by looking at the USDA zone info.


Planting Calendar for Canna

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

Since canna do not do well in cold weather it's important to wait until after the last frost before you can plant them.

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 Westfield 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. If you wait any later than that and your canna may not have a chance to really do well. Starting your canna indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Westfield. You should expect an average low temperature of -10°F in the coldest months of winter.

Remember that the actual date of last frost is just an average because it is based on the USDA zone info for Westfield and it can change quite a bit from year to year. Half of the time in Westfield it frosts late in the year after April 15 so be sure to be ready to cover your canna in the event of a late frost.

USDA Zone Info for Westfield

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 Westfield

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