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

A way of getting a good idea when it's possible to plant swan river daisy is to look at the USDA zone info for Groton.

Planting Calendar for Swan River Daisy

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

Swan River Daisy require warm weather which tells us that you need to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant swan river daisy in Groton 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 swan river daisy and expect a good harvest is probably August. Any later than that and your swan river daisy may not have a chance to really do well. You can get started a couple of weeks earlier by starting your swan river daisy indoors.

Last Frost Date

The average date of last frost is April 15 in Groton. You should expect an average low temperature of -5°F in the coldest months of winter.

Keep in mind that the actual date of last frost is an average because it is based on the USDA zone info for Groton and it can change quite a bit from year to year. Half of the time in Groton you get a frost after April 15 so just be sure to be ready to cover your swan river daisy if you have a late frost.

USDA Zone Info for Groton

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Groton

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