One of the first steps you take when you are making a decision about your gardening schedule is find your USDA Zone info. 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 calliopsis in Burlington by reviewing the USDA zone info.

Planting Calendar for Calliopsis

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

Since calliopsis are not cold tolerant it's necessary to wait until after the last frost before you can plant them.

The earliest that you can plant calliopsis in Burlington 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 calliopsis and expect a good harvest is probably August. If you wait any later than that and your calliopsis may not have a chance to really do well. You can get started a few weeks earlier by starting your calliopsis indoors.

Last Frost Date

The average date of last frost is April 15 in Burlington. You should expect an average low temperature of 0°F in the coldest months of winter.

Since the USDA zone info for Burlington may not be accurate from year to year the actual date of last frost will vary from year to year. Since half of the time in Burlington there is a last frost after April 15 be ready to cover your calliopsis in the event of a surprise late frost.

USDA Zone Info for Burlington

Here is the info for USDA Zone 7a.

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

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

Plants to Grow in Burlington

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