The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Middleton can be read to determine when it's the best time to plant balsam.

Planting Calendar for Balsam

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

Since balsam require warm weather you need to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant balsam in Middleton 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 balsam and expect a good harvest is probably August. Any later than that and your balsam may not have a chance to grow to maturity. Starting your balsam indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Middleton. In the coldest months of winter you should expect an average low temperature of 0°F.

Since the USDA zone info for Middleton is just an average the actual date of last frost is different every year. Since half of the time in Middleton last frost occurs after April 15 be ready to cover your balsam in the event of a surprise late frost.

USDA Zone Info for Middleton

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 Middleton

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