One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Coleman you can figure out when you can plant alyssum by referring to the USDA zone info.

Planting Calendar for Alyssum

Frost tolerance for alyssum:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Since alyssum do well in cold you can plant them earlier in the year than other plants that might not handle the cold.

The earliest that you can plant alyssum in Coleman is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant alyssum and expect a good harvest is probably September. Any later than that and your alyssum may not have a chance to really do well. You can get started a couple of weeks earlier by starting your alyssum indoors.

Last Frost Date

In Coleman the average date of last frost happens on March 15. In the coldest months of winter you can expect an average low temperature of 10°F.

Since the USDA zone info for Coleman is just an average the actual date of last frost changes from year to year. Half of the time in Coleman you get a frost after March 15 so always be ready to protect your alyssum in the event of one of those late frosts.

USDA Zone Info for Coleman

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°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 15°F.

Plants to Grow in Coleman

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