Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can estimate when it's a good idea to plant alyssum in Jackson by reviewing 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.

Alyssum tend to make it in pretty solid cold which tells us that you can plant them much earlier in the year than plants that are more sensitive to the cold.

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

The last month that you can plant alyssum and expect a good harvest is probably August. If you wait any later than that and your alyssum may not have a chance to really do well. You can get started a little bit earlier by starting your alyssum indoors.

Last Frost Date

The average date of last frost is May 15 in Jackson. In the coldest months of winter you can expect an average low temperature of -25°F.

Keep in mind that USDA zone info for Jackson is not always accurate and the actual date of last frost can change quite a bit from year to year. Half of the time in Jackson you get a frost after May 15 so just be sure to be ready to protect your alyssum in the event of one of those late frosts.

USDA Zone Info for Jackson

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Jackson

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