One of the first steps you take when you are figuring out 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.

It's possible to estimate when you can plant alyssum by referring to the USDA zone info for Spring Hill.

Planting Calendar for Alyssum

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

Alyssum do ok in cold weather which means that you can plant them quite a bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant alyssum in Spring Hill 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. Starting your alyssum indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Spring Hill. You should expect an average low temperature of -10°F in the coldest months of winter.

Since the USDA zone info for Spring Hill is not always accurate the actual date of last frost can change quite a bit from year to year. Since half of the time in Spring Hill there is a last frost after April 15 be ready to protect your alyssum if you have one of those late frosts.

USDA Zone Info for Spring Hill

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°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 -5°F.

Plants to Grow in Spring Hill

You may be interested in your other planting guides for Spring Hill.