The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Murphysboro you can estimate when to plant alyssum by looking at 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.

You can plant alyssum a lot earlier in the year because they are one of those plants that can tolerate quite a bit of cold weather.

The earliest that you can plant alyssum in Murphysboro 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 fully mature. You can get started a little bit earlier by starting your alyssum indoors.

Last Frost Date

On average the last frost is on April 15 in Murphysboro. You can expect an average low temperature of -5°F in the coldest months of winter.

Since the USDA zone info for Murphysboro is an average the actual date of last frost will vary from year to year. Half of the time in Murphysboro last frost occurs after April 15 so be sure to be ready to protect your alyssum in the event of a late frost.

USDA Zone Info for Murphysboro

Here is the info for USDA Zone 6b.

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

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

Plants to Grow in Murphysboro

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