The USDA Zone info is a great tool for gardeners to help us estimate your gardening 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 West Mifflin 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 a bit of cold which means that you can plant them a lot earlier in the year than other plants that might not handle the cold.

The earliest that you can plant alyssum in West Mifflin 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. Starting your alyssum indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in West Mifflin. In the coldest months of winter you can expect an average low temperature of -5°F.

Just be sure to remember that USDA zone info for West Mifflin is just an average and the actual date of last frost changes from year to year. Half of the time in West Mifflin it frosts late in the year after April 15 so make sure that you are prepared to protect your alyssum if you have one of those late frosts.

USDA Zone Info for West Mifflin

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 West Mifflin

You may be interested in your other planting guides for West Mifflin.