One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You will be able to estimate when it's possible to plant sweet williams by looking at the USDA zone info for Forest.

Planting Calendar for Sweet Williams

Frost tolerance for sweet williams:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Sweet Williams do ok in some cold which tells us that you can plant them just a bit earlier in the year than more sensitive plants.

The earliest that you can plant sweet williams in Forest 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 sweet williams and expect a good harvest is probably September. If you wait any later than that and your sweet williams may not have a chance to fully mature. You can get started a little bit earlier by starting your sweet williams indoors.

Last Frost Date

The average date of last frost is March 15 in Forest. In the coldest months of winter you should expect an average low temperature of 10°F.

Remember that USDA zone info for Forest is not always accurate and the actual date of last frost is different every year. Half of the time in Forest last frost occurs after March 15 so make sure that you are prepared to cover your sweet williams in the event of one of those late frosts.

USDA Zone Info for Forest

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 Forest

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