The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A common way of making a decision about when to plant sweet williams is to check out the USDA zone info for Belton.

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 are moderately cold tolerant which means that you can get them planted earlier than more sensitive plants.

The earliest that you can plant sweet williams in Belton 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 April 15 in Belton. In the coldest months of winter you can expect an average low temperature of -10°F.

Since the USDA zone info for Belton is an average the actual date of last frost will vary from year to year. Half of the time in Belton you get surprised by a frost after April 15 so make sure that you are prepared to protect your sweet williams if you have one of those late frosts.

USDA Zone Info for Belton

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 Belton

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