Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

One way of making a decision about when to plant sweet williams is to use the USDA zone info for Covington.

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 well in moderate cold which tells us that you can get them planted earlier than other frost tender plants.

The earliest that you can plant sweet williams in Covington 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. Any later than that and your sweet williams may not have a chance to fully mature. Starting your sweet williams indoors is a great way to get them started a little bit earlier.

Last Frost Date

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

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

USDA Zone Info for Covington

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 Covington

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