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.

A way of determining when you can plant sweet williams is to consult the USDA zone info for Fox River Grove.

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 tells us that you can plant them earlier than other frost tender plants.

The earliest that you can plant sweet williams in Fox River Grove 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 really do well. If you are starting your sweet williams indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Fox River Grove. It might get as low as -15°F during the coldest months of winter.

Remember that USDA zone info for Fox River Grove is not always accurate and the actual date of last frost will vary from year to year. Half of the time in Fox River Grove you get surprised by a frost after April 15 so make sure that you are prepared to cover your sweet williams in the event of a late frost.

USDA Zone Info for Fox River Grove

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Fox River Grove

You may be interested in your other planting guides for Fox River Grove.