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

In Solon you can figure out when it's a good idea to plant sweet williams by checking out the USDA zone info.

Planting Calendar for Sweet Williams

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

Since sweet williams are moderately cold tolerant you can plant them a little earlier in the year than more sensitive plants.

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

Since the USDA zone info for Solon may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Half of the time in Solon it frosts late in the year after April 15 so just be sure to be ready to protect your sweet williams in the event of a late frost.

USDA Zone Info for Solon

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 Solon

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