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 it's possible to plant sunflowers is to look at the USDA zone info for Woodstock.

Planting Calendar for Sunflowers

Frost tolerance for sunflowers:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

Since sunflowers are not cold tolerant it's necessary to wait until after the last frost has passed before you can plant them.

The earliest that you can plant sunflowers in Woodstock is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant sunflowers and expect a good harvest is probably August. You probably don't want to wait any later than that or else your sunflowers may not have a chance to really do well. You can get started a little bit earlier by starting your sunflowers indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Woodstock. In the coldest months of winter you should expect an average low temperature of 5°F.

Always keep in mind that USDA zone info for Woodstock is an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Woodstock it frosts late in the year after April 15 so always be ready to protect your sunflowers in the event of a late frost.

USDA Zone Info for Woodstock

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	5°F
Highest Expected Low	10°F

This means that on a really cold year, the coldest it will get is 5°F. On most years you should be prepared to experience lows near 10°F.

Plants to Grow in Woodstock

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