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.

A common way of estimating when you can plant four-o-clock flower is to refer to the USDA zone info for Woodstock.

Planting Calendar for Four-o-clock flower

Frost tolerance for four-o-clock flower:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

Since four-o-clock flower are not cold tolerant you have to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant four-o-clock flower 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 four-o-clock flower and expect a good harvest is probably August. If you wait any later than that and your four-o-clock flower may not have a chance to really do well. Starting your four-o-clock flower indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Woodstock. In the coldest months of winter you should expect an average low temperature of 5°F.

Remember that the actual date of last frost is an average because it is based on the USDA zone info for Woodstock and it changes from year to year. Since half of the time in Woodstock it frosts late in the year after April 15 be ready to protect your four-o-clock flower if you have 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.