One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

One way of estimating when it's possible to plant rhubarb is to check out the USDA zone info for Dayton.

Planting Calendar for Rhubarb

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

Rhubarb are moderately cold tolerant which tells us that you can plant them earlier than other plants that might not handle the cold.

The earliest that you can plant rhubarb in Dayton 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 rhubarb and expect a good harvest is probably September. Any later than that and your rhubarb may not have a chance to really do well. Starting your rhubarb 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 Dayton. It might get as low as 5°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Dayton is just an average and the actual date of last frost changes from year to year. Half of the time in Dayton it frosts late in the year after April 15 so always be ready to protect your rhubarb if you have one of those late frosts.

USDA Zone Info for Dayton

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 Dayton

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