One of the best tools that you have as gardeners to help us figure out 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.

A common way of making a decision about when it's possible to plant rhubarb is to examine the USDA zone info for Youngstown.

Planting Calendar for Rhubarb

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

Rhubarb do well in moderate cold which means that you can get them planted earlier than other plants that might not handle the cold.

The earliest that you can plant rhubarb in Youngstown 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. You can get started a few weeks earlier by starting your rhubarb indoors.

Last Frost Date

The average date of last frost is April 15 in Youngstown. In the coldest months of winter you can expect an average low temperature of -10°F.

Since the USDA zone info for Youngstown is just an average the actual date of last frost is different every year. Since half of the time in Youngstown you get surprised by a frost after April 15 be ready to cover your rhubarb if you have one of those late frosts.

USDA Zone Info for Youngstown

Here is the info for USDA Zone 6a.

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

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

Plants to Grow in Youngstown

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