The USDA Zone info is a great tool for gardeners to help us estimate 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.

It's possible to determine when it's the best time to plant coral bells by referring to the USDA zone info for Red Oak.

Planting Calendar for Coral Bells

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

Coral Bells are one of those plants that can tolerate a little bit of cold weather which means that you can get them planted earlier than more sensitive plants.

The earliest that you can plant coral bells in Red Oak 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 coral bells and expect a good harvest is probably September. You probably don't want to wait any later than that or else your coral bells may not have a chance to fully mature. Starting your coral bells indoors is a great way to get them started a few weeks earlier.

Last Frost Date

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

Since the USDA zone info for Red Oak may not be accurate from year to year the actual date of last frost is different every year. Since half of the time in Red Oak it frosts late in the year after March 15 be ready to cover your coral bells if you have one of those late frosts.

USDA Zone Info for Red Oak

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°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 15°F.

Plants to Grow in Red Oak

You may be interested in your other planting guides for Red Oak.