One of the best tools that you have as gardeners to help us determine 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 way of determining when you can plant endive is to examine the USDA zone info for Clarks Summit.

Planting Calendar for Endive

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

You can plant endive a little earlier in the year because they are moderately cold tolerant.

The earliest that you can plant endive in Clarks Summit 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 endive and expect a good harvest is probably September. You probably don't want to wait any later than that or else your endive may not have a chance to really do well. If you are starting your endive indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average the last frost is on April 15 in Clarks Summit. In the coldest months of winter you can expect an average low temperature of -10°F.

Always keep in mind that the actual date of last frost is just an average because it is based on the USDA zone info for Clarks Summit and it can change quite a bit from year to year. Since half of the time in Clarks Summit there is a last frost after April 15 be ready to cover your endive if you have one of those late frosts.

USDA Zone Info for Clarks Summit

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 Clarks Summit

You may be interested in your other planting guides for Clarks Summit.