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

The USDA zone info for Lehighton can be reffered to in order to determine when to plant calendula.

Planting Calendar for Calendula

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

Since calendula are one of those plants that can tolerate a little bit of cold weather you can plant them a bit earlier in the year than more sensitive plants.

The earliest that you can plant calendula in Lehighton 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 calendula and expect a good harvest is probably September. If you wait any later than that and your calendula may not have a chance to grow to maturity. You can get started a little bit earlier by starting your calendula indoors.

Last Frost Date

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

Since the USDA zone info for Lehighton may not be accurate from year to year the actual date of last frost changes from year to year. Since half of the time in Lehighton last frost occurs after April 15 be ready to protect your calendula if you have a late frost.

USDA Zone Info for Lehighton

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 Lehighton

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