The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. 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 the best time to plant borage is to check out the USDA zone info for Clinton.

Planting Calendar for Borage

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

Borage do well in some cold which means that you can plant them just a bit earlier in the year than more sensitive plants.

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

Last Frost Date

In Clinton the average date of last frost happens on April 15. It might get as low as -15°F during the coldest months of winter.

Since the USDA zone info for Clinton is just an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Clinton there is a last frost after April 15 be ready to cover your borage in the event of one of those late frosts.

USDA Zone Info for Clinton

Here is the info for USDA Zone 5b.

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

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Clinton

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