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.

You should be able to determine when you can plant pentas by referring to the USDA zone info for Winchester.

Planting Calendar for Pentas

Frost tolerance for pentas:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

Since pentas are not cold tolerant you must wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant pentas in Winchester is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant pentas and expect a good harvest is probably August. You probably don't want to wait any later than that or else your pentas may not have a chance to grow to maturity. Starting your pentas indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average all chance of frost has passed is on April 15 in Winchester. You should expect an average low temperature of -10°F in the coldest months of winter.

Keep in mind that USDA zone info for Winchester is an average and the actual date of last frost will vary from year to year. Half of the time in Winchester last frost occurs after April 15 so just be sure to be ready to cover your pentas in the event of a late frost.

USDA Zone Info for Winchester

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 Winchester

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