One of the first steps you take when you are getting a good idea your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A way of estimating when to plant pentas is to examine the USDA zone info for Edinboro.

Planting Calendar for Pentas

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

You should not plant pentas until after all chance of frost has passed because they are not cold tolerant.

The earliest that you can plant pentas in Edinboro 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. Any later than that and your pentas may not have a chance to fully mature. You can get started a little bit earlier by starting your pentas indoors.

Last Frost Date

The average date of last frost is April 15 in Edinboro. You can expect an average low temperature of -15°F in the coldest months of winter.

Since the USDA zone info for Edinboro is just an average the actual date of last frost is different every year. Since half of the time in Edinboro it frosts late in the year after April 15 be ready to cover your pentas if you have one of those late frosts.

USDA Zone Info for Edinboro

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 Edinboro

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