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.

A common way of estimating when it's a good idea to plant pentas is to examine the USDA zone info for Port Royal.

Planting Calendar for Pentas

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

It's probably a bad idea to plant pentas until after the last frost when the weather gets warmer because they are not cold tolerant.

The earliest that you can plant pentas in Port Royal 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 really do well. You can get started a couple of weeks earlier by starting your pentas indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on March 15 in Port Royal. In the coldest months of winter you can expect an average low temperature of 15°F.

It's important to remember that the actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Port Royal and it can change quite a bit from year to year. Since half of the time in Port Royal it frosts late in the year after March 15 be ready to protect your pentas if you have one of those late frosts.

USDA Zone Info for Port Royal

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°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 20°F.

Plants to Grow in Port Royal

You may be interested in your other planting guides for Port Royal.