Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By using the USDA zone info for Westbrook you should be able to determine when to plant pentas.

Planting Calendar for Pentas

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

You really shouldn't plant pentas until after all chance of frost has passed because they do not do well in cold weather.

The earliest that you can plant pentas in Westbrook 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. If you wait any later than that and your pentas may not have a chance to fully mature. 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 Westbrook. In the coldest months of winter you can expect an average low temperature of -15°F.

Keep in mind that USDA zone info for Westbrook is not always accurate and the actual date of last frost can change quite a bit from year to year. Half of the time in Westbrook there is a last frost after April 15 so always be ready to protect your pentas if you have one of those late frosts.

USDA Zone Info for Westbrook

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 Westbrook

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