When to Plant Pentas in Chesterfield, MO

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.

The USDA zone info for Chesterfield can be used to determine when it's the best time to plant pentas.


Planting Calendar for Pentas

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

Since pentas require warm weather it is important to wait until after the last frost before you can plant them.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant pentas
Possibly ok, but a risky time to plant pentas
Probably not a good time to plant pentas

The earliest that you can plant pentas in Chesterfield 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 little bit earlier by starting your pentas indoors.

Last Frost Date

The average date of last frost is April 15 in Chesterfield. It might get as low as -10°F during the coldest months of winter.

Since the USDA zone info for Chesterfield is an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Chesterfield last frost occurs after April 15 be ready to cover your pentas if you have one of those late frosts.

USDA Zone Info for Chesterfield

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 Chesterfield

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