When to Plant Evolvulus in New Castle, PA

One of the first steps you take when you are determining 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.

The USDA zone info for New Castle should be reviewed to estimate when it's a good idea to plant evolvulus.


Planting Calendar for Evolvulus

Frost tolerance for evolvulus: Not tolerant of frost.
When to plant: After the last frost when the weather gets warmer.

Since evolvulus require warm weather you have to wait until after all chance of frost has passed before you can plant them.

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

The earliest that you can plant evolvulus in New Castle 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 evolvulus and expect a good harvest is probably August. You probably don't want to wait any later than that or else your evolvulus may not have a chance to really do well. Starting your evolvulus indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in New Castle. It might get as low as -10°F during the coldest months of winter.

Remember that the actual date of last frost is not always accurate because it is based on the USDA zone info for New Castle and it changes from year to year. Since half of the time in New Castle there is a last frost after April 15 be ready to cover your evolvulus if you have a late frost.

USDA Zone Info for New Castle

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 New Castle

You may be interested in your other planting guides for New Castle.