When to Plant Calendula in Morrisville, PA

One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You will be able to estimate when you can plant calendula by checking out the USDA zone info for Morrisville.


Planting Calendar for Calendula

Frost tolerance for calendula: Tolerant of some frost.
When to plant: Up to 5 weeks before last frost.

Since calendula are moderately cold tolerant you can plant them a bit earlier in the year than other frost tender plants.

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

The earliest that you can plant calendula in Morrisville is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant calendula and expect a good harvest is probably September. If you wait any later than that and your calendula may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your calendula indoors.

Last Frost Date

The average date of last frost is April 15 in Morrisville. In the coldest months of winter you should expect an average low temperature of 0°F.

Since the USDA zone info for Morrisville is not always accurate the actual date of last frost changes from year to year. Since half of the time in Morrisville you get a frost after April 15 be ready to protect your calendula if you have one of those late frosts.

USDA Zone Info for Morrisville

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low0°F
Highest Expected Low5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Morrisville

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