When to Plant Tithonia in Morrisville, PA

One of the first steps you take when you are figuring out 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 first opportunity to plant tithonia in Morrisville should be determined by referring to the USDA zone info.


Planting Calendar for Tithonia

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

You really shouldn't plant tithonia until after all chance of frost has passed because they are not cold tolerant.

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

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

Last Frost Date

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

Since the USDA zone info for Morrisville is not always accurate the actual date of last frost is different every year. Since half of the time in Morrisville it frosts late in the year after April 15 be ready to protect your tithonia 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.