When can I plant Melampodium in Zone 5a

Before planting it is a good idea to find our USDA Zone info to figure out our garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for our area.

You can estimate when to plant melampodium in Zone 5a by referring to the USDA zone info.


Planting Calendar for Melampodium

Frost tolerance for melampodium: Not tolerant of frost.
When you should plant them: After all chance of frost has passed.

Melampodium are not cold tolerant which tells us that you have to wait until it warms up after the last frost before you can plant them.

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

The earliest that you can plant melampodium in Zone 5a 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 melampodium and expect a good harvest is probably August. Any later than that and your melampodium may not have a chance to really do well. Starting your melampodium 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 Zone 5a. It might get as low as -20°F during the coldest months of winter.

Keep in mind that our actual date of last frost is just an average because it is based on the USDA zone info for Zone 5a and it can change quite a bit from year to year. Since half of the time in Zone 5a last frost occurs after April 15 be ready to protect your melampodium in the event of a surprise late frost.

USDA Zone Info for Zone 5a

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-20°F
Highest Expected Low-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Zone 5a

You may be interested in our other planting guides for Zone 5a.