When to Plant Celosia in Ashland, WI

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

The first chance to plant celosia in Ashland can be figured out by referring to the USDA zone info.


Planting Calendar for Celosia

Frost tolerance for celosia: Not tolerant of frost.
When to plant: After all chance of frost has passed.

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

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

The earliest that you can plant celosia in Ashland is May. However, you really should wait until June if you don't want to take any chances.

The last month that you can plant celosia and expect a good harvest is probably August. If you wait any later than that and your celosia may not have a chance to really do well. Starting your celosia indoors is a great way to get them started a little bit earlier.

Last Frost Date

In Ashland the average date of last frost happens on May 15. It might get as low as -25°F during the coldest months of winter.

Since the USDA zone info for Ashland is just an average the actual date of last frost is different every year. Since half of the time in Ashland you get surprised by a frost after May 15 be ready to protect your celosia in the event of a surprise late frost.

USDA Zone Info for Ashland

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)May 15
Average Date of First Frost (fall)September 15
Lowest Expected Low-25°F
Highest Expected Low-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Ashland

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