When to Plant Celosia in Spencer, IA

The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The best time to plant celosia in Spencer can be figured out by looking at 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.

It's a bad idea to plant celosia until after the last frost when the weather gets warmer because they require warm weather.

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 Spencer 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 celosia and expect a good harvest is probably August. 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 Spencer the average date of last frost happens on April 15. You should expect an average low temperature of -20°F in the coldest months of winter.

Since the USDA zone info for Spencer may not be accurate from year to year the actual date of last frost will vary from year to year. Since half of the time in Spencer it frosts late in the year after April 15 be ready to protect your celosia in the event of a late frost.

USDA Zone Info for Spencer

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 Spencer

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