Before planting it is a good idea to find your USDA Zone info to determine 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 opportunity to plant celosia in Madison should be figured out by reviewing the USDA zone info.

Planting Calendar for Celosia

Frost tolerance for celosia:	Not tolerant of frost.
When to plant:	After the last frost.

It's probably not a good idea to plant celosia until after the last frost has passed because they require warm weather.

The earliest that you can plant celosia in Madison 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 fully mature. You can get started a little bit earlier by starting your celosia indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Madison. It might get as low as -5°F during the coldest months of winter.

Keep in mind that USDA zone info for Madison may not be accurate from year to year and the actual date of last frost changes from year to year. Half of the time in Madison you get a frost after April 15 so always be ready to cover your celosia in the event of a surprise late frost.

USDA Zone Info for Madison

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

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

Plants to Grow in Madison

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