Before planting it is a good idea to find your USDA Zone info to estimate 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.

One way of estimating when it's a good idea to plant celosia is to check out the USDA zone info for Chelsea.

Planting Calendar for Celosia

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

You can not plant celosia until after all chance of frost has passed because they do not do well in cold weather.

The earliest that you can plant celosia in Chelsea 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. You probably don't want to wait any later than that or else your celosia may not have a chance to really do well. You can get started a few weeks earlier by starting your celosia indoors.

Last Frost Date

The average date of last frost is March 15 in Chelsea. In the coldest months of winter you should expect an average low temperature of 10°F.

Keep in mind that USDA zone info for Chelsea is an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Chelsea you get a frost after March 15 so make sure that you are ready to protect your celosia if you have one of those late frosts.

USDA Zone Info for Chelsea

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°F

This means that on a really cold year, the coldest it will get is 10°F. On most years you should be prepared to experience lows near 15°F.

Plants to Grow in Chelsea

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