The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By reviewing the USDA zone info for Cairo it's possible to estimate when you can plant celosia.

Planting Calendar for Celosia

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

Celosia require warm weather which tells us that you have to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant celosia in Cairo 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 couple of weeks earlier by starting your celosia indoors.

Last Frost Date

On average the last frost is on March 15 in Cairo. You should expect an average low temperature of 15°F in the coldest months of winter.

Since the USDA zone info for Cairo is not always accurate the actual date of last frost can change quite a bit from year to year. Half of the time in Cairo it frosts late in the year after March 15 so make sure that you are prepared to cover your celosia in the event of a late frost.

USDA Zone Info for Cairo

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°F

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

Plants to Grow in Cairo

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