One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A common way of estimating when it's the best time to plant iresene is to refer to the USDA zone info for Savannah.

Planting Calendar for Iresene

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

You really shouldn't plant iresene until after the last frost when the weather gets warmer because they require warm weather.

The earliest that you can plant iresene in Savannah 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 iresene and expect a good harvest is probably August. Any later than that and your iresene may not have a chance to grow to maturity. You can get started a little bit earlier by starting your iresene indoors.

Last Frost Date

In Savannah the average date of last frost happens on April 15. It might get as low as 5°F during the coldest months of winter.

Keep in mind that the actual date of last frost is not always accurate because it is based on the USDA zone info for Savannah and it can change quite a bit from year to year. Half of the time in Savannah you get a frost after April 15 so make sure that you are prepared to protect your iresene in the event of a surprise late frost.

USDA Zone Info for Savannah

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	5°F
Highest Expected Low	10°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 10°F.

Plants to Grow in Savannah

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