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.

The USDA zone info for Savannah can be reffered to in order to estimate when to plant cardinal flower.

Planting Calendar for Cardinal Flower

Frost tolerance for cardinal flower:	Not tolerant of frost.
When to plant:	After the last frost has passed.

Since cardinal flower do not do well in cold weather it is important to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant cardinal flower 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 cardinal flower and expect a good harvest is probably August. You probably don't want to wait any later than that or else your cardinal flower may not have a chance to really do well. You can get started a little bit earlier by starting your cardinal flower indoors.

Last Frost Date

In Savannah the average date of last frost happens on March 15. In the coldest months of winter you should expect an average low temperature of 15°F.

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

USDA Zone Info for Savannah

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 Savannah

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