One of the best tools that you have as gardeners to help us figure out 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.

By checking out the USDA zone info for Charleston you should be able to estimate when it's possible to plant galium.

Planting Calendar for Galium

Frost tolerance for galium:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Since galium are one of those plants that can tolerate a little bit of cold weather you can plant them a little earlier in the year than other frost tender plants.

The earliest that you can plant galium in Charleston is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant galium and expect a good harvest is probably October. Any later than that and your galium may not have a chance to grow to maturity. Starting your galium indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost has passed is on February 15 in Charleston. It might get as low as 20°F during the coldest months of winter.

Keep in mind that USDA zone info for Charleston may not be accurate from year to year and the actual date of last frost is different every year. Half of the time in Charleston you get surprised by a frost after February 15 so make sure that you are prepared to cover your galium in the event of a late frost.

USDA Zone Info for Charleston

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Charleston

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