One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A common way of getting a good idea when it's the best time to plant helianthemum is to refer to the USDA zone info for Palm Coast.

Planting Calendar for Helianthemum

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

Helianthemum are moderately cold tolerant which tells us that you can get them planted earlier than other frost tender plants.

The earliest that you can plant helianthemum in Palm Coast 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 helianthemum and expect a good harvest is probably October. You probably don't want to wait any later than that or else your helianthemum may not have a chance to grow to maturity. You can get started a little bit earlier by starting your helianthemum indoors.

Last Frost Date

The average date of last frost is February 15 in Palm Coast. You should expect an average low temperature of 20°F in the coldest months of winter.

It's important to remember that USDA zone info for Palm Coast is not always accurate and the actual date of last frost is different every year. Half of the time in Palm Coast there is a last frost after February 15 so just be sure to be ready to protect your helianthemum in the event of a surprise late frost.

USDA Zone Info for Palm Coast

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 Palm Coast

You may be interested in your other planting guides for Palm Coast.