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.

You will be able to determine when you can plant helianthemum by referring to the USDA zone info for Deridder.

Planting Calendar for Helianthemum

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

Helianthemum tend to make it in some cold which tells us that you can plant them a bit earlier in the year than other frost tender plants.

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

The last month that you can plant helianthemum and expect a good harvest is probably September. If you wait any later than that and your helianthemum may not have a chance to fully mature. You can get started a few weeks earlier by starting your helianthemum indoors.

Last Frost Date

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

It's important to remember that USDA zone info for Deridder is not always accurate and the actual date of last frost will vary from year to year. Since half of the time in Deridder there is a last frost after March 15 be ready to cover your helianthemum in the event of a surprise late frost.

USDA Zone Info for Deridder

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 Deridder

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