Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Horn Lake you can determine when it's possible to plant helianthemum by reviewing the USDA zone info.

Planting Calendar for Helianthemum

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

Helianthemum do well in moderate cold which means that you can plant them a little earlier in the year than more sensitive plants.

The earliest that you can plant helianthemum in Horn Lake 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. Any later than that and your helianthemum may not have a chance to fully mature. Starting your helianthemum indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost is on March 15 in Horn Lake. It might get as low as 10°F during the coldest months of winter.

Since the USDA zone info for Horn Lake is not always accurate the actual date of last frost will vary from year to year. Since half of the time in Horn Lake there is a last frost after March 15 be ready to protect your helianthemum if you have a surprise late frost.

USDA Zone Info for Horn Lake

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°F

This means that on a really cold year, the coldest it will get is 10°F. On most years you should be prepared to experience lows near 15°F.

Plants to Grow in Horn Lake

You may be interested in your other planting guides for Horn Lake.