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

A common way of determining when to plant helianthemum is to check out the USDA zone info for Hamlet.

Planting Calendar for Helianthemum

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

Since helianthemum do well in moderate cold you can plant them a little bit earlier in the year than more sensitive plants.

The earliest that you can plant helianthemum in Hamlet 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 really do well. If you are starting your helianthemum indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Hamlet. In the coldest months of winter you should expect an average low temperature of 5°F.

Since the USDA zone info for Hamlet is an average the actual date of last frost is different every year. Half of the time in Hamlet there is a last frost after April 15 so make sure that you are prepared to protect your helianthemum in the event of one of those late frosts.

USDA Zone Info for Hamlet

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	5°F
Highest Expected Low	10°F

This means that on a really cold year, the coldest it will get is 5°F. On most years you should be prepared to experience lows near 10°F.

Plants to Grow in Hamlet

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