One of the first steps you take when you are getting a good idea your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You will be able to figure out when it's the best time to plant lithospermum by using the USDA zone info for Huntersville.

Planting Calendar for Lithospermum

Frost tolerance for lithospermum:	Not tolerant of frost.
When to plant:	After the last frost has passed.

Since lithospermum do not do well in cold weather you must wait until after the last frost before you can plant them.

The earliest that you can plant lithospermum in Huntersville is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant lithospermum and expect a good harvest is probably August. Any later than that and your lithospermum may not have a chance to grow to maturity. If you are starting your lithospermum indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

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

Since the USDA zone info for Huntersville is just an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Huntersville it frosts late in the year after April 15 be ready to protect your lithospermum if you have a surprise late frost.

USDA Zone Info for Huntersville

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 Huntersville

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