The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A way of making a decision about when to plant lithospermum is to use the USDA zone info for Girard.

Planting Calendar for Lithospermum

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

Since lithospermum require warm weather you have to wait until after the last frost has passed before you can plant them.

The earliest that you can plant lithospermum in Girard 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. If you wait 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 couple of weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Girard. In the coldest months of winter you can expect an average low temperature of -10°F.

Just be sure to remember that USDA zone info for Girard is not always accurate and the actual date of last frost will vary from year to year. Since half of the time in Girard you get surprised by a frost after April 15 be ready to protect your lithospermum if you have a surprise late frost.

USDA Zone Info for Girard

Here is the info for USDA Zone 6a.

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

Plants to Grow in Girard

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