One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Washington Court House you can figure out when it's the best time to plant lithospermum by checking out the USDA zone info.

Planting Calendar for Lithospermum

Frost tolerance for lithospermum:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Since lithospermum require warm weather it's important to wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant lithospermum in Washington Court House 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 really do well. Starting your lithospermum indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

In Washington Court House the average date of last frost happens on April 15. It might get as low as -10°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Washington Court House is not always accurate and the actual date of last frost will vary from year to year. Half of the time in Washington Court House it frosts late in the year after April 15 so be sure to be ready to cover your lithospermum in the event of one of those late frosts.

USDA Zone Info for Washington Court House

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 Washington Court House

You may be interested in your other planting guides for Washington Court House.