The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. 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 estimate when you can plant lithospermum by checking out the USDA zone info for Westwego.

Planting Calendar for Lithospermum

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

It's probably not a good idea to plant lithospermum until after the last frost because they require warm weather.

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

The last month that you can plant lithospermum and expect a good harvest is probably September. 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 little bit earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Westwego. You can expect an average low temperature of 25°F in the coldest months of winter.

Keep in mind that USDA zone info for Westwego is an average and the actual date of last frost changes from year to year. Half of the time in Westwego it frosts late in the year after February 15 so always be ready to cover your lithospermum if you have a late frost.

USDA Zone Info for Westwego

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Westwego

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