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

In Loveland you can figure out when it's possible 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 has passed.

Since lithospermum are not cold tolerant you must wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant lithospermum in Loveland 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. You probably don't want to wait any later than that or else 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 has passed is on April 15 in Loveland. You should expect an average low temperature of -15°F in the coldest months of winter.

Keep in mind that USDA zone info for Loveland is an average and the actual date of last frost is different every year. Since half of the time in Loveland there is a last frost after April 15 be ready to cover your lithospermum in the event of one of those late frosts.

USDA Zone Info for Loveland

Here is the info for USDA Zone 5b.

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

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Loveland

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