One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You should be able to determine when it's possible to plant plectranthus by reviewing the USDA zone info for Litchfield.

Planting Calendar for Plectranthus

Frost tolerance for plectranthus:	Not tolerant of frost.
When to plant:	After the last frost.

Plectranthus require warm weather which means that it's important to wait until it warms up after the last frost before you can plant them.

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

The last month that you can plant plectranthus and expect a good harvest is probably August. If you wait any later than that and your plectranthus may not have a chance to fully mature. Starting your plectranthus indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

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

It's important to remember that USDA zone info for Litchfield is an average and the actual date of last frost is different every year. Half of the time in Litchfield you get surprised by a frost after May 15 so make sure that you are ready to cover your plectranthus in the event of a surprise late frost.

USDA Zone Info for Litchfield

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°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 -20°F.

Plants to Grow in Litchfield

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