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

A way of getting a good idea when to plant plectranthus is to use the USDA zone info for Riverdale.

Planting Calendar for Plectranthus

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

Since plectranthus are not cold tolerant it's important to wait until after the last frost has passed before you can plant them.

The earliest that you can plant plectranthus in Riverdale 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 plectranthus and expect a good harvest is probably August. You probably don't want to wait any later than that or else your plectranthus may not have a chance to really do well. You can get started a few weeks earlier by starting your plectranthus indoors.

Last Frost Date

The average date of last frost is March 15 in Riverdale. It might get as low as 10°F during the coldest months of winter.

Remember that USDA zone info for Riverdale may not be accurate from year to year and the actual date of last frost changes from year to year. Half of the time in Riverdale last frost occurs after March 15 so always be ready to protect your plectranthus in the event of a surprise late frost.

USDA Zone Info for Riverdale

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°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 15°F.

Plants to Grow in Riverdale

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