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.

You can figure out when to plant plectranthus in Oroville by reviewing the USDA zone info.

Planting Calendar for Plectranthus

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

Plectranthus require warm weather which tells us that it is important to wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant plectranthus in Oroville 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 plectranthus and expect a good harvest is probably September. Any later than that and your plectranthus may not have a chance to really do well. You can get started a little bit earlier by starting your plectranthus indoors.

Last Frost Date

The average date of last frost is February 15 in Oroville. You can expect an average low temperature of 25°F in the coldest months of winter.

Since the USDA zone info for Oroville is just an average the actual date of last frost will vary from year to year. Half of the time in Oroville there is a last frost after February 15 so just be sure to be ready to protect your plectranthus in the event of a surprise late frost.

USDA Zone Info for Oroville

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 Oroville

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