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.

By using the USDA zone info for Riverside it's possible to determine when it's the best time to plant flowering tobacco.

Planting Calendar for Flowering Tobacco

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

Flowering Tobacco do not do well in cold weather which tells us that you have to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant flowering tobacco in Riverside 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 flowering tobacco and expect a good harvest is probably September. Any later than that and your flowering tobacco may not have a chance to fully mature. If you are starting your flowering tobacco indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

In Riverside the average date of last frost happens on February 15. In the coldest months of winter you should expect an average low temperature of 25°F.

Keep in mind that USDA zone info for Riverside is not always accurate and the actual date of last frost will vary from year to year. Half of the time in Riverside you get a frost after February 15 so be sure to be ready to cover your flowering tobacco if you have one of those late frosts.

USDA Zone Info for Riverside

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 Riverside

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