The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Rosenberg can be looked at to determine when it's the best time to plant stevia.

Planting Calendar for Stevia

Frost tolerance for stevia:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Since stevia require warm weather it is necessary to wait until after all chance of frost has passed before you can plant them.

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

Last Frost Date

On average the last frost is on February 15 in Rosenberg. In the coldest months of winter you should expect an average low temperature of 20°F.

Keep in mind that USDA zone info for Rosenberg is just an average and the actual date of last frost changes from year to year. Since half of the time in Rosenberg last frost occurs after February 15 be ready to cover your stevia if you have a late frost.

USDA Zone Info for Rosenberg

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Rosenberg

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