One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The first chance to plant sutera in Warrenton can be figured out by referring to the USDA zone info.

Planting Calendar for Sutera

Frost tolerance for sutera:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

You can plant sutera slightly earlier in the year because they are barely cold tolerant.

The earliest that you can plant sutera in Warrenton is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant sutera and expect a good harvest is probably September. If you wait any later than that and your sutera may not have a chance to really do well. If you are starting your sutera indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Warrenton. In the coldest months of winter you should expect an average low temperature of 20°F.

Since the USDA zone info for Warrenton is just an average the actual date of last frost is different every year. Since half of the time in Warrenton there is a last frost after February 15 be ready to protect your sutera in the event of one of those late frosts.

USDA Zone Info for Warrenton

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 Warrenton

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