One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. 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 it's a good idea to plant angelonia is to check out the USDA zone info for Sonora.

Planting Calendar for Angelonia

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

Angelonia do ok in moderate cold which means that you can start planting them slightly earlier than other plants that might not handle the cold.

The earliest that you can plant angelonia in Sonora 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 angelonia and expect a good harvest is probably September. You probably don't want to wait any later than that or else your angelonia may not have a chance to really do well. Starting your angelonia indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Sonora. You should expect an average low temperature of 20°F in the coldest months of winter.

Since the USDA zone info for Sonora may not be accurate from year to year the actual date of last frost will vary from year to year. Since half of the time in Sonora you get a frost after February 15 be ready to protect your angelonia in the event of a late frost.

USDA Zone Info for Sonora

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 Sonora

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