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.

The first opportunity to plant balsam in Sonora can be figured out by using the USDA zone info.

Planting Calendar for Balsam

Frost tolerance for balsam:	Not tolerant of frost.
When to plant:	After the last frost has passed.

You should not plant balsam until after the last frost when the weather gets warmer because they are not cold tolerant.

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

Last Frost Date

In Sonora the average date of last frost happens on February 15. In the coldest months of winter you should expect an average low temperature of 20°F.

It's important to remember that USDA zone info for Sonora is not always accurate and the actual date of last frost is different every year. Since half of the time in Sonora you get surprised by a frost after February 15 be ready to protect your balsam in the event of one of those late frosts.

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.