The USDA Zone info is a great tool for gardeners to help us figure out 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 Orinda should be reviewed to figure out when it's a good idea to plant balsam.

Planting Calendar for Balsam

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

Balsam do not do well in cold weather which means that it is necessary to wait until it warms up after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant balsam in Orinda 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 grow to maturity. Starting your balsam indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Orinda. You can expect an average low temperature of 25°F in the coldest months of winter.

Keep in mind that USDA zone info for Orinda is an average and the actual date of last frost is different every year. Since half of the time in Orinda it frosts late in the year after February 15 be ready to cover your balsam in the event of one of those late frosts.

USDA Zone Info for Orinda

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 Orinda

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