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.

In Diamond Bar you can estimate when you can plant balsam by checking out 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 really shouldn't plant balsam until after all chance of frost has passed because they require warm weather.

The earliest that you can plant balsam in Diamond Bar 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 balsam and expect a good harvest is probably September. You probably don't want to wait any later than that or else your balsam may not have a chance to really do well. 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 January 31 in Diamond Bar. You should expect an average low temperature of 30°F in the coldest months of winter.

Remember that USDA zone info for Diamond Bar is not always accurate and the actual date of last frost changes from year to year. Half of the time in Diamond Bar it frosts late in the year after January 31 so always be ready to protect your balsam if you have one of those late frosts.

USDA Zone Info for Diamond Bar

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Diamond Bar

You may be interested in your other planting guides for Diamond Bar.