One of the best tools that you have as gardeners to help us estimate 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.

You can determine when it's a good idea to plant stoneseed in Concord by looking at the USDA zone info.

Planting Calendar for Stoneseed

Frost tolerance for stoneseed:	Not tolerant of frost.
When to plant:	After the last frost.

Since stoneseed do not do well in cold weather it is necessary to wait until after the last frost before you can plant them.

The earliest that you can plant stoneseed in Concord 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 stoneseed and expect a good harvest is probably September. If you wait any later than that and your stoneseed may not have a chance to fully mature. Starting your stoneseed 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 Concord. It might get as low as 25°F during the coldest months of winter.

Keep in mind that USDA zone info for Concord may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in Concord it frosts late in the year after February 15 so be sure to be ready to cover your stoneseed if you have one of those late frosts.

USDA Zone Info for Concord

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 Concord

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