Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By referring to the USDA zone info for Campbell you will be able to estimate when you can plant stoneseed.

Planting Calendar for Stoneseed

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

Since stoneseed require warm weather you must wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant stoneseed in Campbell 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. You can get started a few weeks earlier by starting your stoneseed indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Campbell. It might get as low as 25°F during the coldest months of winter.

It's important to remember that USDA zone info for Campbell is not always accurate and the actual date of last frost will vary from year to year. Half of the time in Campbell there is a last frost after February 15 so make sure that you are prepared to cover your stoneseed in the event of a late frost.

USDA Zone Info for Campbell

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 Campbell

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