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 earliest that you can plant stoneseed in Mill Valley can be figured out by checking out the USDA zone info.

Planting Calendar for Stoneseed

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

Stoneseed require warm weather which tells us that it's 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 stoneseed in Mill Valley 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 stoneseed and expect a good harvest is probably September. You probably don't want to wait any later than that or else your stoneseed may not have a chance to fully mature. Starting your stoneseed indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

In Mill Valley the average date of last frost happens on January 31. You can expect an average low temperature of 30°F in the coldest months of winter.

Remember that USDA zone info for Mill Valley may not be accurate from year to year and the actual date of last frost will vary from year to year. Since half of the time in Mill Valley it frosts late in the year after January 31 be ready to cover your stoneseed if you have a late frost.

USDA Zone Info for Mill Valley

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 Mill Valley

You may be interested in your other planting guides for Mill Valley.