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

A way of estimating when it's the best time to plant moon vine is to examine the USDA zone info for Atherton.

Planting Calendar for Moon Vine

Frost tolerance for moon vine:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

It's a bad idea to plant moon vine until after the last frost because they do not do well in cold weather.

The earliest that you can plant moon vine in Atherton 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 moon vine and expect a good harvest is probably September. If you wait any later than that and your moon vine may not have a chance to fully mature. If you are starting your moon vine indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

In Atherton the average date of last frost happens on February 15. It might get as low as 25°F during the coldest months of winter.

Keep in mind that USDA zone info for Atherton 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 Atherton you get surprised by a frost after February 15 so always be ready to protect your moon vine in the event of a surprise late frost.

USDA Zone Info for Atherton

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 Atherton

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