The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By referring to the USDA zone info for Napa it's possible to estimate when it's possible to plant moon vine.

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.

Moon Vine do not do well in cold weather which tells us that it's important 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 moon vine in Napa 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. You probably don't want to wait any later than that or else your moon vine may not have a chance to grow to maturity. If you are starting your moon vine indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is February 15 in Napa. It might get as low as 25°F during the coldest months of winter.

Keep in mind that USDA zone info for Napa is an average and the actual date of last frost changes from year to year. Half of the time in Napa you get surprised by a frost after February 15 so be sure to be ready to protect your moon vine if you have a surprise late frost.

USDA Zone Info for Napa

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 Napa

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