One of the first steps you take when you are getting a good idea your gardening schedule is find your 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.

It's possible to determine when to plant guara by using the USDA zone info for Napa.

Planting Calendar for Guara

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

Since guara do not do well in cold weather you must wait until after all chance of frost has passed before you can plant them.

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

Since the USDA zone info for Napa is not always accurate the actual date of last frost can change quite a bit from year to year. Since half of the time in Napa you get a frost after February 15 be ready to cover your guara in the event of a 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.