One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can determine when you can plant axilflower in Napa by looking at the USDA zone info.

Planting Calendar for Axilflower

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

Since axilflower require warm weather it is important to wait until after the last frost before you can plant them.

The earliest that you can plant axilflower 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 axilflower and expect a good harvest is probably September. You probably don't want to wait any later than that or else your axilflower may not have a chance to really do well. If you are starting your axilflower indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Napa. You should expect an average low temperature of 25°F in the coldest months of winter.

Since the USDA zone info for Napa is an average the actual date of last frost can change quite a bit from year to year. Half of the time in Napa last frost occurs after February 15 so be sure to be ready to cover your axilflower in the event of one of those late frosts.

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.