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

The first chance to plant flax in Vallejo should be determined by referring to the USDA zone info.

Planting Calendar for Flax

Frost tolerance for flax:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Flax can survive in moderate cold which tells us that you can plant them just a bit earlier in the year than more sensitive plants.

The earliest that you can plant flax in Vallejo is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant flax and expect a good harvest is probably October. You probably don't want to wait any later than that or else your flax may not have a chance to fully mature. You can get started a little bit earlier by starting your flax indoors.

Last Frost Date

On average all chance of frost has passed is on February 15 in Vallejo. It might get as low as 25°F during the coldest months of winter.

Remember that USDA zone info for Vallejo is just an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Vallejo you get surprised by a frost after February 15 so make sure that you are prepared to protect your flax if you have a late frost.

USDA Zone Info for Vallejo

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 Vallejo

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