Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Los Fresnos you can estimate when you can plant bunching onions by looking at the USDA zone info.

Planting Calendar for Bunching Onions

Frost tolerance for bunching onions:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Bunching Onions tend to make it in very little cold which tells us that you can plant them a bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant bunching onions in Los Fresnos is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant bunching onions and expect a good harvest is probably September. You probably don't want to wait any later than that or else your bunching onions may not have a chance to grow to maturity. Starting your bunching onions indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is January 31 in Los Fresnos. You can expect an average low temperature of 30°F in the coldest months of winter.

Keep in mind that USDA zone info for Los Fresnos is not always accurate and the actual date of last frost can change quite a bit from year to year. Since half of the time in Los Fresnos it frosts late in the year after January 31 be ready to cover your bunching onions in the event of one of those late frosts.

USDA Zone Info for Los Fresnos

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Los Fresnos

You may be interested in your other planting guides for Los Fresnos.