The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

It's a good idea to estimate when it's the best time to plant welsh onion by looking at the USDA zone info for Firebaugh.

Planting Calendar for Welsh onion

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

Welsh onion can survive in some cold which means that you can plant them a bit earlier in the year than other frost tender plants.

The earliest that you can plant welsh onion in Firebaugh 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 welsh onion and expect a good harvest is probably September. Any later than that and your welsh onion may not have a chance to fully mature. You can get started a little bit earlier by starting your welsh onion indoors.

Last Frost Date

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

Since the USDA zone info for Firebaugh is an average the actual date of last frost will vary from year to year. Half of the time in Firebaugh last frost occurs after February 15 so be sure to be ready to cover your welsh onion if you have one of those late frosts.

USDA Zone Info for Firebaugh

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 Firebaugh

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