The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The best time to plant onions in Buena Park can be figured out by reviewing the USDA zone info.

Planting Calendar for Onions

Frost tolerance for onions:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Since onions are very cold tolerant you can plant them much earlier in the year than more sensitive plants.

The earliest that you can plant onions in Buena Park 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 onions and expect a good harvest is probably October. Any later than that and your onions may not have a chance to grow to maturity. Starting your onions indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average all chance of frost has passed is on January 31 in Buena Park. You can expect an average low temperature of 35°F in the coldest months of winter.

Since the USDA zone info for Buena Park is not always accurate the actual date of last frost is different every year. Since half of the time in Buena Park you get surprised by a frost after January 31 be ready to protect your onions in the event of one of those late frosts.

USDA Zone Info for Buena Park

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	35°F
Highest Expected Low	40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in Buena Park

You may be interested in your other planting guides for Buena Park.