Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Hemet should be reviewed to estimate when to plant onions.

Planting Calendar for Onions

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

Since onions do well in cold you can plant them earlier in the year than other plants that might not handle the cold.

The earliest that you can plant onions in Hemet 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. If you wait any later than that and your onions may not have a chance to really do well. You can get started a couple of weeks earlier by starting your onions indoors.

Last Frost Date

On average all chance of frost has passed is on February 15 in Hemet. In the coldest months of winter you can expect an average low temperature of 20°F.

Just be sure to remember that USDA zone info for Hemet is just an average and the actual date of last frost will vary from year to year. Half of the time in Hemet you get surprised by a frost after February 15 so just be sure to be ready to protect your onions in the event of one of those late frosts.

USDA Zone Info for Hemet

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Hemet

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