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

In El Cajon you can estimate when it's the best time to plant snow-in summer by checking out the USDA zone info.

Planting Calendar for Snow-in Summer

Frost tolerance for snow-in summer:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Snow-in Summer can survive in moderate cold which means that you can plant them a little earlier in the year than other frost tender plants.

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

Last Frost Date

On average the last frost when the weather gets warmer is on January 31 in El Cajon. In the coldest months of winter you can expect an average low temperature of 30°F.

Since the USDA zone info for El Cajon may not be accurate from year to year the actual date of last frost is different every year. Half of the time in El Cajon you get surprised by a frost after January 31 so make sure that you are ready to cover your snow-in summer in the event of a surprise late frost.

USDA Zone Info for El Cajon

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 El Cajon

You may be interested in your other planting guides for El Cajon.