One of the first steps you take when you are determining your gardening schedule is find your 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.

A way of getting a good idea when to plant endive is to refer to the USDA zone info for Ripon.

Planting Calendar for Endive

Frost tolerance for endive:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Endive do well in moderate cold which means that you can plant them a little earlier in the year than other plants that might not handle the cold.

The earliest that you can plant endive in Ripon 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 endive and expect a good harvest is probably October. Any later than that and your endive may not have a chance to grow to maturity. Starting your endive indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average the last frost has passed is on February 15 in Ripon. You can expect an average low temperature of 25°F in the coldest months of winter.

Since the USDA zone info for Ripon is an average the actual date of last frost changes from year to year. Since half of the time in Ripon there is a last frost after February 15 be ready to protect your endive in the event of a surprise late frost.

USDA Zone Info for Ripon

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 Ripon

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