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

A way of determining when it's possible to plant chicory is to consult the USDA zone info for Pullman.

Planting Calendar for Chicory

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

Chicory do ok in moderate cold which means that you can plant them just a bit earlier in the year than more sensitive plants.

The earliest that you can plant chicory in Pullman 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 chicory and expect a good harvest is probably September. If you wait any later than that and your chicory may not have a chance to fully mature. If you are starting your chicory indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Pullman. You should expect an average low temperature of -5°F in the coldest months of winter.

Remember that USDA zone info for Pullman may not be accurate from year to year and the actual date of last frost will vary from year to year. Half of the time in Pullman you get surprised by a frost after April 15 so be sure to be ready to protect your chicory if you have a late frost.

USDA Zone Info for Pullman

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Pullman

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