Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Ellensburg should be used to determine when it's the best time to plant celery.

Planting Calendar for Celery

Frost tolerance for celery:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Celery are barely cold tolerant which tells us that you can plant them slightly earlier than more sensitive plants.

The earliest that you can plant celery in Ellensburg is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant celery and expect a good harvest is probably August. If you wait any later than that and your celery may not have a chance to really do well. You can get started a little bit earlier by starting your celery indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Ellensburg. In the coldest months of winter you should expect an average low temperature of -5°F.

It's important to remember that USDA zone info for Ellensburg may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Since half of the time in Ellensburg you get a frost after April 15 be ready to protect your celery if you have a surprise late frost.

USDA Zone Info for Ellensburg

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 Ellensburg

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