The USDA Zone info is a great tool for gardeners to help us determine your gardening 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 Upland can be looked at to estimate when it's a good idea to plant chinese celery.

Planting Calendar for Chinese celery

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

Chinese celery are one of those plants that can tolerate a tiny bit of cold weather which tells us that you can get them planted just a bit earlier than other frost tender plants.

The earliest that you can plant chinese celery in Upland 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 chinese celery and expect a good harvest is probably September. If you wait any later than that and your chinese celery may not have a chance to grow to maturity. Starting your chinese celery indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is January 31 in Upland. In the coldest months of winter you should expect an average low temperature of 30°F.

It's important to remember that USDA zone info for Upland may not be accurate from year to year and the actual date of last frost changes from year to year. Half of the time in Upland it frosts late in the year after January 31 so be sure to be ready to cover your chinese celery in the event of one of those late frosts.

USDA Zone Info for Upland

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 Upland

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