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.

The USDA zone info for Gridley can be reffered to in order to estimate when to plant parsnip.

Planting Calendar for Parsnip

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

Parsnip do ok in some cold which means that you can plant them just a bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant parsnip in Gridley 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 parsnip and expect a good harvest is probably October. You probably don't want to wait any later than that or else your parsnip may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your parsnip indoors.

Last Frost Date

The average date of last frost is February 15 in Gridley. You should expect an average low temperature of 25°F in the coldest months of winter.

Since the USDA zone info for Gridley is not always accurate the actual date of last frost can change quite a bit from year to year. Since half of the time in Gridley last frost occurs after February 15 be ready to protect your parsnip in the event of one of those late frosts.

USDA Zone Info for Gridley

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 Gridley

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