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

One way of making a decision about when it's the best time to plant parsnip is to use the USDA zone info for Colton.

Planting Calendar for Parsnip

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

Parsnip are moderately cold tolerant which means that you can plant them earlier than other frost tender plants.

The earliest that you can plant parsnip in Colton 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. If you wait any later than that and your parsnip may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your parsnip indoors.

Last Frost Date

On average the last frost is on February 15 in Colton. It might get as low as 25°F during the coldest months of winter.

Since the USDA zone info for Colton is an average the actual date of last frost is different every year. Half of the time in Colton there is a last frost after February 15 so make sure that you are prepared to cover your parsnip if you have a late frost.

USDA Zone Info for Colton

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 Colton

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