One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A way of getting a good idea when to plant parsnip is to examine the USDA zone info for Longview.

Planting Calendar for Parsnip

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

Since parsnip do well in moderate cold you can plant them a little bit earlier in the year than other frost tender plants.

The earliest that you can plant parsnip in Longview 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 parsnip and expect a good harvest is probably September. 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

In Longview the average date of last frost happens on March 15. You should expect an average low temperature of 15°F in the coldest months of winter.

Keep in mind that USDA zone info for Longview is just an average and the actual date of last frost changes from year to year. Half of the time in Longview you get a frost after March 15 so just be sure to be ready to protect your parsnip in the event of a surprise late frost.

USDA Zone Info for Longview

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°F

This means that on a really cold year, the coldest it will get is 15°F. On most years you should be prepared to experience lows near 20°F.

Plants to Grow in Longview

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