One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The earliest that you can plant parsnip in Blue Island should be figured out by looking at the USDA zone info.

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 moderate cold which tells us that you can plant them a little bit earlier in the year than other frost tender plants.

The earliest that you can plant parsnip in Blue Island 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. If you are starting your parsnip indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Blue Island. It might get as low as -10°F during the coldest months of winter.

Remember that USDA zone info for Blue Island may not be accurate from year to year and the actual date of last frost is different every year. Half of the time in Blue Island you get a frost after April 15 so be sure to be ready to protect your parsnip if you have a late frost.

USDA Zone Info for Blue Island

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Blue Island

You may be interested in your other planting guides for Blue Island.