The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By using the USDA zone info for Dunkirk you will be able to figure out when you can plant twinspur.

Planting Calendar for Twinspur

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

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

The earliest that you can plant twinspur in Dunkirk 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 twinspur and expect a good harvest is probably September. If you wait any later than that and your twinspur may not have a chance to grow to maturity. If you are starting your twinspur indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Dunkirk. In the coldest months of winter you can expect an average low temperature of -5°F.

Since the USDA zone info for Dunkirk is an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Dunkirk there is a last frost after April 15 be ready to cover your twinspur in the event of a surprise late frost.

USDA Zone Info for Dunkirk

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Dunkirk

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