When can I plant Twinspur in Zone 6a

One of the first steps we take when we are getting a good idea our gardening schedule is find our USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for our area.

The first chance to plant twinspur in Zone 6a can be determined by using the USDA zone info.


Planting Calendar for Twinspur

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

You can plant twinspur a little earlier in the year because they are moderately cold tolerant.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant twinspur
Possibly ok, but a risky time to plant twinspur
Probably not a good time to plant twinspur

The earliest that you can plant twinspur in Zone 6a 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 fully mature. Starting your twinspur indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Zone 6a. In the coldest months of winter we can expect an average low temperature of -10°F.

Just be sure to remember that our actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Zone 6a and it will vary from year to year. Since half of the time in Zone 6a it frosts late in the year after April 15 be ready to cover your twinspur if we have one of those late frosts.

USDA Zone Info for Zone 6a

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 Zone 6a

You may be interested in our other planting guides for Zone 6a.