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

In Aberdeen you can estimate when it's possible to plant twinspur by referring to the USDA zone info.

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

The earliest that you can plant twinspur in Aberdeen is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant twinspur and expect a good harvest is probably August. 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 couple of weeks earlier.

Last Frost Date

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

Since the USDA zone info for Aberdeen is not always accurate the actual date of last frost will vary from year to year. Half of the time in Aberdeen it frosts late in the year after May 15 so just be sure to be ready to cover your twinspur in the event of one of those late frosts.

USDA Zone Info for Aberdeen

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°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 -20°F.

Plants to Grow in Aberdeen

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