When to Plant Pincushion Flower in Denison, IA

The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The first chance to plant pincushion flower in Denison can be figured out by looking at the USDA zone info.


Planting Calendar for Pincushion Flower

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

Pincushion Flower do well in moderate cold which means that you can plant them a little earlier in the year than more sensitive plants.

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

The earliest that you can plant pincushion flower in Denison 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 pincushion flower and expect a good harvest is probably September. You probably don't want to wait any later than that or else your pincushion flower may not have a chance to fully mature. You can get started a little bit earlier by starting your pincushion flower indoors.

Last Frost Date

In Denison the average date of last frost happens on April 15. You can expect an average low temperature of -20°F in the coldest months of winter.

Since the USDA zone info for Denison may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Since half of the time in Denison it frosts late in the year after April 15 be ready to protect your pincushion flower if you have a surprise late frost.

USDA Zone Info for Denison

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-20°F
Highest Expected Low-15°F

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

Plants to Grow in Denison

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