Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You should be able to determine when it's possible to plant pincushion flower by using the USDA zone info for Vienna.

Planting Calendar for Pincushion Flower

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

Since pincushion flower are moderately cold tolerant you can plant them a bit earlier in the year than more sensitive plants.

The earliest that you can plant pincushion flower in Vienna 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. If you wait any later than that and your pincushion flower may not have a chance to grow to maturity. If you are starting your pincushion flower indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

In Vienna the average date of last frost happens on April 15. It might get as low as -5°F during the coldest months of winter.

Since the USDA zone info for Vienna is just an average the actual date of last frost will vary from year to year. Half of the time in Vienna you get surprised by a frost after April 15 so be sure to be ready to protect your pincushion flower in the event of a late frost.

USDA Zone Info for Vienna

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 Vienna

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