Before planting it is a good idea to find your USDA Zone info to estimate 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 figure out when to plant pansies by using the USDA zone info for Mount Vernon.

Planting Calendar for Pansies

Frost tolerance for pansies:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Since pansies are very cold tolerant you can plant them earlier in the year than more sensitive plants.

The earliest that you can plant pansies in Mount Vernon 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 pansies and expect a good harvest is probably September. If you wait any later than that and your pansies may not have a chance to really do well. You can get started a little bit earlier by starting your pansies indoors.

Last Frost Date

The average date of last frost is April 15 in Mount Vernon. It might get as low as -15°F during the coldest months of winter.

It's important to remember that USDA zone info for Mount Vernon is an average and the actual date of last frost will vary from year to year. Half of the time in Mount Vernon last frost occurs after April 15 so make sure that you are ready to protect your pansies in the event of a late frost.

USDA Zone Info for Mount Vernon

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Mount Vernon

You may be interested in your other planting guides for Mount Vernon.