The USDA Zone info is a great tool for gardeners to help us estimate 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.

One way of determining when it's a good idea to plant monkey flower is to refer to the USDA zone info for Mount Vernon.

Planting Calendar for Monkey Flower

Frost tolerance for monkey flower:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

Since monkey flower require warm weather it is necessary to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant monkey flower in Mount Vernon is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant monkey flower and expect a good harvest is probably August. You probably don't want to wait any later than that or else your monkey flower may not have a chance to fully mature. Starting your monkey flower indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average all chance of frost has passed is on April 15 in Mount Vernon. In the coldest months of winter you can expect an average low temperature of -5°F.

Keep in mind that USDA zone info for Mount Vernon may not be accurate from year to year and the actual date of last frost changes from year to year. Half of the time in Mount Vernon you get a frost after April 15 so make sure that you are prepared to protect your monkey flower if you have one of those late frosts.

USDA Zone Info for Mount Vernon

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 Mount Vernon

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