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.

In Grafton you can determine when you can plant monkey flower by checking out the USDA zone info.

Planting Calendar for Monkey Flower

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

Monkey Flower are not cold tolerant which means that you need to wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant monkey flower in Grafton 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. Any later than that and your monkey flower may not have a chance to fully mature. If you are starting your monkey flower indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average all chance of frost has passed is on April 15 in Grafton. You should expect an average low temperature of -10°F in the coldest months of winter.

Since the USDA zone info for Grafton may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Grafton you get a frost after April 15 so be sure to be ready to protect your monkey flower if you have a surprise late frost.

USDA Zone Info for Grafton

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Grafton

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