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.

The USDA zone info for Grand Forks can be reviewed to estimate when it's the best time to plant monkey flower.

Planting Calendar for Monkey Flower

Frost tolerance for monkey flower:	Not tolerant of frost.
When to plant:	After the last frost.

It's probably a bad idea to plant monkey flower until after all chance of frost has passed because they are not cold tolerant.

The earliest that you can plant monkey flower in Grand Forks is May. However, you really should wait until June 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 grow to maturity. You can get started a little bit earlier by starting your monkey flower indoors.

Last Frost Date

On average the last frost has passed is on May 15 in Grand Forks. You can expect an average low temperature of -30°F in the coldest months of winter.

It's important to remember that the actual date of last frost is just an average because it is based on the USDA zone info for Grand Forks and it will vary from year to year. Since half of the time in Grand Forks it frosts late in the year after May 15 be ready to protect your monkey flower if you have a late frost.

USDA Zone Info for Grand Forks

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-30°F
Highest Expected Low	-25°F

This means that on a really cold year, the coldest it will get is -30°F. On most years you should be prepared to experience lows near -25°F.

Plants to Grow in Grand Forks

You may be interested in your other planting guides for Grand Forks.