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.

It's possible to estimate when to plant nemesia by reviewing the USDA zone info for Grand Forks.

Planting Calendar for Nemesia

Frost tolerance for nemesia:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

It's not a good idea to plant nemesia until after all chance of frost has passed because they are not cold tolerant.

The earliest that you can plant nemesia 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 nemesia and expect a good harvest is probably August. You probably don't want to wait any later than that or else your nemesia may not have a chance to grow to maturity. Starting your nemesia indoors is a great way to get them started a few weeks earlier.

Last Frost Date

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

Just be sure to remember that USDA zone info for Grand Forks may not be accurate from year to year and the actual date of last frost will vary from year to year. Half of the time in Grand Forks there is a last frost after May 15 so always be ready to cover your nemesia in the event of a surprise 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.