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

The first opportunity to plant larkspur in Brainerd should be determined by looking at the USDA zone info.

Planting Calendar for Larkspur

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

Since larkspur do well in cold you can plant them much earlier in the year than other frost tender plants.

The earliest that you can plant larkspur in Brainerd is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant larkspur and expect a good harvest is probably August. Any later than that and your larkspur may not have a chance to fully mature. If you are starting your larkspur indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

On average all chance of frost has passed is on May 15 in Brainerd. It might get as low as -35°F during the coldest months of winter.

Keep in mind that USDA zone info for Brainerd is not always accurate and the actual date of last frost will vary from year to year. Half of the time in Brainerd there is a last frost after May 15 so make sure that you are prepared to cover your larkspur in the event of a surprise late frost.

USDA Zone Info for Brainerd

Here is the info for USDA Zone 3b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-35°F
Highest Expected Low	-30°F

This means that on a really cold year, the coldest it will get is -35°F. On most years you should be prepared to experience lows near -30°F.

Plants to Grow in Brainerd

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