One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The earliest that you can plant painted tongues in Isanti should be figured out by looking at the USDA zone info.

Planting Calendar for Painted Tongues

Frost tolerance for painted tongues:	Not tolerant of frost.
When to plant:	After the last frost.

It's probably not a good idea to plant painted tongues until after the last frost when the weather gets warmer because they are not cold tolerant.

The earliest that you can plant painted tongues in Isanti 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 painted tongues and expect a good harvest is probably August. You probably don't want to wait any later than that or else your painted tongues may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your painted tongues indoors.

Last Frost Date

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

Keep in mind that the actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Isanti and it changes from year to year. Since half of the time in Isanti last frost occurs after May 15 be ready to cover your painted tongues in the event of a surprise late frost.

USDA Zone Info for Isanti

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 Isanti

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