Before planting it is a good idea to find your USDA Zone info to determine your garden 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 chance to plant borage in Chaska can be estimated by using the USDA zone info.

Planting Calendar for Borage

Frost tolerance for borage:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Borage can survive in moderate cold which tells us that you can plant them a little earlier in the year than more sensitive plants.

The earliest that you can plant borage in Chaska 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 borage and expect a good harvest is probably August. Any later than that and your borage may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your borage indoors.

Last Frost Date

The average date of last frost is May 15 in Chaska. In the coldest months of winter you can expect an average low temperature of -25°F.

Just be sure to remember that USDA zone info for Chaska is an average and the actual date of last frost will vary from year to year. Since half of the time in Chaska there is a last frost after May 15 be ready to protect your borage in the event of a late frost.

USDA Zone Info for Chaska

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Chaska

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