When to Plant Borage in Milan, MI

Before planting it is a good idea to find your USDA Zone info to figure out 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.

By referring to the USDA zone info for Milan you will be able to determine when it's the best time to plant borage.


Planting Calendar for Borage

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

Since borage do well in moderate cold you can plant them a bit earlier in the year than plants that are more sensitive to the cold.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant borage
Possibly ok, but a risky time to plant borage
Probably not a good time to plant borage

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

The last month that you can plant borage and expect a good harvest is probably September. You probably don't want to wait any later than that or else your borage may not have a chance to really do well. If you are starting your borage indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Milan. You can expect an average low temperature of -10°F in the coldest months of winter.

Remember that the actual date of last frost is just an average because it is based on the USDA zone info for Milan and it changes from year to year. Since half of the time in Milan last frost occurs after April 15 be ready to cover your borage if you have one of those late frosts.

USDA Zone Info for Milan

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-10°F
Highest Expected Low-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Milan

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