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When to Plant Sweet Woodruff in Houghton, MI

One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The earliest that you can plant sweet woodruff in Houghton can be estimated by reviewing the USDA zone info.

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Planting Calendar for Sweet Woodruff

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

Since sweet woodruff are moderately cold tolerant you can plant them a bit earlier in the year than other plants that might not handle the cold.

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

The earliest that you can plant sweet woodruff in Houghton 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 sweet woodruff and expect a good harvest is probably September. You probably don't want to wait any later than that or else your sweet woodruff may not have a chance to fully mature. If you are starting your sweet woodruff indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Houghton. It might get as low as -15°F during the coldest months of winter.

Just be sure to remember 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 Houghton and it changes from year to year. Half of the time in Houghton last frost occurs after April 15 so make sure that you are prepared to cover your sweet woodruff in the event of one of those late frosts.

USDA Zone Info for Houghton

Here is the info for USDA Zone 5b.

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

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Houghton

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