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When to Plant Lysimachia in Cottage Grove, MN

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.

A common way of making a decision about when it's a good idea to plant lysimachia is to check out the USDA zone info for Cottage Grove.

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Planting Calendar for Lysimachia

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

Since lysimachia are one of those plants that can tolerate a little bit of cold weather you can plant them a little earlier in the year than more sensitive plants.

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

The earliest that you can plant lysimachia in Cottage Grove 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 lysimachia and expect a good harvest is probably August. You probably don't want to wait any later than that or else your lysimachia may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your lysimachia indoors.

Last Frost Date

On average the last frost has passed is on May 15 in Cottage Grove. It might get as low as -25°F during the coldest months of winter.

Keep in mind that the actual date of last frost is an average because it is based on the USDA zone info for Cottage Grove and it can change quite a bit from year to year. Since half of the time in Cottage Grove there is a last frost after May 15 be ready to cover your lysimachia if you have a surprise late frost.

USDA Zone Info for Cottage Grove

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 Cottage Grove

You may be interested in your other planting guides for Cottage Grove.