When can I plant Lysimachia in Zone 2b

One of the best tools that we have as gardeners to help us figure out our 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 our area.

In Zone 2b you can determine when it's the best time to plant lysimachia by looking at the USDA zone info.


Planting Calendar for Lysimachia

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

Lysimachia tend to make it in a little bit of cold which tells us that you can plant them a little bit earlier in the year than other plants that might not handle the cold.

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 Zone 2b is April. However, you really should wait until May 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. Any later than that and your lysimachia may not have a chance to fully mature. If you are starting your lysimachia indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

In Zone 2b the average date of last frost happens on May 15. We can expect an average low temperature of -45°F in the coldest months of winter.

Since the USDA zone info for Zone 2b may not be accurate from year to year our actual date of last frost will vary from year to year. Half of the time in Zone 2b it frosts late in the year after May 15 so make sure that you are prepared to cover your lysimachia in the event of a surprise late frost.

USDA Zone Info for Zone 2b

Here is the info for USDA Zone 2b.

Average Date of Last Frost (spring)May 15
Average Date of First Frost (fall)August 15
Lowest Expected Low-45°F
Highest Expected Low-40°F

This means that on a really cold year, the coldest it will get is -45°F. On most years you should be prepared to experience lows near -40°F.

Plants to Grow in Zone 2b

You may be interested in our other planting guides for Zone 2b.