One of the first steps you take when you are figuring out your gardening schedule is find your 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.

You will be able to determine when it's a good idea to plant lysimachia by referring to the USDA zone info for Berwick.

Planting Calendar for Lysimachia

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

You can plant lysimachia just a bit earlier in the year because they are moderately cold tolerant.

The earliest that you can plant lysimachia in Berwick 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 lysimachia and expect a good harvest is probably September. You probably don't want to wait any later than that or else your lysimachia may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your lysimachia indoors.

Last Frost Date

The average date of last frost is April 15 in Berwick. You can expect an average low temperature of -5°F in the coldest months of winter.

It's important to remember that USDA zone info for Berwick is an average and the actual date of last frost will vary from year to year. Half of the time in Berwick it frosts late in the year after April 15 so be sure to be ready to cover your lysimachia in the event of a late frost.

USDA Zone Info for Berwick

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Berwick

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