The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first chance to plant lysimachia in Northfield should be estimated by referring to the USDA zone info.

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 bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant lysimachia in Northfield 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. Any later than that and your lysimachia may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your lysimachia indoors.

Last Frost Date

On average the last frost is on April 15 in Northfield. You can expect an average low temperature of 0°F in the coldest months of winter.

Since the USDA zone info for Northfield may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Half of the time in Northfield you get a frost after April 15 so make sure that you are ready to cover your lysimachia if you have a late frost.

USDA Zone Info for Northfield

Here is the info for USDA Zone 7a.

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

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

Plants to Grow in Northfield

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