One of the best tools that you have as gardeners to help us estimate 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.

In Hopatcong you can determine when to plant lysimachia by using 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.

You can plant lysimachia a little bit earlier in the year because they are one of those plants that can tolerate a little bit of cold weather.

The earliest that you can plant lysimachia in Hopatcong 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. If you wait any later than that and your lysimachia may not have a chance to really do well. You can get started a couple of weeks earlier by starting your lysimachia indoors.

Last Frost Date

The average date of last frost is April 15 in Hopatcong. In the coldest months of winter you can expect an average low temperature of -10°F.

Since the USDA zone info for Hopatcong is just an average the actual date of last frost is different every year. Half of the time in Hopatcong last frost occurs after April 15 so make sure that you are prepared to protect your lysimachia if you have one of those late frosts.

USDA Zone Info for Hopatcong

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Hopatcong

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