Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Cottonwood you can figure out when you can plant lysimachia 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.

You can plant lysimachia a bit earlier in the year because they do well in moderate cold.

The earliest that you can plant lysimachia in Cottonwood 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 fully mature. Starting your lysimachia indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is March 15 in Cottonwood. In the coldest months of winter you can expect an average low temperature of 15°F.

Just be sure to remember that USDA zone info for Cottonwood is just an average and the actual date of last frost changes from year to year. Since half of the time in Cottonwood there is a last frost after March 15 be ready to protect your lysimachia in the event of a surprise late frost.

USDA Zone Info for Cottonwood

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°F

This means that on a really cold year, the coldest it will get is 15°F. On most years you should be prepared to experience lows near 20°F.

Plants to Grow in Cottonwood

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