One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Lake Forest you can determine when it's possible to plant trachelium by looking at the USDA zone info.

Planting Calendar for Trachelium

Frost tolerance for trachelium:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Trachelium require warm weather which tells us that it is necessary to wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant trachelium in Lake Forest 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 trachelium and expect a good harvest is probably September. Any later than that and your trachelium may not have a chance to grow to maturity. If you are starting your trachelium indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

In Lake Forest the average date of last frost happens on January 31. You can expect an average low temperature of 30°F in the coldest months of winter.

Since the USDA zone info for Lake Forest is just an average the actual date of last frost changes from year to year. Since half of the time in Lake Forest it frosts late in the year after January 31 be ready to cover your trachelium if you have a late frost.

USDA Zone Info for Lake Forest

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Lake Forest

You may be interested in your other planting guides for Lake Forest.