One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You should be able to figure out when you can plant lobelia by referring to the USDA zone info for Two Rivers.

Planting Calendar for Lobelia

Frost tolerance for lobelia:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Lobelia do well in quite a bit of cold which means that you can plant them much earlier in the year than more sensitive plants.

The earliest that you can plant lobelia in Two Rivers 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 lobelia and expect a good harvest is probably September. You probably don't want to wait any later than that or else your lobelia may not have a chance to fully mature. If you are starting your lobelia indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Two Rivers. It might get as low as -15°F during the coldest months of winter.

It's important to remember that USDA zone info for Two Rivers is just an average and the actual date of last frost is different every year. Since half of the time in Two Rivers it frosts late in the year after April 15 be ready to protect your lobelia in the event of one of those late frosts.

USDA Zone Info for Two Rivers

Here is the info for USDA Zone 5b.

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

Plants to Grow in Two Rivers

You may be interested in your other planting guides for Two Rivers.