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

In Sweet Home you can estimate when it's the best time to plant lemon balm by looking at the USDA zone info.

Planting Calendar for Lemon balm

Frost tolerance for lemon balm:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Lemon balm are barely cold tolerant which means that you can start planting them slightly earlier than more sensitive plants.

The earliest that you can plant lemon balm in Sweet Home is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant lemon balm and expect a good harvest is probably August. If you wait any later than that and your lemon balm may not have a chance to fully mature. If you are starting your lemon balm indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is March 15 in Sweet Home. It might get as low as 15°F during the coldest months of winter.

It's important to remember that USDA zone info for Sweet Home is not always accurate and the actual date of last frost is different every year. Half of the time in Sweet Home there is a last frost after March 15 so be sure to be ready to cover your lemon balm if you have a late frost.

USDA Zone Info for Sweet Home

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 Sweet Home

You may be interested in your other planting guides for Sweet Home.