The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You should be able to estimate when it's possible to plant lemon grass by using the USDA zone info for Davenport.

Planting Calendar for Lemon grass

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

Lemon grass are barely cold tolerant which means that you can get them planted just a bit earlier than plants that are more sensitive to the cold.

The earliest that you can plant lemon grass in Davenport 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 grass and expect a good harvest is probably August. You probably don't want to wait any later than that or else your lemon grass may not have a chance to fully mature. You can get started a few weeks earlier by starting your lemon grass indoors.

Last Frost Date

On average the last frost is on April 15 in Davenport. It might get as low as -15°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Davenport is an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Davenport last frost occurs after April 15 be ready to cover your lemon grass in the event of a surprise late frost.

USDA Zone Info for Davenport

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 Davenport

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