The USDA Zone info is a great tool for gardeners to help us estimate 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.

A way of making a decision about when to plant lemon grass is to examine the USDA zone info for Roseburg.

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.

Since lemon grass are barely cold tolerant you can plant them just a tiny bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant lemon grass in Roseburg 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 lemon grass and expect a good harvest is probably September. Any later than that and your lemon grass may not have a chance to really do well. You can get started a few weeks earlier by starting your lemon grass indoors.

Last Frost Date

The average date of last frost is February 15 in Roseburg. In the coldest months of winter you should expect an average low temperature of 20°F.

Keep in mind that the actual date of last frost is not always accurate because it is based on the USDA zone info for Roseburg and it changes from year to year. Half of the time in Roseburg you get a frost after February 15 so always be ready to cover your lemon grass if you have a late frost.

USDA Zone Info for Roseburg

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Roseburg

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