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 can estimate when it's the best time to plant liatris in Gladstone by looking at the USDA zone info.

Planting Calendar for Liatris

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

Liatris do well in cold which tells us that you can get them planted much earlier than other plants that might not handle the cold.

The earliest that you can plant liatris in Gladstone 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 liatris and expect a good harvest is probably September. If you wait any later than that and your liatris may not have a chance to really do well. You can get started a couple of weeks earlier by starting your liatris indoors.

Last Frost Date

On average all chance of frost has passed is on March 15 in Gladstone. It might get as low as 15°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Gladstone is not always accurate and the actual date of last frost can change quite a bit from year to year. Half of the time in Gladstone it frosts late in the year after March 15 so be sure to be ready to protect your liatris if you have a surprise late frost.

USDA Zone Info for Gladstone

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 Gladstone

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