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 determining when it's the best time to plant armeria is to check out the USDA zone info for Joplin.

Planting Calendar for Armeria

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

Since armeria are one of those plants that can tolerate quite a bit of cold weather you can plant them a lot earlier in the year than other plants that might not handle the cold.

The earliest that you can plant armeria in Joplin 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 armeria and expect a good harvest is probably September. You probably don't want to wait any later than that or else your armeria may not have a chance to grow to maturity. If you are starting your armeria indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average all chance of frost has passed is on April 15 in Joplin. You can expect an average low temperature of -5°F in the coldest months of winter.

Since the USDA zone info for Joplin is an average the actual date of last frost will vary from year to year. Half of the time in Joplin you get a frost after April 15 so be sure to be ready to protect your armeria in the event of a late frost.

USDA Zone Info for Joplin

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Joplin

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