One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By looking at the USDA zone info for Ripon you will be able to determine when it's possible to plant armeria.

Planting Calendar for Armeria

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

Since armeria do well in cold you can plant them much earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant armeria in Ripon is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant armeria and expect a good harvest is probably October. You probably don't want to wait any later than that or else your armeria may not have a chance to fully mature. Starting your armeria indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Ripon. In the coldest months of winter you can expect an average low temperature of 25°F.

Keep in mind that USDA zone info for Ripon is an average and the actual date of last frost will vary from year to year. Since half of the time in Ripon you get surprised by a frost after February 15 be ready to cover your armeria in the event of a surprise late frost.

USDA Zone Info for Ripon

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Ripon

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