One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can figure out when you can plant armeria in Warrenton by using the USDA zone info.

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 a lot earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant armeria in Warrenton 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 really do well. You can get started a few weeks earlier by starting your armeria indoors.

Last Frost Date

On average the last frost has passed is on February 15 in Warrenton. You can expect an average low temperature of 20°F in the coldest months of winter.

Keep in mind that USDA zone info for Warrenton is an average and the actual date of last frost is different every year. Half of the time in Warrenton you get surprised by a frost after February 15 so make sure that you are prepared to cover your armeria if you have a surprise late frost.

USDA Zone Info for Warrenton

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 Warrenton

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