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.

In Richland you can figure out when to plant xerianthemum by using the USDA zone info.

Planting Calendar for Xerianthemum

Frost tolerance for xerianthemum:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

You can plant xerianthemum just a tiny bit earlier in the year because they do ok in moderate cold.

The earliest that you can plant xerianthemum in Richland is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant xerianthemum and expect a good harvest is probably August. If you wait any later than that and your xerianthemum may not have a chance to fully mature. You can get started a little bit earlier by starting your xerianthemum indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Richland. In the coldest months of winter you can expect an average low temperature of 0°F.

Always keep in mind that USDA zone info for Richland is not always accurate and the actual date of last frost changes from year to year. Half of the time in Richland there is a last frost after April 15 so make sure that you are prepared to cover your xerianthemum if you have one of those late frosts.

USDA Zone Info for Richland

Here is the info for USDA Zone 7a.

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

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

Plants to Grow in Richland

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