Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A common way of determining when to plant argyranthemum is to refer to the USDA zone info for Ruidoso.

Planting Calendar for Argyranthemum

Frost tolerance for argyranthemum:	Not tolerant of frost.
When to plant:	After the last frost has passed.

Since argyranthemum are not cold tolerant it is necessary to wait until after the last frost has passed before you can plant them.

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

The last month that you can plant argyranthemum and expect a good harvest is probably August. You probably don't want to wait any later than that or else your argyranthemum may not have a chance to really do well. Starting your argyranthemum indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

In Ruidoso the average date of last frost happens on April 15. You can expect an average low temperature of -5°F in the coldest months of winter.

It's important to remember that USDA zone info for Ruidoso is an average and the actual date of last frost will vary from year to year. Half of the time in Ruidoso you get surprised by a frost after April 15 so always be ready to protect your argyranthemum in the event of a late frost.

USDA Zone Info for Ruidoso

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 Ruidoso

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