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.

The USDA zone info for Altus should be read to figure out when it's a good idea to plant chrysanthemums.

Planting Calendar for Chrysanthemums

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

Chrysanthemums are one of those plants that can tolerate a tiny bit of cold weather which tells us that you can plant them slightly earlier than more sensitive plants.

The earliest that you can plant chrysanthemums in Altus 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 chrysanthemums and expect a good harvest is probably August. Any later than that and your chrysanthemums may not have a chance to fully mature. You can get started a little bit earlier by starting your chrysanthemums indoors.

Last Frost Date

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

Just be sure to remember that USDA zone info for Altus is just an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Altus you get surprised by a frost after April 15 be ready to cover your chrysanthemums in the event of a late frost.

USDA Zone Info for Altus

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	5°F
Highest Expected Low	10°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 10°F.

Plants to Grow in Altus

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