One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A common way of estimating when it's a good idea to plant columbine is to use the USDA zone info for Morrilton.

Planting Calendar for Columbine

Frost tolerance for columbine:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Columbine can survive in mild cold which means that you can plant them a bit earlier in the year than other plants that might not handle the cold.

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

The last month that you can plant columbine and expect a good harvest is probably September. You probably don't want to wait any later than that or else your columbine may not have a chance to fully mature. If you are starting your columbine indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

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

Just be sure to remember that USDA zone info for Morrilton is not always accurate and the actual date of last frost will vary from year to year. Since half of the time in Morrilton you get surprised by a frost after April 15 be ready to cover your columbine in the event of a surprise late frost.

USDA Zone Info for Morrilton

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 Morrilton

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