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.

The USDA zone info for Adel can be used to determine when to plant violas.

Planting Calendar for Violas

Frost tolerance for violas:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Violas do well in cold which tells us that you can start planting them much earlier than more sensitive plants.

The earliest that you can plant violas in Adel 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 violas and expect a good harvest is probably September. If you wait any later than that and your violas may not have a chance to really do well. Starting your violas indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average all chance of frost has passed is on March 15 in Adel. You should expect an average low temperature of 15°F in the coldest months of winter.

Remember that USDA zone info for Adel is an average and the actual date of last frost will vary from year to year. Half of the time in Adel it frosts late in the year after March 15 so be sure to be ready to protect your violas in the event of a surprise late frost.

USDA Zone Info for Adel

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°F

This means that on a really cold year, the coldest it will get is 15°F. On most years you should be prepared to experience lows near 20°F.

Plants to Grow in Adel

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