When to Plant Violas in Orange City, IA

Before planting it is a good idea to find your USDA Zone info to determine your garden 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 Orange City can be reffered to in order to determine when it's the best time 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.

You can plant violas much earlier in the year because they do well in cold.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant violas
Possibly ok, but a risky time to plant violas
Probably not a good time to plant violas

The earliest that you can plant violas in Orange City 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. You probably don't want to wait any later than that or else your violas may not have a chance to grow to maturity. If you are starting your violas indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

In Orange City the average date of last frost happens on April 15. You should expect an average low temperature of -20°F in the coldest months of winter.

Since the USDA zone info for Orange City is just an average the actual date of last frost changes from year to year. Half of the time in Orange City it frosts late in the year after April 15 so just be sure to be ready to protect your violas if you have a surprise late frost.

USDA Zone Info for Orange City

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-20°F
Highest Expected Low-15°F

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

Plants to Grow in Orange City

You may be interested in your other planting guides for Orange City.