When to Plant Digitalis in Algona, IA

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.

The first opportunity to plant digitalis in Algona should be determined by looking at the USDA zone info.


Planting Calendar for Digitalis

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

Since digitalis are one of those plants that can tolerate a little bit of cold weather you can plant them a bit earlier in the year than more sensitive plants.

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

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

Last Frost Date

The average date of last frost is April 15 in Algona. In the coldest months of winter you should expect an average low temperature of -20°F.

Keep in mind that the actual date of last frost is just an average because it is based on the USDA zone info for Algona and it changes from year to year. Since half of the time in Algona it frosts late in the year after April 15 be ready to protect your digitalis if you have a late frost.

USDA Zone Info for Algona

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 Algona

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