When to Plant Perilla in Algona, IA

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.

By looking at the USDA zone info for Algona it's possible to determine when you can plant perilla.

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Planting Calendar for Perilla

Frost tolerance for perilla: Not tolerant of frost.
When to plant: After all chance of frost has passed.

Perilla are not cold tolerant which tells us that you need to wait until it warms up after the last frost before you can plant them.

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

The earliest that you can plant perilla in Algona is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant perilla and expect a good harvest is probably August. If you wait any later than that and your perilla may not have a chance to really do well. You can get started a couple of weeks earlier by starting your perilla indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Algona. In the coldest months of winter you should expect an average low temperature of -20°F.

Since the USDA zone info for Algona may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Algona last frost occurs after April 15 so be sure to be ready to protect your perilla in the event of 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.