One of the best tools that you have as gardeners to help us figure out 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 earliest that you can plant steirodiscus in Pella should be figured out by reviewing the USDA zone info.

Planting Calendar for Steirodiscus

Frost tolerance for steirodiscus:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Since steirodiscus are barely cold tolerant you can plant them just a tiny bit earlier in the year than plants that are more sensitive to the cold.

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

The last month that you can plant steirodiscus and expect a good harvest is probably August. Any later than that and your steirodiscus may not have a chance to grow to maturity. If you are starting your steirodiscus indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Pella. In the coldest months of winter you can expect an average low temperature of -15°F.

Since the USDA zone info for Pella may not be accurate from year to year the actual date of last frost will vary from year to year. Half of the time in Pella last frost occurs after April 15 so just be sure to be ready to protect your steirodiscus if you have a late frost.

USDA Zone Info for Pella

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°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 -10°F.

Plants to Grow in Pella

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