One of the first steps you take when you are making a decision about your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can determine when it's the best time to plant dallas fern in Silvis by looking at the USDA zone info.

Planting Calendar for Dallas Fern

Frost tolerance for dallas fern:	Not tolerant of frost.
When to plant:	After the last frost.

Since dallas fern are not cold tolerant you really should wait until after the last frost before you can plant them.

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

Last Frost Date

In Silvis the average date of last frost happens on April 15. In the coldest months of winter you should expect an average low temperature of -15°F.

Since the USDA zone info for Silvis is an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Silvis it frosts late in the year after April 15 be ready to protect your dallas fern if you have a late frost.

USDA Zone Info for Silvis

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 Silvis

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