One of the first steps you take when you are estimating 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.

It's a good idea to figure out when it's possible to plant pampas grass by looking at the USDA zone info for Romeoville.

Planting Calendar for Pampas Grass

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

You really shouldn't plant pampas grass until after all chance of frost has passed because they do not do well in cold weather.

The earliest that you can plant pampas grass in Romeoville 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 pampas grass and expect a good harvest is probably August. You probably don't want to wait any later than that or else your pampas grass may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your pampas grass indoors.

Last Frost Date

In Romeoville 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 Romeoville 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 Romeoville you get a frost after April 15 so make sure that you are ready to cover your pampas grass if you have one of those late frosts.

USDA Zone Info for Romeoville

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 Romeoville

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