The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A common way of determining when it's the best time to plant hosta is to look at the USDA zone info for Roselle Park.

Planting Calendar for Hosta

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

You can plant hosta a bit earlier in the year because they are moderately cold tolerant.

The earliest that you can plant hosta in Roselle Park 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 hosta and expect a good harvest is probably September. Any later than that and your hosta may not have a chance to grow to maturity. If you are starting your hosta indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

In Roselle Park the average date of last frost happens on April 15. You can expect an average low temperature of 0°F in the coldest months of winter.

Since the USDA zone info for Roselle Park is just an average the actual date of last frost changes from year to year. Since half of the time in Roselle Park you get a frost after April 15 be ready to cover your hosta in the event of a late frost.

USDA Zone Info for Roselle Park

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Roselle Park

You may be interested in your other planting guides for Roselle Park.