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.

The earliest that you can plant asparagus fern in Warwick can be determined by reviewing the USDA zone info.

Planting Calendar for Asparagus Fern

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

It's probably not a good idea to plant asparagus fern until after the last frost has passed because they require warm weather.

The earliest that you can plant asparagus fern in Warwick 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 asparagus fern and expect a good harvest is probably August. You probably don't want to wait any later than that or else your asparagus fern may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your asparagus fern indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Warwick. In the coldest months of winter you should expect an average low temperature of -5°F.

Keep in mind that the actual date of last frost is not always accurate because it is based on the USDA zone info for Warwick and it changes from year to year. Half of the time in Warwick last frost occurs after April 15 so be sure to be ready to protect your asparagus fern in the event of a late frost.

USDA Zone Info for Warwick

Here is the info for USDA Zone 6b.

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

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

Plants to Grow in Warwick

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