When to plant Asparagus in Pennsylvania

In spring, from Feb 15 – Mar 20 in Chester to Apr 10 – 30 in St. Marys.

For a fall crop, from Oct 20 – Nov 15 in Berwick to Dec 1 – Jan 1 in Yeadon.

Dates are for setting out plants. USDA's earliest safe spring and latest safe fall planting dates, matched to each place's average frost dates.

Asparagus planting dates by place in Pennsylvania
Place	Spring	Fall
Allentown	Mar 15 – Apr 15	Nov 1 – Dec 15Soon
Altoona	Mar 15 – Apr 15	Nov 1 – Dec 15Soon
Baldwin	Mar 15 – Apr 15	Nov 15 – Jan 1Soon
Berwick	Mar 20 – Apr 15	Oct 20 – Nov 15Now
Bethel Park	Mar 15 – Apr 15	Nov 15 – Jan 1Soon
Bethlehem	Mar 15 – Apr 15	Nov 1 – Dec 15Soon
Bloomsburg	Mar 20 – Apr 15	Nov 1 – Dec 15Soon
Butler	Apr 10 – 30	Oct 20 – Nov 15Now
Carlisle	Mar 15 – Apr 15	Nov 1 – Dec 15Soon
Chambersburg	Mar 15 – Apr 15	Nov 1 – Dec 15Soon
Chester	Feb 15 – Mar 20	Not listed
Coatesville	Mar 15 – Apr 15	Nov 1 – Dec 15Soon
Columbia	Mar 20 – Apr 15	Oct 20 – Nov 15Now
Darby	Feb 15 – Mar 20	Dec 1 – Jan 1Soon
Dunmore	Mar 15 – Apr 15	Nov 1 – Dec 15Soon
Easton	Mar 15 – Apr 15	Nov 1 – Dec 15Soon
Elizabethtown	Mar 10 – Apr 10	Nov 15 – Jan 1Soon
Emmaus	Mar 15 – Apr 15	Nov 1 – Dec 15Soon
Ephrata	Mar 15 – Apr 15	Nov 1 – Dec 15Soon
Erie	Mar 20 – Apr 15	Nov 15 – Jan 1Soon
Franklin Park	Mar 15 – Apr 15	Nov 15 – Jan 1Soon
Greensburg	Mar 20 – Apr 15	Oct 20 – Nov 15Now
Hanover	Mar 15 – Apr 15	Nov 1 – Dec 15Soon
Harrisburg	Mar 10 – Apr 10	Nov 1 – Dec 15Soon
Hazleton	Mar 20 – Apr 15	Nov 1 – Dec 15Soon
Hermitage	Apr 10 – 30	Not listed
Indiana	Apr 10 – 30	Oct 20 – Nov 15Now
Jefferson Hills	Mar 15 – Apr 15	Nov 15 – Jan 1Soon
Johnstown	Mar 20 – Apr 15	Nov 1 – Dec 15Soon
Kingston	Mar 15 – Apr 15	Nov 1 – Dec 15Soon
Lancaster	Mar 15 – Apr 15	Nov 1 – Dec 15Soon
Lansdale	Mar 10 – Apr 10	Nov 15 – Jan 1Soon
Lansdowne	Feb 15 – Mar 20	Dec 1 – Jan 1Soon
Lebanon	Mar 15 – Apr 15	Nov 1 – Dec 15Soon
Lower Burrell	Mar 15 – Apr 15	Nov 15 – Jan 1Soon
McKeesport	Mar 20 – Apr 15	Nov 1 – Dec 15Soon
Meadville	Mar 20 – Apr 15	Nov 1 – Dec 15Soon
Mechanicsburg	Mar 10 – Apr 10	Nov 15 – Jan 1Soon
Monroeville	Mar 15 – Apr 15	Nov 1 – Dec 15Soon
Munhall	Mar 10 – Apr 10	Dec 1 – Jan 1Soon
Murrysville	Mar 15 – Apr 15	Nov 1 – Dec 15Soon
Nanticoke	Apr 10 – 30	Oct 20 – Nov 15Now
New Castle	Mar 20 – Apr 15	Nov 1 – Dec 15Soon
New Kensington	Mar 15 – Apr 15	Nov 15 – Jan 1Soon
Norristown	Mar 10 – Apr 10	Nov 15 – Jan 1Soon
Northampton	Mar 15 – Apr 15	Nov 1 – Dec 15Soon
Philadelphia	Feb 15 – Mar 20	Not listed
Phoenixville	Mar 15 – Apr 15	Nov 15 – Jan 1Soon
Pittsburgh	Mar 15 – Apr 15	Nov 15 – Jan 1Soon
Plum	Mar 15 – Apr 15	Nov 15 – Jan 1Soon
Pottstown	Mar 15 – Apr 15	Nov 1 – Dec 15Soon
Pottsville	Mar 20 – Apr 15	Nov 1 – Dec 15Soon
Reading	Mar 10 – Apr 10	Nov 15 – Jan 1Soon
Scranton	Mar 15 – Apr 15	Nov 1 – Dec 15Soon
Sharon	Mar 20 – Apr 15	Nov 1 – Dec 15Soon
St. Marys	Apr 10 – 30	Oct 20 – Nov 15Now
State College	Mar 15 – Apr 15	Nov 15 – Jan 1Soon
Washington	Mar 15 – Apr 15	Nov 1 – Dec 15Soon
Waynesboro	Mar 15 – Apr 15	Nov 1 – Dec 15Soon
West Chester	Mar 20 – Apr 15	Nov 1 – Dec 15Soon
West Mifflin	Mar 15 – Apr 15	Nov 15 – Jan 1Soon
Whitehall	Mar 15 – Apr 15	Nov 15 – Jan 1Soon
Wilkes-Barre	Mar 15 – Apr 15	Nov 1 – Dec 15Soon
Wilkinsburg	Mar 10 – Apr 10	Dec 1 – Jan 1Soon
Williamsport	Mar 15 – Apr 15	Nov 1 – Dec 15Soon
Wyomissing	Mar 10 – Apr 10	Nov 15 – Jan 1Soon
Yeadon	Feb 15 – Mar 20	Dec 1 – Jan 1Soon
York	Mar 20 – Apr 15	Nov 1 – Dec 15Soon

Planting dates: USDA Home and Garden Bulletin No. 9 (1967), tables 4 and 5. Frost dates: NOAA U.S. Climate Normals 1991–2020. The full USDA table for asparagus.