Planting timing · Perennial
When to plant asparagus
Plant asparagus on the cited sheets — not on a national calendar month. Regional dates stay source-specific.
Growing guidance is general information. Timing, spacing, and care depend on cultivar, weather, soil, and local conditions. Check the sources and adjust the plan for your garden.
Spacing lives on the asparagus hub. Timing stays on the cited sheets.
Types and spacing live on growing asparagus.
What the sources say — at a glance
One source per card. Facts are not averaged.
Clemson HGIC 1300 (South Carolina)
Piedmont March 1 to April 15. Coastal February 1 to March 15. Crown planting dates. South Carolina regions only.
Details and limits (2)
When
Clemson HGIC 1300 (South Carolina): Piedmont March 1 to April 15. Coastal February 1 to March 15. Planting dates for crowns. South Carolina regions — not a national plant date.
Limit
South Carolina HGIC 1300. Piedmont and Coastal dates stay on this sheet. Not one BioArva calendar and not a ZIP tool.
Maryland Extension (Maryland)
One-year crowns in early spring. Usually shipped and set out in March or April.
Details and limits (2)
When
Maryland Extension (Maryland): one-year crowns in early spring. Crowns are usually shipped and set out in March or April. Maryland timing — not a national plant date.
Limit
Maryland asparagus sheet. March or April stays Maryland. Not one BioArva calendar and not a ZIP tool.
Maryland Extension calendar (Maryland)
Mid-March through mid-April: seedlings or purchased bare-root crowns in the ground.
Details and limits (2)
When
Maryland Extension (Maryland): mid-March through mid-April, plant seedlings or purchased bare-root crowns in the ground. Maryland calendar — not a ZIP tool.
Limit
Maryland vegetable planting calendar. Mid-March through mid-April stays Maryland. Not one BioArva calendar and not a ZIP tool.
UMN Extension (Minnesota)
Planted between early May and early June.
Details and limits (2)
When
UMN Extension (Minnesota): asparagus is planted between early May and early June. Minnesota timing — not a national plant date.
Limit
Minnesota growing-asparagus sheet. Early May to early June stays Minnesota. Not one BioArva calendar and not a ZIP tool.
Illinois Extension (Illinois)
As soon as the ground can be worked in the spring.
Details and limits (2)
When
Illinois Extension (Illinois): asparagus should be planted as soon as the ground can be worked in the spring. Illinois timing — not a national plant date.
Limit
Illinois asparagus page. Workable-ground timing stays Illinois. Not one BioArva calendar and not a ZIP tool.
Sources differ
Make it yours
Save the bed in the Field Book so next season is not a guess.
Verified suppliers only
No supplier on this page
When a partner is listed, it will be outbound and disclosed. Nothing to buy here. Fertilizer, soils, and pesticides stay off this slot.
When do you plant asparagus?
Compare dates on the cited sheets. Clemson HGIC 1300 (South Carolina): Piedmont March 1 to April 15; Coastal February 1 to March 15. Maryland: March or April; mid-March through mid-April on the calendar. Minnesota: early May to early June. Illinois: as soon as the ground can be worked.
What to record in the Field Book
Save the bed with the crop and the date. You may add a photo and notes. Compare entries you have recorded with each other — not with a diagnosis from this page. If you want an identification, bring the record to local Extension.
How we know — methodology. Ranges and assertions are cited per source, not blended.