Planting timing
When to plant celery
Plant celery on the cited sheets — not on a national calendar month. Indoor start and outdoor notes 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.
Dates stay on the named cards below — not one planting window.
Spacing lives on the celery hub. Timing stays on the cited sheets.
Spacing lives on how to grow celery.
What the sources say — at a glance
One source per card. Facts are not averaged.
UMN Extension (Minnesota)
Mid-February. 12–13 weeks indoors.
Details and limits (2)
When
UMN Extension (Minnesota): mid-February, celery, 12 to 13 weeks indoors. Minnesota indoor start — not a national plant date.
Limit
Not one BioArva calendar and not a ZIP tool.
UMN Extension (Minnesota)
Mid-May.
Details and limits (2)
When
UMN Extension (Minnesota): mid-May, celery. Minnesota outdoor timing — not a national plant date.
Limit
Not one BioArva calendar and not a ZIP tool.
Maryland Extension (Maryland)
April 15 to May 1.
Details and limits (2)
When
Maryland Extension (Maryland): celery, April 15 to May 1. Central Maryland calendar — not a national plant date.
Limit
Not one BioArva calendar and not a ZIP tool.
Clemson HGIC 1256 (South Carolina)
No celery planting-date note on this page.
Details and limits (2)
When
Clemson's HGIC 1256 planning table does not provide a celery planting-date note for this page.
Limit
Not one BioArva calendar and not a ZIP tool.
Illinois Extension (Illinois)
No celery planting-date note on this page.
Details and limits (2)
When
Illinois's when-plant page does not provide a celery planting-date note for this page.
Limit
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.
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.