01 · Timing

When and how to begin

Start very small seed indoors well before transplanting, keeping it near the surface and evenly moist.

02 · Growing sequence

See the crop change before it happens.

Illustrated growth sequence for celery, from establishment through mature harvest.
  1. 01Start seed early under strong light.
  2. 02Transplant after seedlings are sturdy.
  3. 03Never allow the root zone to cycle severely dry.
  4. 04Harvest before prolonged heat or hard freeze.

03 · Below the surface

Give the roots their working volume.

Planting geometryDepth, roots, and final space
8–12 in final spacing
⅛ in

A compact, thirsty root system needs rich soil and unusually steady moisture.

04 · Harvest

Know when it is ready

Visual decisionRead the plant, not only the date
Illustrated growth sequence for celery, from establishment through mature harvest.
Not yet

Still developing

Illustrated growth sequence for celery, from establishment through mature harvest.
Ready

Cut full plants when stalks are thick and crisp, or take outer stalks while the center continues growing.

Illustrated growth sequence for celery, from establishment through mature harvest.
Past prime

Quality or vigor may decline when harvest is delayed beyond the intended stage.

05 · Common trouble

Inspect before you treat

BlackheartLeaf minersStringy stalks

Symptoms can share several causes. Check moisture, recent weather, and the complete plant before applying a treatment.

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