01 · Timing

When and how to begin

Use a locally appropriate species or cultivar; seed may need a cold-moist period, while transplants establish faster.

02 · Growing sequence

See the crop change before it happens.

Illustrated growth sequence for coneflower, from establishment through mature harvest.
  1. 01Choose a permanent sunny site.
  2. 02Water while roots establish.
  3. 03Avoid chronic winter wetness.
  4. 04Remove plants with confirmed aster yellows rather than composting them.

03 · Below the surface

Give the roots their working volume.

Planting geometryDepth, roots, and final space
18–24 in final spacing
⅛ in

A deep perennial root system becomes drought-tolerant after establishment and dislikes frequent moving.

04 · Harvest

Know when it is ready

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

Still developing

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

Cut flowers for arrangements as they open, or leave mature heads for seed and winter wildlife value.

Illustrated growth sequence for coneflower, 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

Close botanical observation of yellow leaves, presented as a visual symptom rather than a diagnosis.
Yellow leavesCompare observations →
Close botanical observation of holes in leaves, presented as a visual symptom rather than a diagnosis.
Holes in leavesCompare observations →
Aster yellowsJapanese beetlesCrown rot

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

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