Zinnias, cosmos, cleome, yarrow and daffodils, grown in one bed to be cut for the vase.
Grown to cut. Grown to be cut for the vase: zinnias and cosmos for the summer, cleome for height, yarrow as the filler, daffodils for spring. There's no recorded interaction between them; they share a bed because they share a purpose. Sunflower, which would be the tallest cut flower in this bed, is deliberately left out, because its residue is recorded as suppressing the germination of small-seeded direct-sown neighbors, and zinnias and cosmos are exactly that.
At least 1.5 m²16 ft². If your bed is smaller, the planner grays this plant team out, says why, and offers the nearest adaptation that fits. It never swaps in something else without telling you.
Living perennials stay in the bed between seasons, so only part of the ground gets rotated.
Rotation history belongs to the ground itself, so this is what the planner records about this patch after the plant team comes out.
How it works: Soilborne inoculum and overwintering pest stages disperse across the bed. A plant team dominated by one family forecloses that ground for that family's rotation interval.
Evidence: checked against 2 sources in the research-based literature.
Rotate the whole bed the plant team occupied, including rows that family never grew in.
How it works: Tillage destroys the crown. Rotation moves the annuals; the perennial cannot move.
Evidence: checked against 1 source in the research-based literature.
Rhubarb is often planted to one side of the garden, where it will not be disturbed if the main garden is plowed or rototilled in the fall.
Split perennial members into a permanent border; rotate the annuals around it.
