Malabar spinach, New Zealand spinach, amaranth and sweet potato, greens that keep coming through the summer heat that sends lettuce and spinach to seed.
Chosen for the kitchen. None of these plants is known to help another. They share a season: the summer heat that sends lettuce and spinach to seed is when these grow best, so they keep a gardener in leafy greens until the weather cools. Keep them watered and fed. Dry soil or a hungry plant flowers early, and then the leaves turn bitter. Malabar spinach climbs and wants a sturdy trellis; New Zealand spinach and the sweet potato spread along the ground.
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.
Nothing is left living in the bed over winter; the whole planting is re-established.
Rotation history belongs to the ground itself, so this is what the planner records about this patch after the plant team comes out.
The planner won’t plan around this claim. What is known instead is below.
What is known: Some plant teams rest on a real way one plant acts on another. A kitchen bundle says only that you'll want these things in the same bowl. Both are good ways to plant. Only the first has plants working on each other.
Evidence: settled without a trial (definition).
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.
A new combination: the extension advice to grow heat-tolerant greens in the months lettuce and spinach will not produce (UF/IFAS Gardening Solutions, 'Heat-Tolerant Vegetables' and 'Tropical Spinaches'; UF/IFAS VH021; Utah State, 'How to Grow New Zealand Spinach in Your Garden'), gathered as one bed. Not a documented traditional planting.