- ID status
- Confirmed species; polymorphic population
- Provenance
- P1–P2
- Native origin
- Mexico
- Life cycle here
- Tender summer annual
- Landscape layer
- Cultivated rock-margin / mid-story
- Color index
- Magenta · blush · salmon · gold · bicolor
Observed morphology. Upright annual with opposite, nearly sessile, rough-pubescent leaves and sturdy stems. Rainbow House currently contains single, semi-double, dahlia/pompon, bicolor mahogany-gold, and partially quilled/striped morphotypes.
Ecology. Strong long-season resource for butterflies, bees, skippers, and hoverflies. Open and semi-double morphotypes generally provide easier floral access than densely double forms. Hummingbird use should be treated as secondary/opportunistic rather than the primary ecological role.
Management. Full sun, strong airflow, well-drained soil, and ground-level irrigation. Maintain separate maternal seed envelopes from the bicolor, quilled, deepest magenta, and strongest double forms for the 2027 RH-Z selection program.
Open verification. Track ray-floret versus disc-floret seed set during harvest and record which maternal heads produce viable offspring.