Side-by-side plant comparison — which is right for your garden?
Iris germanica
Iridaceae · flowers
Lupinus polyphyllus
Fabaceae · flowers
Iris (Zones 3-9)
Lupine (Zones 4-7)
Overlap: Both grow in zones 4–7
| Feature | Iris | Lupine |
|---|---|---|
| Scientific Name | Iris germanica | Lupinus polyphyllus |
| Family | Iridaceae | Fabaceae |
| Category | flowers | flowers |
| Sun | ☀️ Full Sun | ☀️ Full Sun |
| Water | 💧 Low to Medium | 💧💧 Medium |
| Soil | Well-drained | Well-drained, Slightly Acidic |
| Height | 3' | 4' |
| Spread | 1' 6" | 2' |
| Bloom Season | Spring | Late Spring-Summer |
| Bloom Color | Purple, Blue, Yellow, White | Blue, Purple, Pink, Yellow |
| Growth Rate | Medium | Medium |
| Native Region | Mediterranean, Europe | North America |
| Maintenance | Low | Medium |
Iris
Lupine
Iris
Lupine
Choose Iris if you want a low-maintenance plant, need drought tolerance, and want deer resistance. It thrives in full sun with low to medium water in zones 3–9.
Choose Lupine if you don't mind medium maintenance, and want deer resistance. It thrives in full sun with medium water in zones 4–7.
Plant them together? Both overlap in zones 4–7. They share similar sun requirements (full sun), making them potential garden companions.
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