Side-by-side plant comparison — which is right for your garden?
Asclepias tuberosa
Apocynaceae · flowers
Delphinium elatum
Ranunculaceae · flowers
Butterfly Weed (Zones 3-9)
Delphinium (Zones 3-7)
Overlap: Both grow in zones 3–7
| Feature | Butterfly Weed | Delphinium |
|---|---|---|
| Scientific Name | Asclepias tuberosa | Delphinium elatum |
| Family | Apocynaceae | Ranunculaceae |
| Category | flowers | flowers |
| Sun | ☀️ Full Sun | ☀️ Full Sun |
| Water | 💧 Low | 💧💧 Medium |
| Soil | Well-drained, Sandy | Rich, Well-drained |
| Height | 2' 6" | 6' |
| Spread | 1' 6" | 2' |
| Bloom Season | Summer | Early Summer |
| Bloom Color | Orange | Blue, Purple, White, Pink |
| Growth Rate | Medium | Fast |
| Native Region | Eastern North America | Europe, Asia |
| Maintenance | Low | High |
Butterfly Weed
Delphinium
Butterfly Weed
Delphinium
Choose Butterfly Weed if you want a low-maintenance plant, need drought tolerance, and want deer resistance. It thrives in full sun with low water in zones 3–9.
Choose Delphinium if you don't mind high maintenance, and want deer resistance. It thrives in full sun with medium water in zones 3–7.
Plant them together? Both overlap in zones 3–7. They share similar sun requirements (full sun), making them potential garden companions.
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