Side-by-side plant comparison — which is right for your garden?
Rhododendron spp.
Ericaceae · shrubs
Pennisetum alopecuroides
Poaceae · grasses
Azalea (Zones 5-9)
Fountain Grass (Zones 5-9)
Overlap: Both grow in zones 5–9
| Feature | Azalea | Fountain Grass |
|---|---|---|
| Scientific Name | Rhododendron spp. | Pennisetum alopecuroides |
| Family | Ericaceae | Poaceae |
| Category | shrubs | grasses |
| Sun | ⛅ Part Shade | ☀️ Full Sun |
| Water | 💧💧 Medium | 💧💧 Medium |
| Soil | Rich, Acidic, Well-drained | Well-drained |
| Height | 8' | 4' |
| Spread | 6' | 3' |
| Bloom Season | Spring | Summer-Fall |
| Bloom Color | Pink, Red, White, Purple | Pink, Tan |
| Growth Rate | Medium | Fast |
| Native Region | Asia, North America | East Asia, Australia |
| Maintenance | Low | Low |
Azalea
Fountain Grass
Azalea
Fountain Grass
Choose Azalea if you want a low-maintenance plant. It thrives in part shade with medium water in zones 5–9.
Choose Fountain Grass if you want a low-maintenance plant, need drought tolerance, and want deer resistance. It thrives in full sun with medium water in zones 5–9.
Plant them together? Both overlap in zones 5–9. However, they have different sun needs, so plan your garden layout carefully.
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