Side-by-side plant comparison — which is right for your garden?
Hydrangea macrophylla
Hydrangeaceae · flowers
Rosa 'Radrazz'
Rosaceae · flowers
Hydrangea (Zones 5-9)
Knockout Rose (Zones 5-10)
Overlap: Both grow in zones 5–9
| Feature | Hydrangea | Knockout Rose |
|---|---|---|
| Scientific Name | Hydrangea macrophylla | Rosa 'Radrazz' |
| Family | Hydrangeaceae | Rosaceae |
| Category | flowers | flowers |
| Sun | ⛅ Part Shade | ☀️ Full Sun |
| Water | 💧💧 Medium to High | 💧💧 Medium |
| Soil | Rich, Moist | Well-drained |
| Height | 6' | 4' |
| Spread | 6' | 4' |
| Bloom Season | Summer | Spring-Fall |
| Bloom Color | Blue, Pink, White | Red, Pink |
| Growth Rate | Medium | Fast |
| Native Region | Japan | Hybrid (US) |
| Maintenance | Medium | Low |
Hydrangea
Knockout Rose
Hydrangea
Knockout Rose
Choose Hydrangea if you don't mind medium maintenance, and want deer resistance. It thrives in part shade with medium to high water in zones 5–9.
Choose Knockout Rose if you want a low-maintenance plant, need drought tolerance. It thrives in full sun with medium water in zones 5–10.
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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