Side-by-side plant comparison — which is right for your garden?
Rosa 'Radrazz'
Rosaceae · flowers
Lathyrus odoratus
Fabaceae · flowers
Knockout Rose (Zones 5-10)
Sweet Pea (Zones 2-11)
Overlap: Both grow in zones 5–10
| Feature | Knockout Rose | Sweet Pea |
|---|---|---|
| Scientific Name | Rosa 'Radrazz' | Lathyrus odoratus |
| Family | Rosaceae | Fabaceae |
| Category | flowers | flowers |
| Sun | ☀️ Full Sun | ☀️ Full Sun |
| Water | 💧💧 Medium | 💧💧 Medium |
| Soil | Well-drained | Rich, Well-drained |
| Height | 4' | 6' |
| Spread | 4' | 1' |
| Bloom Season | Spring-Fall | Spring-Summer |
| Bloom Color | Red, Pink | Mixed |
| Growth Rate | Fast | Fast |
| Native Region | Hybrid (US) | Italy, Sicily |
| Maintenance | Low | Medium |
Knockout Rose
Sweet Pea
Knockout Rose
Sweet Pea
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.
Choose Sweet Pea if you don't mind medium maintenance, and want deer resistance. It thrives in full sun with medium water in zones 2–11.
Plant them together? Both overlap in zones 5–10. They share similar sun requirements (full sun), making them potential garden companions.
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