Science · High-Value Shrubs
Roses
Signature color for entries and gardens; consistent deep watering and dry foliage limit disease.
Rosa spp. · Flowering shrub
Profile
- Zones
- USDA 4–10
- Size
- 2–8 ft
- Sun
- Full sun (6+ hours)
Water & soil targets
- Moisture (VWC)
- ~20–28%
- Salinity tolerance
- Moderate
- Drought tolerance
- Moderate
Water at the roots, not on the leaves.
Problems to watch
- Black spot
- Powdery mildew
- Aphids
- Rose rosette
Stress signs
- Yellow leaves with black spots
- Bud blast
Where you'll find it
- Entries
- Resort gardens
- Estates
More high-value shrubs
All Science profilesGeneral agronomic guidance and typical ranges; actual targets vary by site, soil, climate and season.