1. a rose garden or collection of roses
Usage: formal

Examples

• The botanical garden featured a beautiful rosarium with over 200 varieties.
• Visitors strolled through the rosarium admiring the fragrant blooms.
• The university’s rosarium serves as both a research facility and public attraction.
• She spent hours photographing roses in the historic rosarium.
• The rosarium was established in 1925 and contains rare heritage varieties.
• Maintenance of the rosarium requires specialized knowledge of rose cultivation.