Allium rosenbachianum (Showy Persian Onion) is a bulbous perennial with large, rounded umbels, 4 in. ac… | Bulb flowers, Rose companion plants, Partial shade plants
Allium rosenbachianum hi-res stock photography and images - Alamy
Showy Persian Onion Tall Allium - Fedco Bulbs
Allium rosenbachianum 'Album' | BBC Gardeners World Magazine
Allium rosenbachianum 'Showy Persian Onion' – Susie Ripley Gardening