| Image | Plant | Status | Notes | Events |
|---|---|---|---|---|
 |
Ornamental Onion (Allium 'Millenium') |
Have Allium/Ornamental Onion |
2018. | |
 |
Flowering Onion (Allium 'Purple Sensation') |
Have Allium/Ornamental Onion |
||
 |
Stars of Persia (Allium cristophii) |
Have Allium/Ornamental Onion |
||
 |
Giant Allium (Allium giganteum 'Globemaster') |
Have Allium/Ornamental Onion |
Have diminished in size since first planted. | |
 |
Ornamental Onion (Allium stipitatum 'Mount Everest') |
Have Allium/Ornamental Onion |
Foliage remains healthier looking at bloom time compared to some others, eg. Purple Sensation. |
