| B | | | |
|
| C | - Hardy herbaceous perennials
| - Seasonal perennial plants
|
| E | |
| F | - Indigenous flora of South America.
|
| G | |
| H | | - Alpine, rock garden plants & associated perennials
| |
|
| L | - Hardy ferns, herbaceous perennials & plants for shade & semi-shade
|
| M | |
| N | - Diversity of the genus Lobelia
|
| P | - Stokesia & hardy perennials
|