Allium tuberosum References
| 2 | Bitterlich, K. (2023). European SAFS design database, Retrieved June 11, 2023, from https://docs.google.com/spreadsheets/d/1Z2qk1Majrx9A8N_tZ9M3KEAhBTk6oA3oaI8Bn8a4L_4/edit#gid=1318420962 |
| 5 | Crawford, M. (2010). Creating a forest garden. Green books. |
| 7 | Crawford, M. (2012). How to grow perennial vegetables: Low-maintenance, low-impact vegetable gardening. Bloomsbury Publishing. |
| 11 | Jacke, D., & Toensmeier, E. (2005). Edible forest gardens, volume II: ecological design and practice for temperate-climate permaculture (Vol. 2). Chelsea Green Publishing. |
| 14 | Plant of the world online, Retrieved June 10, 2023 from: https://powo.science.kew.org/?name_id=294972 |
| 16 | Plants For A Future Retrieved July 29, 2023 from https://pfaf.org/user/Default.aspx |
| 17 | Barstow S. (2014). Around the World in 80 Plants: An Edible Perennial Vegetable Adventure in Temperate Climates. |