9 of the best fast-growing green plants you can feed rabbits to support healthy growth, strong digestion, and good overall nutrition. These are safe and nutritious when offered in proper amounts as part of a balanced diet (always introduce new greens slowly and wash before feeding) 🥬 1. Lettuce (Romaine & Loose Leaf) Grows fast (30–40 days). Rabbits love the tender leaves and it’s rich in vitamins. Avoid iceberg lettuce — low nutrition and too watery. 🥗 2. Dandelion Greens Often self-sowing an