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| V | |
| Variegated | A leaf of two colours, one green and one cream or white usually because of an absence of chlorophyll. |
| Variety | A distinct variant of a species. |
| Vascular system | The conductive and supportive tissue of plants. |
| Vegetative growth | Leaf and stem growth rather than flower or fruit. |
| Vegetative propagation | Not growing from seed but through other means ie: cuttings, division, layering etc. |
| Vermiculite | Used in seed and cutting composts due to its lightness and water retention qualities, it is a sterile medium made from mica. |
| Vernalization | Bringing bulbs on with heat at an unnatural time of year. |
| Viability | The growth and development of seeds. |
| Vine-eye | A flat metal nail with a hole in it used to hammer into walls to carry wires used to support plants. |
| Virus | A contagious organism that causes disease in animals and plants. |
| Viticulture | The practice of growing grapes. |