VERNALIZATION - The time factor of cold days needed by certain plants to produce a bud. Such as in apples need a certain amount of cold days to create their buds.
vernalization A low-temperature treatment promoting flowering.
vernation The arrangement of new leaves within an older leaf sheath (e.g., on a grass plant).
verticle spacing The vertical space between branches on a tree.
VERNALIZATION: The cold treatment needed by some fall-germinating plants to promote flowering the following spring.
VFN: Indicate whether or not a plant is resistant to verticillium wilt, fusarium wilt, or certain nematodes.
Vernalization Subjection of plants or seeds to a temperature regime that mimics the natural passage of the seasons. This is done to cause them to bloom out of season or at a younger age than would normally happen.
Bulbs are a mainstay of the spring garden, but need the vernalization (over-wintering) to flower then, so now is the time to plant them! Pick the bulbs that work for your area and climate and make sure to follow instructions on depth and placement.
That subterfuge is called vernalization. Start seedlings indoors 12 weeks before the last frost.
Paperwhite narcissus can be easily forced to bloom anytime in winter thru spring because unlike tulips, hyacinths or daffodils, they do not require a cooling period (vernalization) ...
If you want tulips, hyacinths or crocus, be aware that they'll need some vernalization (some time in a cold atmosphere before planting). And you'll have to dig them up late the next spring and store them in a cool, dry place until fall.
Most lilies perform well as lasting perennials over most of the United States but gardeners living where winters are so mild they do not give at least six weeks of 40-degree (or lower) temperature days should be aware of the need for "vernalization.' ...
 See also: Vernal, Grow, Plant, Gardening, Water
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