Seed companies produce and sell seeds for flowers, fruit and vegetables to the amateur gardener. The production of seed is a multi billion dollar business, which uses growing facilities and growing locations world wide. While most seed is produced by large specialist growers, large amounts are produced by small growers that produce only one to a few crop types. These larger companies supply seed both to commercial resellers and wholesalers. The resellers and wholesalers sell to vegetable and fruit growers, and to companies who package seed into packets and sell them on to the amateur gardener.
Each seed company or reseller that sells retail, produces a catalogue – generally published during early winter for seed to be sown the following spring. These catalogues are eagerly awaited by the amateur gardener, as during winter months there is little that can be done in the garden, so this time can be spent planning the following year’s gardening. Most companies run a mail order catalogue business, some also supply their range of seeds to garden centers and other retailers.
Seed companies produce a huge range of seeds from highly developed F1 hybrids to open pollinated wild species. Many gardeners like to stick to old familiar varieties but each year seed companies produce new varieties for gardeners to try. They have extensive research facilities to produce plants with better genetic materials that result in improved uniformity and gardening appeal. These improved qualities might include disease resistance, higher yields, dwarf habit and vibrant or new colors. These improvements are often closely guarded to protect them from being utilized by other producers, thus plant cultivars are often sold under there own names and by international laws protected from being grown for seed production by others.
Along with the growth in the allotment movement, and the increasing popularity of gardening, there have emerged many small independent seed companies. Many of these are active in seed conservation and encouraging diversity. They often offer organic and open pollinated varieties of seeds as opposed to hybrids. Many of these varieties are heirloom varieties. The use of old varieties will continue to maintain diversity in the horticultural gene pool. There is a good case for amateur gardeners to use older (heirloom) varieties as the modern seed types are often the same as those grown by commercial producers, and so characteristics which are useful to them (e.g. vegetables ripening at the same time) may be unsuited to home growing.