There are many reasons to save seeds from your garden, to replant next year.
One reason is to share with family and friends. If you have found a fabulous tomato that tastes great, grows well, produces before frost, your friends and family members may want seeds to grow their own plants.
Another reason is to save money. Buying seeds every year is an expense, but one that can be eliminated or minimized by saving your own seeds.
Adaptability is important. Saving seeds from the most prolific, best plants in your garden will cause the plants to adapt to your specific and unique growing conditions and climate.
You can help save plant genetic diversity. Seed companies cannot grow and sell every variety due to space, cost and business reasons. This means that some will be eliminated. The seeds companies usually favor best sellers, meaning the remaining and unique, interesting varieties being lost. Agribusiness is big business. Varieties that ship easily and store for long periods are more important than home gardeners taste and flavor.
It allows you connect with nature’s cycles, and is deeply satisfying.
For more information on saving seeds and gardening, please see http://www.thegardenhelper.com/growingseeds.