Why Sowing Seeds is Satisfying?

Some plants just won't give you the satisfaction of saving and using your own seed. They are do-it-yourselfers or self-sowers. If you don't pluck every last spent blossom from plants such as calendula, French marigolds, forget-me-nots, or sweet alyssum, they will seed themselves back. Personally, I like this approach. You not only save money, but also time and effort.

Often second-generation seeds won't grow up to look just like their parents, which is fine as long as they produce interesting or attractive plants. When weeding in the spring look for familiar seedlings, lest you accidently cull volunteer flowers (self-sown plants that pop up unexpectedly).
Self-Sowing Plants:

Allowing plants to self-sow can save you money, time, and effort. But you have to be prepared for some surprises. Here's a brief guide to well-known self-sowers.

Will Grow True to Type:
Blue Cornflower, Calendula, Dill, French Marigold, Godetia, Love-in-a-Mist, Nasturtiums, Sweet Alyssum, Yellow Corydalis, Violets, Pansies.

Type Will Change With New Generation:
Forget-me-not, Foxglove, Snapdragon.

Sowing Saved Seeds

The final step toward renewing your plant population is to sow the seeds. Chapter 6 describes how to start seeds and when to transplant. There is one other consideration, however, with home-cured seeds. Some types need a little help to sprout.

Most vegetable seeds don't need special attention to germinate. Soaking large vegetable seeds for one to two hours helps accelerate the process, but it is not absolutely necessary. Most flowers also don't require special treatment. A few perennial and shrub seeds, however, have unusual requirements.

Certain seeds, such as yarrow, or some varieties of aster or dianthus, remain dormant for a long time and will germinate best after their second year in storage. Others, such as some forms of primula or rhododendron, only germinate well when sowed fresh. Soaking seeds of camellia, cystitus, and other shrubs greatly enhances their germination rates.

Some seeds, such as those of lupine or peonies, are so tough they should be scarified. This means gently nicking or sanding the seed coat to give the embryo an escape route.

Testing Stored Seeds

Faster germination results in more vigorous plants. For this to occur a high percentage of the seeds should sprout within the normal time for its type. To determine how well your seeds have survived storage, perform a germination test.

Moisten a paper towel or coffee filter, place ten or twenty seeds on it, and seal in a zip-seal plastic bag. Open daily to check for germination. After the appropriate amount of time has passed for that type of seed, count the number of sprouts to figure the percentage.

Five out of ten seeds and ten out of twenty seeds gives a 50 percent rate. More seeds in the test will yield more accurate results. Seeds that show a better than 70 percent germination rate are average, over 80 percent are good, and better than 90 percent are great to plant.
Don't bother planting poorly germinating seeds. They won't produce superior plants, a necessity for getting the most from your gardening dollar. Always start with the best seed possible, even if you have to go out and buy it.