|Cleome grown from seed and producing too much|
|I find new coneflower plants from grown from seed.|
In general, seeds develop about one month after the plant blooms. You need to watch the plants carefully to see when the seed ripens. Collect ripened seed on a dry sunny afternoon, as moisture is less of a problem. Some seeds drop easily from the seed head with a gentle shake, such as poppies or sunflowers. My poppies have provided seed for breads and hot dog buns, so there are practical reasons to gather seed, too.
Other seeds are contained in protective growths like cones or fleshy fruits, and these must be removed before the see is stored. Cones and pods placed in paper bags will often release seeds as they dry.
|Parsley seed ready to harvest|
Store seeds in paper bags or envelopes, label the outsides with pertinent information like contents and date, and leave in a dry place for a few weeks. Paper allows moisture to escape and the seed may need to dry more, even if it appears completely dry. Store the paper containers in plastic and place in the refrigerator over winter. Next spring the seeds should be ready to plant.