Almost all native plants can be propagated from seeds, although it can be time-consuming and, with some species, undependable. However, using seeds is a valuable propagation method because it reduces the likelihood of injuring the parent plant, minimizes your impact on natural settings, and makes it possible to grow a large number of seedlings. Most seeds can be planted as soon as they are ripe, or dried and stored for later use. The best time to collect seeds is when they are mature.
Most seeds begin to ripen in early summer and can be harvested in the fall.
When collecting seed capsules or cones, look to see whether there still are seeds inside. Make a note of the dates you find particular species of seed ripening so that in future years you will know when to collect them. It is important to consider genetic diversity when propagating plants from seed. Collect from areas that are similar to your planting site and, if possible, from within the same watershed. These strategies will help ensure that plant genes match their growing environment for the best chance of successful propagation.