The problem is that not all species can be propagated using the same method. Each of the several methods of propagation have advantages and disadvantages. Azaleas are propagated from seeds, stem cuttings, root cuttings, layers, and grafting. Stem cuttings are the most popular method. Seed Propagation Propagation by seed is a good method for many deciduous azaleas and other cultivars that are difficult to propagate by cuttings or other methods.
Seed capsules are green and turn yellow to brown when mature.
Capsules should be collected when they begin to turn brown, mid- to late autumn. If the capsule has split open, seeds will readily drop out. Store the seed capsules at room temperature in paper envelopes or open-top containers. Each capsule contains 100 to 500 seeds. The sphagnum moss method is generally used for germination.