What are the disadvantages of Sabina vulgaris seed reproduction? How to collect seeds? When will the seeds be sown?

Sabina vulgaris is a variety of branches of Sabina vulgaris, the branch shape is free and natural, is a good ornamental tree species. The grafted seedlings grow fast, can keep the morphological characteristics well, and are widely used. The morphological characteristics of seed reproduction are unstable, can not maintain the good shape of the female parent, and the seeding seedlings are tree-shaped, sparse branches and leaves and low ornamental value, so they are not often used. When you want to sow seeds, you can store them in sand after seed collection, soak them in the next spring, and sow them in strips when the seed coat is cracked to develop buds. The thickness of the covered soil is 2-3 cm, keeping the soil moist. The requirements of the soil are not strict, the general garden soil can be sown.