UNITED STATES—Propagation produces more plants from minimal and readily available resources. Within home gardens, propagation is practical by seed, cutting, layering or division. Seed which is not available directly from the garden is generally not very expensive. Cutting, layering and division utilize what already lives within the garden. In other words, the stock is free.

Seeding produces genuinely new plants. Other forms of propagation produce genetically identical copies of their parent plants. Cutting compels pieces of stem to grow new roots. Layering does the same, but while pieces of stem remain attached to their parent plants. Division involves separation of portions of stems that already developed their own roots.

Most species that are conducive to division are substantial peren

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