The yucca plant is an important plant for landscaping in harsh climates. It needs little care and will tolerate very dry conditions because of its fleshy roots. In areas where rainfall is sporadic and sometimes torrential, it still thrives as long as it is growing in well-draining soil. The yucca can be propagated from seed that forms on its tall stems after the flowers fade away. Planting is usually done in spring.
Soak your yucca seeds in room-temperature water for 24 hours before you plan on planting them. This will help soften their seed coats and improve the germination process. An easy way of soaking seeds is to place them in a plastic bag, add a few tablespoons of water and then seal the bag shut, squeezing as much of the air out as possible. The seeds will have good moisture contact, instead of floating on the surface of the water.
Fill a plant pot with a mixture of half potting soil and half sand. The yucca plant requires fast drainage so the roots are never sitting in water. Poke a few shallow holes in the soil either in individual small pots or a large pot, keeping them at least 2 inches apart and about half an inch deep.
Drop the seeds, two per hole, into the prepared plant pots. Press the soil in over them and tamp it down slightly. Give the planted yucca seeds a sprinkle of water and then set in a sunny and warm spot where they can get at least six hours of sun per day. Expect sprouts in about three weeks.
Thin any seedlings that come up to one per hole. Transplant the yucca seedlings to a large pot or into the garden when they are about 2 inches high, keeping as much soil around the roots as possible.