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Propagating a Native Hibiscus

Native varieties of the flowering hibiscus shrub occur in tropical areas around the world. From the Pacific Islands to Australia, to the American Southern states, the members of the Hibiscus genus are typically medium-sized shrubs that produce flowers during much of the year, depending on species. Some hibiscus species are endangered, such as the Hawaiian native H. clayi and H. brackenridgei. Because of development and invasive species, these plants are in danger of extinction. Home gardeners propagate them help keep the gene pool alive.

Things You'll Need

  • Clippers
  • Rooting hormone
  • Potting soil
  • Perlite
  • Small pots
  • Pencil or screwdriver
  • Small sharp knife
  • Vermiculite
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Instructions

  1. Propagating from Cuttings

    • 1

      Make cuttings from healthy, nonblooming branch tips about 4 to 6 inches long. Include at least three leaf nodes. Strip off all leaves on the cutting’s lower half.

    • 2

      Insert the cut end in a rooting hormone completely coating the branch at least 1 inch up from the cut end.

    • 3

      Combine equal parts potting soil and perlite. Fill 3-inch pots with drainage hole with the mixture. Water them thoroughly until water runs out the drainage hole.

    • 4

      Make one hole with a pencil or screwdriver in each small pot’s center. Insert the cut end of one cutting into the soil mixture and gently fill in with soil securing the cutting.

    • 5

      Place the potted cuttings in a humid area with no direct sun.

    • 6

      Mist your cuttings frequently. If you set up an automatic system, set it to mist the cuttings every three minutes.

    Propagating from Seeds

    • 7

      Pick dry seed capsules before they drop the seeds inside. Using your fingernail or the point of a small, sharp knife, score the capsule releasing the seeds. Working over a sheet of newspaper helps catch the seeds as they fall.

    • 8

      Soaking dry seeds in water for 24 hours before planting speeds germination. Some growers recommend hot water, buy others claim soaking is not necessary.

    • 9

      Prepare a planting mix of 2 parts perlite, 1 part vermiculite and 1 part sterile potting soil. Fill 3-inch pots with drainage holes with this mixture and then water the mix thoroughly until water runs out the drainage hole.

    • 10

      Keep seeded pots in a shady area and keep the soil moist but not soggy. Expect germination of many species to occur within three to nine days.