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Myoporum Care

Myoporum is a genus of plant species native to Australia, ranging from low ground covers to small trees or shrubs, all of which thrive with little care or irrigation. In fact, too much water can be detrimental to these drought-tolerant plants. These plants sometimes produce poisonous berries, so they are best planted away from residential areas but work well as slope covers or on large, open landscapes.
  1. Description

    • Prostrate myoporum (Myoporum parvifolium) is a well-known species from the myoporum genus and is a vigorous ground cover plant. It exhibits bright green leaves and a multitude of small white flowers from spring through summer. Tough and hardy, this plant will grow 1 foot tall and is often planted in masses to cover slopes and large areas. Myoporum sandwicense (false sandalwood) is another example of the genus. It is a fast-growing shrub or tree with a shorter form called naio papa, which can be planted as a ground cover.

    Water

    • Despite their rich green foliage and aggressive growth habit, myoporum species require very little water to thrive. Plant in well-drained soil and allow the soil to dry out between waterings. With too much moisture, foliage may begin to turn yellow and the plant may even die. For this reason, these plants are ideal for dry landscapes such as in Arizona and California. Species like Myoporum sandwicense should only be watered during periods of extended drought because it can develop black sooty mold with too much moisture.

    Planting and Maintenance

    • Myoporum species tend to be aggressive, fast-growing plants, so avoid crowding the plants. Myoporum parvifolium requires 5 to 6 feet between each individual and is ideal for sunny slopes and wide-open areas. When planting shrubs like Myoporum sandwicense, space them 3 to 6 feet apart. Naio papa requires just 2 feet of spacing. Though it is a ground cover, Myoporum parvifolium should be protected from foot traffic. Prune back stems as needed to control spread and shape shrubs as desired. Older plants may become woody and require removal of dead parts after a few years.

    Propagation

    • Take cuttings of myoporums from new growth. They should root quickly for easy propagation. Use a light seeding medium that is well-draining and lightly fertilized, and place seedling tray on a heat mat or warm location. A mixture containing perlite is ideal for seedlings to avoid waterlogged soil. Provide moderate moisture, but do not go overboard with water. A balanced, slow-release fertilizer is helpful for plants as they are establishing and every six months thereafter.