Ozothamnus rosmarinifolius, commonly known as Rosemary Rice Flower or Rosemary Everlasting, is a charming evergreen shrub native to Australia. This ornamental plant is prized for its needle-like, aromatic foliage and its delightful, long-lasting clusters of small, daisy-like flowers. Ozothamnus rosmarinifolius is a popular choice in gardens and landscapes for its appealing appearance and adaptability.
Rosemary Rice Flower is named for its foliage, which resembles that of rosemary (Rosmarinus officinalis) due to its narrow, linear leaves that are gray-green to silver in color. These aromatic leaves add a lovely fragrance to the garden when brushed against. The plant produces small, white to pinkish-purple flowers in dense clusters that resemble rice grains, hence the common name "Rice Flower." These blooms appear from late spring through summer, creating a profusion of color. The flowers are papery and can persist for an extended period, giving the plant its "Everlasting" moniker. Rosemary Rice Flower typically grows to a height of 2 to 4 feet (0.6 to 1.2 meters) and has a bushy, compact growth habit.
Cultivation:
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Sunlight: Rosemary Rice Flower thrives in full sun to light shade. It tends to produce more blooms when exposed to ample sunlight.
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Soil: Well-draining, slightly acidic to neutral soil is ideal for this shrub. It can tolerate a range of soil types, including sandy or loamy soils. Amending the soil with organic matter can improve its texture.
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Watering: Once established, Ozothamnus rosmarinifolius is moderately drought-tolerant. Water regularly during the growing season, especially during dry spells, but allow the soil to dry out slightly between waterings. Reduce watering in the dormant season.
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Pruning: Prune the plant lightly after flowering to maintain its shape and remove any dead or overgrown branches. This can also help encourage more compact growth and better flowering in subsequent seasons.
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Mulching: Apply a layer of mulch around the base of the plant to conserve soil moisture, regulate soil temperature, and suppress weed growth.
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Temperature and Hardiness: Rosemary Rice Flower is generally hardy in USDA hardiness zones 9 to 11. It is sensitive to frost and may require protection in colder climates.
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Container Growing: Ozothamnus rosmarinifolius can be cultivated in containers or pots with well-draining potting mix. Ensure proper drainage in the container and provide regular care.
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Pests and Diseases: This shrub is relatively pest and disease-resistant. However, monitor for common garden pests like aphids or spider mites and treat any infestations promptly if they occur.
Ozothamnus rosmarinifolius, or Rosemary Rice Flower, is a delightful and versatile shrub that brings fragrance, color, and visual interest to gardens and landscapes. With its aromatic foliage and enduring flowers, it is an excellent choice for adding charm and elegance to outdoor spaces while requiring moderate care once established.
