Ixora - Plant Encyclopedia Results

Ixora casei is an evergreen shrub or small tree in the Rubiaceae family native to the western Pacific, including the Caroline, Mariana, Marshall, and Gilbert Islands. It is a true tropical species associated primarily with moist forest habitats. Plants develop a dense, branching habit with large, glossy green leaves and can eventually reach about 10-20 feet (3-6 m) under favorable conditions. Dense terminal clusters of numerous tubular flowers create a conspicuous display, typically in rich red to scarlet shades, contrasting strongly with the dark foliage.

Ixora casei grows best in full sun to partial shade and fertile, well-drained, slightly acidic soil with regular moisture. Like other tropical Ixoras, it benefits from warmth and humidity and may develop chlorotic foliage in strongly alkaline soils. It responds well to pruning and can be maintained as a smaller shrub or container specimen. Best suited to USDA Zones 10-12, it should be protected from frost and prolonged cold. Several botanical varieties are recognized, including I. casei var. casei, var. lanceolata, and var. medialoba. Its large foliage, dense flower clusters, and vigorous tropical habit make it a striking specimen for warm-climate gardens.

A new hybrid culivar with beautiful double-tripple flowers 1/2 across that come in large clusters. Flowers change color from yellow to red, with yellow, orange and red flowers in the same cluster. Medium size shrub, acid soil is preferrable. Can be grown in container with full sun provided for profuse blooming. Cold sensitive.

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Rare species from Thailand. Medium size shrub, it has white slightly fragrant flowers with long stamens, similar to Ixora finlaysoniana. Filtered light during hot season and regular watering.

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Clusters of pure white fragrants flowers, as its name suggests. Ixora species have interesting pollen presentation - the pollen is released from the anthers onto the style, but away from the stigmatic surfaces, before the flowers open.

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Ixora lobbii is a tropical evergreen shrub in the Rubiaceae family, native to Southeast Asia. It develops a compact to moderately spreading habit with opposite, glossy green leaves and dense terminal clusters of small tubular flowers. The flowers are typically pink to deep rosy pink, with four spreading lobes forming a star-shaped face, and attract butterflies and other pollinators. Like other Ixora species, it can flower repeatedly through much of the year in warm tropical conditions. Its relatively compact growth and colorful blooms make it useful for borders, low hedges, tropical mixed plantings, and containers.

Ixora lobbii grows best in bright light to full sun, although some protection from intense afternoon sun can be beneficial in very hot climates. It prefers fertile, acidic, well-drained soil with regular moisture and performs poorly in alkaline conditions, where iron and manganese deficiencies may cause chlorotic foliage. It is primarily suited to USDA Zones 10-11 and should be protected from frost. Container plants benefit from an acidic potting mix, even moisture, and regular feeding during active growth. Light pruning after flowering helps maintain a dense, branching form without removing excessive developing flower buds.

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Ixora odorata is a large evergreen shrub that grows 5-10 feet tall and can be found in gardens and landscapes of the tropics and subtropics in USDA zones 1011. In addition to its attractive evergreen foliage, these large shrubs also produce clusters of white or off-white, fragrant flowers in summer and fall. It does not thrive in the full sun so it is best suited for semi-shade or indirect light. The soil should be moist and well-drained and acidic. It is a very tough shrub that can tolerate some salt spray from nearby seaside and also thrives in coastal areas.

For those living in colder climates, Ixora odorata can also be grown in a pot where you will need to take extra care to provide them with ideal growing conditions. It is key to ensure the soil doesn't become dry too often and remains constantly moist, without becoming soggy. During winter, it is essential to move the pot to a protected spot where temperatures will remain above freezing point. You can also add a mulch layer on top of the soil and a frost cloth over the pot during the coldest months to further protect the plant.

Learn how to grow Ixora odorata: Ixora odorata - exclusive flower with fine perfume.

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Small to medium size shrub with unusual aqua-color flowers which are very fragrant and attract many insects and butterflies. Unlike other ixoras with waxy leaves, this one has thin delicate leaves that are easy to burn with hot sun, so the plant prefers filtered light during hot season.

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Ixora Thai Snow is an attractive large shrub, which can grow up to 5-10 feet tall. A slow grower, it also makes a great topiary and also does very well as a potted plant, making it a perfect choice for home gardeners. The foliage is ornamental and glossy, medium to deep green with variegation from splashes and speckles of white to almost solid creamy white new growth. The attractive white to near white star-shaped flowers, which blooms in clusters in the early summer, are very fragrant, attracting hummingbirds and butterflies.

This plant thrives in full sun or partial shade and prefers regular water, but can tolerate moderate water. The Ixora Thai Snow is hardy in USDA Zones 9-11 and can be grown in cold regions if grown in a pot and brought inside during colder months. When grown in a pot and kept indoors, the plant should be placed in a light, and evenly humid location. This will help prevent any potential pest or disease issues and allow it to thrive. Watering should be done when the soil feels dry to the touch and fertilizer should be used once every two weeks.

New hybrid with twisted waxy leaves, small to medium shrub. Slow growing, dwarf habit, can be used for bonsai.

Learn more about ixora plants: Ixora - the Star of Southern Landscapes.