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What are the other names for Phlox drummondii? Phlox flower, five-color plum, grass oleander, etc.
Scientific name: Phlox drummondii. Other names: phlox flower, phlox, five-color plum, grass oleander, bellflower pink, foreign plum flower, small foreign flower, small sky-blue hydrangea. Family and genus: Polemoniaceae, Phlox genus. Origin: native to southern North America, now widely cultivated around the world. Origin of the name: the genus name Phlox means flame, because the original species of Phlox has red flowers. The species name was given to commemorate Drummond. Morphological characteristics: plant height 15 to 45 cm. Stems erect, much branched,
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Occurrence and Control Methods of Oleander Aphid Infestation
Morphological characteristics: The aphid belongs to the order Homoptera, family Aphididae. Wingless parthenogenetic female: body length 2.3 mm, width 1.2 mm, oval in shape, yellow in color, with distinct markings on the eighth abdominal segment. The body surface has obvious reticulate patterns. The median frontal tubercle is raised, with a flat top; the antennae have imbricate sculpturing and are 2/3 of the body length. The cornicles are long and tubular; the cauda is tongue-shaped, constricted in the middle, bearing 11-14 long curved hairs. Winged parthenogenetic female: body length 2.1 mm, width 1.0 mm, elongate-oval; head and thorax black; antennae 3/4 of the body length. Abdominal segments 2-4 have small marginal tubercles; cornicles are long and cylindrical.
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Cultivation Techniques and Daily Care Methods for Oleander
Oleander (Nerium oleander), also known as willow-leaf peach or half-year red. Belongs to the family Apocynaceae, genus Nerium. It gets its name because its flowers resemble peaches and its leaves resemble bamboo. The flower colors are gorgeous - either pink, like peach blossoms, full and vivid; or pure white, bright and clean as snow, sparkling and striking. It has been appreciated by people since ancient times. Cultivated everywhere, it is an excellent flowering shrub that blooms in summer and autumn and can resist pollution. (I) Morphological Characteristics and Varieties. Evergreen large shrub, plant height can reach 4 m to 5 m, crown spreading, branches upright and smooth, clumping
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Phlox, Drummond phlox, annual phlox, five-color plum, grass oleander, campanula pink, foreign plum flower, small foreign flower, small sky-blue hydrangea
Scientific name: Phlox drummondii. Aliases: phlox flower, phlox bloom, five-color plum, grass oleander, campanula pink, foreign plum flower, small foreign flower, small sky-blue hydrangea. Family and genus: Polemoniaceae, Phlox genus. Origin: native to southern North America, now widely cultivated in countries around the world. Origin of the name: the genus name Phlox means flame, because the original species of phlox has red flowers. The species name honors Drummond. Morphological characteristics: plant height 15 to 45 cm. Stems erect, much branched
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How do you make oleander form a "three-fork, nine-top" crown?
Oleander has whorled leaves in threes and is a typical three-fork brancher, meaning that after each pruning, 3 new shoots grow from the stem nodes. People can take advantage of this branching trait to prune and shape it so that it becomes a "three-fork, nine-top" plant. When the main trunk grows to a certain height, pinch off the top, and 3 main branches will grow from the main trunk. When the main branches grow to about 20 cm or more, keep 20 cm on each and pinch off the tops again to make them sprout new shoots. On each main branch, keep another 3 branches, keep 20 cm to 30 cm on each branch, and cut off all the upper branches.
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How to propagate oleander? A few practical propagation methods to teach you
Oleander blooms from May to October, with a flowering period lasting as long as half a year, hence it also has the elegant name "Half-Year Red." The main means of propagating oleander are cuttings and sowing. 1) Cutting propagation. During shaping and pruning, the small side branches sprouting from the main trunk of the oleander should be regularly cut off, so that they do not interfere with the tree shape and consume nutrients. Using these small side branches as propagation material, they are most likely to survive after cuttings. These small branches are all relatively short; although thin and weak, their tissue is relatively plump, and they also carry terminal buds, so they take shape quickly after rooting. When cutting the above-mentioned cuttings
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How to control oleander aphids? Aphid control methods for garden ornamental trees
Distribution and damage The oleander aphid Aphis nerii Boyer de Fonscolombe, also known as the oleander yellow aphid, belongs to the order Homoptera, family Aphididae. It is distributed in Changchun, Shenyang, Baotou, Taiyuan, Ningbo, Guiyang, Urumqi and other places. It pierces and sucks sap from the new shoots and young leaves of oleander plants, affecting normal plant growth and flowering. Morphological characteristics: wingless female aphid body length 2 mm, body apricot yellow, antennae dark brown, legs black, cauda tongue-shaped, with 11-14 curved hairs. Winged female aphid oval, head and thorax black,
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How to treat oleander leaf spot? Detailed methods for disease control in medicinal plants
Oleander, scientific name Nerium indicum Mill., is a woody plant of the family Apocynaceae. Its leaves and flowers are used as medicine; it is toxic. It has the effects of strengthening the heart and promoting diuresis, eliminating phlegm, and killing insects. It is distributed in most provinces and regions across the country. Symptoms mainly affect the leaves. At first, small purplish-red spots appear at the leaf tip or leaf margin, and after expanding they form circular, semicircular to irregular brown lesions. The lesions have concentric rings. In the later stage the center fades to white, and the red-brown margin is relatively wide. When humidity is high, a grayish-brown mold layer can grow on both sides of the lesions, namely the pathogen's conidiophores and conidia. The disease
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Medicinal Value and Floral Characteristics of Oleander
I. Origin: Apocynaceae (Nerium indicum Mill.). Also known as willow-leaf peach, half-year red, peach bamboo, pen peach. It was introduced to China for cultivation a very long time ago; as early as the Ming Dynasty's "Pingfang Pu" there are records of oleander. Although China is not the homeland of oleander, it has a cultivation history of more than 500 years to date. Growing oleander is not troublesome, so pot cultivation is very common in both the south and the north. In all areas south of the Yangtze River basin in China, it can be cultivated in the open field; in Chongqing it is close to a wild state, and can be seen everywhere.
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How should potted oleander be pruned and shaped
Oleander leaves are borne in whorls of three and it has typical three-forked branching: each time it is pruned, 3 new shoots grow from the stem nodes. People often use this branching trait to shape and prune it, so that each plant keeps 3 main branches on the trunk, and each main branch keeps 3 more branches, the tree form commonly known as "three forks and nine tops". After a potted oleander has established, the first pruning can generally be done according to the plant's height and personal preference, choosing and keeping a trunk of 30-40 cm and pinching it to encourage side branches. When the new shoots grow to 4-6 cm long, choose 3 appropriately positioned thick branches and remove the rest
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