Plectranthus Plectranthus

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Plectranthus Plectranthus
Plectranthus Plectranthus
Video: Plectranthus Plectranthus
Video: Плектрантус (Plectranthus) . Уход и содержание в домашних условиях 2023, February
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The family of labiates. Native to tropical regions of Africa, Asia, Japan, Australia and Polynesia. About 250 species are widespread in nature. Plectrantus are mainly herbaceous plants, sometimes shrubs. Many are grown as ampelous in hanging baskets. Leaves are opposite, usually ovoid on very short petioles, sometimes almost sessile. The structure of the flower is typical for all species: the corolla is double-lipped, the upper lip is short, bent, four-lobed, the lower one is long, one-lobed is narrow-navicular. Four stamens are cut in pairs - two are long, two are short.

The name of the genus Plectranthus, translated from Greek means: plectron - spur and anthos - flower. This is due to the fact that the corolla tube of the plectrantus flower is swollen and looks like a spur. Plectranthus shrub Plectranthus fruticosus is popularly referred to as "molar tree" - for its ability to scare off moths. Plectrantus is also called Scandinavian or Swedish ivy - it is especially popular in Scandinavia, where it is grown like ivy in hanging baskets.

There is a huge confusion about the names of plectranthus species, one species has many synonyms, but the botanically correct ones are not the ones that we are used to using. For example, coleus-shaped plectrantus, it is correct to call it Madagascar. And Plectranthus australis is not entirely southern, the correct name is Plectranthus verticillatus (see The Royal Horticultural Society).

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  • Plectranthus shrub Plectranthus fruticosus is a tall shrub, up to 1 m tall, with highly branching pubescent shoots of a tetrahedral shape. Leaves up to 10 cm long, ovoid, with a heart-shaped base and double-serrate along the edge. The leaves, also pubescent, have a strong odor. The flowers are lilac, fragrant, about 1 cm in diameter, collected in loose apical inflorescences.
  • Plectranthus oertendahlii is a herbaceous plant with creeping shoots about 50 cm long. Leaves up to 7 cm long, round-ovoid, crenate at the edge, dark green with light veins, reddish on the back, pubescent. The flowers are white or lilac, up to 1.5 cm in diameter, collected in loose apical inflorescences. There is a variety Plectranthus oertendahlii 'Uvongo' - it has almost the entire leaf surface of a silvery-green color and only a dark green canvas remains along the edge.
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  • Plectranthus verticillatus is very similar to Ertendal's plectrantus, but differs in that its leaves do not have pubescence and are lighter green in color. Leaf shape is ovoid, almost round. The petioles of young leaves are green, the petioles of old leaves, as well as the stems are dark purple. The flowers are white with purple dots on the inside.
  • Plectranthus madagascar Plectranthus madagascariensis is a shrub with creeping shoots reaching a length of 80-100 cm, grown as an ampelous plant. Tetrahedral pubescent shoots. Leaves about 6 cm long, ovoid, crenate at the edge, also pubescent. The leaves of the original species are light green. There are several varieties, for example, Plectranthus coleoides 'Marginatus' - with a white border on the leaves, variety 'Green on Green' - a yellow border with a greenish tint. Synonyms Plectranthus forsteri, Plectranthus coleoides.
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  • Plectranthus hadiensis var. Felt Plectranthus hadiensis var. tomentosus is a bushy plant with gradually drooping shoots. The leaves are light green, broadly ovate, crenate along the edge, like the stems, densely covered with short hairs, have a mint aroma. At first glance, the plants look miniature, but this is only at first glance, in natural conditions the bushes reach a height of about 75 cm, and the leaves are 9 cm long. This species is photophilous, requires very good lighting - it can, and should, grow with sunlight. In fact, it is grown like a regular succulent. By the way, there is a variegated variation of Plectranthus tomentosa variegata - the leaves are light green with a creamy canvas along the edge. This species is often called Plectranthus pubescent, it went from the old outdated name (basionym) - Plectranthus tomentosus.
  • There are also hybrids among Plectranthus, for example, the Plectranthus hybrid 'Mona Lavender' - it has erect shoots, it grows not ampelno, but always in a bush. Leaves along the edge are not crenate (rounded notches), but serrated. It blooms very profusely with long tubular lavender flowers (pink-lilac). At first glance, this hybrid looks like a shrub plectranthus, but still differs: in smaller size, the teeth on the leaves of Mona Lavender are more rare, the leaves themselves are smaller - up to 5 cm in length.

Plectrantus care

Temperature: Plectrantus is a plant of moderate temperatures, in summer it prefers about 22-26 ° C, at higher temperatures it quickly loses the lower leaves. In winter, prefers a cool content at 12-14 ° C, at least 10 ° C.

Lighting: Bright diffused light, light partial shade in summer, very good lighting is needed in winter, additional lighting with fluorescent lamps is possible, especially if plants are kept in winter at temperatures above 18 ° C. Plectrantus needs protection from direct sunlight from 11 to 16 hours. The east and northwest window is suitable for many species.

Watering: Plectrantus is watered quite abundantly in summer, but only after the top layer of the earth dries out. Plectrantus with fleshy leaves are especially sensitive to overflow. In winter, when the content is cool, watering is very moderate, with good drying of the soil.

Fertilizer: From March to September, they are fed with a complex fertilizer for ornamental deciduous plants, about once every 3-4 weeks. During the budding period, the plectrantus needs to be fed with fertilizer for decorative flowering plants, especially abundantly flowering species and hybrids.

Air humidity: Plectrantus is undemanding to air humidity, does not need spraying.

Transfer: Annually in the spring. The soil is slightly acidic, approximate composition: 1 part of humus, 2 parts of leafy soil, 1 part of turf and 1 part of sand. Be sure to pour drainage on the bottom of the pot. The roots are not very strong, the pot should not be too deep.

Plectrantus care also consists in periodically pruning the shoots, or rejuvenating the bushes, if the stems are bare in the lower part. Pruned cuttings are also used for reproduction.

Reproduction: Stem cuttings in spring and summer. Cuttings root quite easily in water at any time of the year. Plectrantus tolerates pruning well, but over time, especially when kept in a warm room in winter, the stems become bare in the lower part, in this case, it is better to renew the plant from cuttings - cut off all the apical cuttings, and after rooting, plant it again in one pot.

Plectrantus is also grown as a ground cover plant. To do this, it is planted in several cuttings in one wide pot. To give a bushy and more compact shape, the growing ends of the shoots of the plectrantus must be pinched. You can plant plectrantus on large tub plants if they have enough light, for example, to palms. At the same time, it is important to plant in very fertile soil and feed during the growing season.

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