Columnea Columnea

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Columnea Columnea
Columnea Columnea
Video: Columnea Columnea
Video: Колумнея 2023, February
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The Gesnerian family. The genus has about two hundred species, perennial epiphytic grasses or shrubs. Homeland - tropical regions of America. Some common species have become the material for beautiful hybrids and varieties.

Columnea glorious Columnea gloriosa is an epiphytic semi-ample plant native to Costa Rica and Panama. Fleshy shoots, gradually woody, up to 60-70 cm long. Leaves are ovoid, about 2 cm long, green or reddish, covered with short hairs, sitting on the stems very tightly to each other. The flowers are axillary, tubular, scarlet-red, with yellow spots at the base.

Columnea linearis Columnea linearis is a shrub native to Costa Rica. Stems about 50 cm long, thick. Leaves are lanceolate, narrow, up to 10 cm long and 1 cm wide, dark green, on very short petioles. Flowers are single, axillary, two-lipped, up to 6 cm long, bright pink, covered with short white hairs.

Columnea pubescent Columnea hirta is an epiphytic semi-ampelous plant native to Costa Rica and Panama. With little branching reddish shoots, up to 80-90 cm long, covered with short hairs. The leaves are opposite, on short petioles, fleshy, velvety green, ovoid, also covered with short hairs. The flowers are orange-red, axillary, with a narrow tube, about 3-7 cm long. 'Light Prince' has creamy leaf spots.

columbia
columbia
columbia
columbia
columbia
columbia

Columnea care

Temperature: Normal in summer, about 20-25 ° C, if very hot (above 26 ° C, it is better to move the plant to a cooler place). In winter, it is preferable to keep it cooler at 18-19 ° C, at least 16 ° C, preferably no higher than 20-21 ° C. Despite the fact that the columbus is a thermophilic plant, the winter period of rest for a month or two, with a cool content, is necessary for the establishment of flower buds.

Lighting: Columnea loves bright, diffused light, shaded from direct sunlight in spring and summer during the hottest part of the day from 11 am to 4 pm. In winter, from September to February, the lighting should also be very good. In winter, the sun is low above the horizon, so it’s columier, even the direct sun on the southern window is not scary. But if the room is warm, and there is not enough natural light, the shoots of the columnea begin to gradually stretch out and become bare, so you need to provide additional lighting with fluorescent lamps.

Watering: In the summer, water abundantly, after the top layer of the earth dries up (about the upper third of the pot). Since autumn, watering is reduced, watered with warm water, when the soil in the pot dries out almost all. But complete overdrying of the earth is not allowed. Columnea is more demanding on air humidity than soil, therefore it is easier to tolerate drying of the earth than excessive watering. Columnea especially does not tolerate excessive watering when kept in cool conditions and / or poor lighting.

columbia
columbia

Air humidity: Optimally 60%, not lower than 50%, this humidity is natural in our apartments from the moment the heating was turned off in spring, and throughout the summer, except for very hot, dry days. But in autumn and winter, air humidity is usually not enough. You can spray not all columneas, but only those with sparse hairs, or completely bare leaves (most columneas have pubescence). In addition, spraying briefly humidifies the air. Therefore, it is necessary to place plants over wide trays of water, you can use a humidifier, or fence off the windowsill with plants from the battery, a sheet of plexiglass or film.

Fertilizers: Regularly from April to August, they are fed with a solution of complex fertilizers for flowering indoor plants in a dose half as much as for ordinary plants. Top dressing is carried out every two weeks. Fertilizers for Saintpaulias are well suited at the recommended dosage.

Transfer: Annually in spring, usually in hanging baskets or pots. In this case, the pot should not be too large, otherwise the roots may rot if watering is disturbed. In addition, columnei bloom better in a cramped pot. The soil should be light, nutritious, very loose - 2 parts leaf, 1 part humus, 1/2 part river sand, 1/2 part vermiculite, 1/2 part coconut substrate (or coconut chips). Fern roots and pieces of charcoal can also be added to the soil. Most of the columbus are epiphytes or semi-epiphytes, it is very important for such plants that the earth dries quickly and allows air to pass well. It is also important that the soil has a slightly acidic reaction.

Reproduction of columnea

Stem cuttings in spring and summer. Cuttings 5-10 cm long are cut from an adult plant. They are rooted either in water (some species easily form roots, others very slowly), or in soil consisting of 1 part of leafy (peat) earth and 1 part of sand. You can root the kolumnea cuttings in a glass with moist sphagnum moss.

You need to root the cuttings in small cups (about 8 cm in diameter). And always in conditions of high humidity. Those. you need to cover the pot with the handle with a jar, bag or cap (cut off the bottom from 5-6 liters of a transparent plastic bottle), but be sure to leave a gap for airing.

You will know that the stalk has taken root in the ground when a new young leaf grows on it. When the cuttings have grown enough, they can be transferred into large pots, in the ground for adult plants.

Columbus
Columbus

Growing problems

In general, columbia are unpretentious plants, if you choose the right soil, provide good diffused lighting, protect from the hot air of batteries in winter, then the plant will delight with green foliage and lush flowering.

But sometimes the plants get sick and wither. One of the signs of disturbed care is the appearance of brown spots on the leaves. This can happen for various reasons, the most common: over-watering, over-spraying the leaves (especially with cold water), cold draft, overfeeding with fertilizers, sunburn.

The composition of the earth also affects the correctness of watering. If you plant a plant in too dense soil, the earth dries out for a long time, which is unacceptable for a columnea. This plant is an epiphyte, its roots are thin, shallow, they like frequent moisture, but quick drying.

Worst of all, when they try to compensate for the insufficient humidity of the air with more frequent watering. From this, the roots partially rot away, the leaves turn brown and fall off.

In winter, columnea can only be watered with warm water, when its temperature is 3-4 degrees higher than the air temperature. By the way, it is better to use soft, boiled or filtered water for irrigation.

Of the pests, ticks and mealybugs most often threaten. If suddenly the leaves of the plant begin to dry, the stems become bare, take a magnifying glass and carefully examine the shoots. The mealybug can also be seen with the naked eye - white hairy lumps in the leaf axils. Fight with insecticides (actellik, aktara, confidor).

It is more difficult to detect a tick - first of all, look at the leaves in the lumen, point punctures and yellow (not brown) spots of irregular shape are evidence of arthropod damage. You need to fight with acaricides (apollo, vermitic, nissoran).

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