At the first glance at Ruellia, thoughts inevitably come of its belonging to the Gesneriaceae family, the flowers are also very similar to the flowers of Streptocarpus (Streptocarpus). However, in reality, the genus Ruellia belongs to the Acanthaceae family. As a rule, this will be noticed when caring for the plant, since the Roell require a constantly warm content, while representatives of the Gesneriaceae family prefer a cooler and well-ventilated place. According to modern classification, this genus is attached to the genus dipteracanthus (Dipteracanthus).
Large-flowered Ruellia (Ruellia macranta) comes from Brazil and often reaches a height of 1-2 m there.
To the family of Ruellia, Ruellia (Ruellia) About 250 species of plants of the Acanthus family belong. Species are widespread in tropical and subtropical regions of America.
Representatives of the genus shrubs, shrubs and perennial herbaceous plants. The leaves are elliptical, ovoid, green and variegated. The flowers in the upper part of the shoots are located singly in the axils of the leaves or collected in several, purple, white, red, less often yellow.
Ruelia can be used to create a composition as a background plant in winter gardens.
It develops better in bright places protected from bright sunlight at a temperature of 12 to 25 ° C. The plant is decorative and in shaded interiors, where the contrast in the color of the leaves is most pronounced, but this occurs to the detriment of flowering.
Ruellia prefers bright light.
Very plentiful during the period of growth and flowering, the soil should be very moist all the time. After flowering, watering is reduced.
Easily propagated by cuttings all year round, without requiring any special conditions. Planted cuttings pinch for more active branching. Roullium is undemanding to soils; it grows well in turf and leafy soil, as well as in a mixture with horse peat. As a groundcover spontaneously renews, when grown as a pot, it needs annual renewal. Shoots that reach the ground, easily rooted in nodes.
If necessary, transplanted Roullia in the spring, in March-May, into a mixture consisting of turf and leafy soil, humus and sand.
Roellia is resistant to disease and pests.
© Tatters :)
Roullia prefers bright diffused light, suitable for cultivation at the windows of the western and eastern directions. At the north-facing windows, the plant may not have enough light in winter. At the windows of the southern direction, the plant should be shaded from direct sunlight. In the autumn-winter period, the plant responds well to additional illumination with fluorescent or white light.
The optimum temperature of the content from spring to autumn is in the range of 22-24 ° C. In autumn, it is recommended to lower the content temperature to 19-20 ° C, not lower than 18 ° C, for P. large-flowered about 16 ° C, not lower than 14 ° C.
Roullium is watered from spring to autumn abundantly, as the top layer of the substrate dries up, watering is slightly reduced from autumn, depending on the temperature of the content. The plant is sensitive to overdrying and waterlogging. Watering is done with soft, settled water.
The plant needs high humidity, so it is recommended to use humidifiers or place the plant on pallets filled with wet expanded clay or peat. In the autumn-winter period, make sure that the plant does not get dry and hot air from heating appliances. Suitable for growing in florariums and mini-greenhouses.
During the period of active vegetation, they feed the ruellium with complex fertilizers for decorative flowering once every two weeks.
Young plants transship annually. Adults transplant as necessary, when the roots will cover the entire earthen lump, in spring, in a loose substrate with a neutral reaction. The following mixture is suitable: sheet land (1 part), turf land (1 part), peat (0.5 part), sand (0.5 part).
© João de Deus Medeiros
Plants are propagated by seeds and mainly herbaceous cuttings.
Cuttings easily root in water or substrate at a temperature of 20-22 ° C. After rooting, young plants are planted in 3 copies in 9-centimeter pots. The composition of the earthen mixture is suitable as follows: turf - 1 hour, leaf and humus - 2 hours, peat - 1 hour, sand - 1 hour.
Large-flowered Puelia is propagated by grassy cuttings in January-February. After rooting, young plants are planted in 7-9 cm pots. The composition of the turf land is 1 hour, leaf and humus - 2 hours, peat - 1 hour, sand - 1 hour. Pinch shoots for branching. 1-2 transshipments are carried out and fertilized weekly with liquid fertilizers.
- Any, even slight drafts can cause leaf falling. Inadequate watering can also cause leaf fall. In this case, the leaves first lose turgor.
Dry leaf tips, leaves curl.
- The reason is dry air. Ruellia needs high humidity, otherwise the plant may even stop blooming and become sick.
The plant is bare and extended.
- The plant is prone to overgrowth, so from time to time it should be rejuvenated by cuttings.
© João de Deus Medeiros
Puelia Britton (Ruellia brittoniana)
Evergreen perennial 90 cm tall and wide, forms colonies. Strong semi-wood stems vertical. The leaves are opposite, lanceolate 15-30.5 cm long and 1.3-1.9 cm wide, dark green, in the sun the leaves acquire a metallic, blue hue. The flowers are tubular with an expanded end, purple-blue, about 5 cm in diameter.
Perennial herbaceous plants 30-50 cm tall. The leaves are elliptical, 3-5 cm long and 1.5-2.5 cm wide, dark green on the upper side, along the veins with a whitish pattern; from the bottom - reddish. Flowers solitary in leaf axils, 3-4 cm long, white, with bluish-blue stripes. Grows in tropical rainforests in Brazil. Blooms profusely in autumn and winter.
Ruelia macrantha (Ruellia macrantha)
Shrubs 1 - 2 m tall, densely branched. Leaves are ovate-lanceolate, 10-15 cm long, tapering at the apex and to the base, whole-edge, pubescent. The flowers are bell-shaped, large, 10-12 cm long and 8 cm wide, located in the upper part of the shoot, pink-purple. Grows in the upper zone of the mountains in the rainforests of Brazil.
A view close to Ruellia devosiana. It is distinguished by large pink flowers, 4–4.3 cm long and 2–2.5 cm wide, larger, 5–7 cm long and 3–5 cm wide, elliptical-ovate leaves, velvety brown on the upper surface, with a white stripe in the middle and almost white midrib, lower purple-red. Grows in tropical rainforests in Brazil.