Mosaic stone, a genus of oleander family

Morphological characteristics: evergreen woody vines, stems with inconspicuous lenticels. Branchlets, young petioles and leaves abaxially pubescent, old branches and leaves glabrous. Leaves leathery, elliptic to ovate-elliptic or broadly Obovate, 2-6cm long and 1-3cm wide. The old leaves are nearly green or light green, the first round of new leaves are pink, a few have 2-3 pairs of pink leaves, the second to the third are pure white leaves, and there are several pairs of variegated leaves between pure white leaves and old green leaves.

Biological characteristics: mosaic collaterals are light-loving, strong shade-tolerant plants, like acidic and neutral soil environment with high air humidity, good drainage, strong disease resistance and exuberant growth, similar to Chinese native collaterals. at the same time, it also has a strong ability to resist drought, short-term flood and cold. The change of leaf color is related to light and growth status, and bright color performance needs good light conditions and exuberant growth conditions.

Application: Huaye Luoshi can realize open-air cultivation in the south of the Yangtze River basin. In order to survive the winter safely, appropriate protective measures can be taken, such as increasing light, mainly applying nitrogen fertilizer from March to August to promote plant growth, applying appropriate amount of phosphorus and potassium fertilizer in September and early October to promote plant health, and forbidding pruning in October. If it is used as an indoor potted ornamental plant, it can be used in any area, especially in areas with better light conditions.

The use of landscape: the ornamental value of flower and leaf stone is reflected in three levels of leaf color, that is, the color group composed of red leaves, pink leaves, pure white leaves, variegated leaves and green leaves, which is very similar to a cluster of flowers in full bloom, extremely gorgeous and colorful, especially in spring, summer and autumn. In order to achieve the best color effect, intensity pruning is needed in spring to promote sprouting, increase ornamental branches and form compact clumps of plants. In the garden, it is an extremely beautiful ground cover plant material, which can be planted in the isolation zone under urban street trees; or covered with vines for slope protection; it can also be used as a perennial "flowering" plant for various flower mirror arrangements; at the same time, it is also an excellent potted plant material, which can replace the current potted flower scenery in parks and modern facilities, so as to overcome the shortcomings of short viewing period and high cost of potted flowers. In addition, it can also be used as an excellent ornamental plant for family potted plants.