What are the ground cover plants widely used in zoos?

Common ground cover plants are alfalfa and alfalfa.

Alfalfa is a perennial herbaceous ground cover plant in Leguminosae, and it is recognized as the "king of pasture" in the world. Alfalfa likes warm and semi-arid climate, and the optimum growth temperature is around 25℃. Alfalfa is a plant that needs more water, and its root system has strong drought resistance. Alfalfa grows best in warm and dry places with irrigation conditions. Summer is the most unfavorable for alfalfa growth, because it is rainy and humid this season. Alfalfa is suitable for all soils except heavy clay, low moisture soil and strong acid and alkali.

Alfalfa grows slowly at seedling stage and is vulnerable to weeds, so weeds should be removed in time. Alfalfa usually rotates for 2-4 years. The cultivation period is too long, not only the yield is low, but also the root system is huge, so it is difficult to plough. Broadcast in Yichun or northern provinces in summer. Sow in Northwest China, Northeast China and Inner Mongolia from April to July, no later than early August. The sowing time in North China is from March to September, and August is the best. Alfalfa can be drilled, sown or sown on demand, and drilling is the best. Generally, the sowing amount of 667 m2 is1.00 ~1.50kg..

February orchid, usually cultivated by plants.

February orchid is a biennial herbaceous ground cover plant, which grows in the shade under the forest. It has low requirements for soil illumination and other conditions, and is cold-resistant and drought-tolerant, with strong vitality. February orchids can be planted next to the stones in the garden, adding a lot of color to the pastoral scenery of the garden.

February orchids are mainly propagated by seeds, with strong regeneration ability and strong weed resistance. So artificially sown seeds can also become seedlings. Orchids are easy to manage in February, and only need to be given enough water every autumn, which does not affect winter seedlings. Moreover, February orchids cannot be trampled on, so the place where February orchids are planted should be closed for management. The flowering period of February orchid begins from February to March every year and lasts until June of that year. In the meantime, the flowers will continue to bloom and the fruits will mature in May and June. When the fruit is ripe, it will automatically bounce off and spread the seeds widely, that is, it can be planted every year. Therefore, it is not necessary to plant it every year, and the sowing amount is 2 ~ 3 g/m2.

Common ground cover plants used for planting plants.

Kochia scoparia is a kind of herbaceous ground cover plant 1 year old, also known as broom and malachite, belonging to Chenopodiaceae. Kochia scoparia has strong adaptability, grows in warm and sunny places, and is drought-resistant, but not cold-resistant, and more resistant to alkaline soil.

Kochia scoparia is sown in early April. Kochia scoparia is not resistant to transplantation and should be carried out in the open field. It is best to apply some calcium superphosphate when sowing to ensure strong roots. It can also be propagated by cutting. After transplanting the seedlings once, they will be planted in the garden or flower bed in early June. Because it is directly rooted, it should be planted in time, otherwise the plant growth will be difficult to recover. The plant spacing is generally 40.00~60.00 cm. Kochia scoparia needs to be fertilized 2 ~ 3 times a year. The growth rate of Kochia scoparia was slow at seedling stage, with an average of 0.52 cm/d, and fast at full flowering stage, with an average of 2.97 cm/d, and it began to slow down at full flowering stage.

Red pig excrement beans, usually cultivated by plants.

I like sunshine and humid environment, and the flowers in places with insufficient sunshine are reduced. Strong adaptability to soil, vigorous growth in fertile soil, thick leaves, tall plants and bright colors. Not drought-tolerant, wintering in the north needs protection. Suitable for planting green flower beds in pieces, or beside rocks in roadside and rock gardens. The underground stems of oxalis oxalis spread quickly, and the ramet propagation is very easy, which can be carried out all year round, even at flowering stage. After planting, the root soil is compacted and watered adequately, and the survival rate is extremely high. Easy cultivation and extensive management.

Ophiopogon japonicus, a widely planted plant.

Ophiopogon japonicus is a perennial herbaceous ground cover plant, which likes warm, humid, semi-cloudy and well-ventilated environment. Suitable for sandy loam, clay loam and saline-alkali soil containing humus, with fertile soil and good drainage. In nature, it is often wild beside gullies and streams and in mountains and grasses, with strong cold tolerance, and can also survive the winter in the open field of the Yangtze River basin in China.

Ophiopogon japonicus can be divided into plants and propagated by sowing. Reproduction mainly depends on ramets. Combined with basin changing in March and April. Every 3 to 4 years, the plants are divided into 1 time, and the leaves are cut short. After plant division, each plant should have 3 ~ 5 tillers, and the plant spacing is about 30.00 cm. In early spring, the seedbed is ditched and exposed, the row spacing is 15.00 ~ 20.00 cm, each hole is covered with 3 ~ 5 seeds, and the soil is about 2.00 cm, and it is kept moist. After sowing 10 d, the germination rate can reach about 80%.

That year, it can only grow into thin leaves. In the second year, the leaves are thickened and encrypted, and the seedlings can be transplanted in the early spring of the third year. Ophiopogon japonicus, whether planted in a pot or in the ground, is very simple and does not need careful management. However, it needs a well-ventilated semi-cloudy environment, the soil should always be moist, and water should be sprayed frequently in the dry season in the north, so that the leaves can be oily, green and shiny. If the air is too dry, the leaves tend to have dry tips. Resistant to drought, water and humidity, but if the basin soil accumulates water for a long time, the fleshy roots and underground stems will also rot. Because of its rapid growth, in addition to applying sufficient base fertilizer when planting, topdressing should also be applied during the growth period, and it is best to topdressing liquid fertilizer 1 time every month. Pay attention to weeding. In summer, potters should be placed under a shady shed to avoid direct sunlight. In a hidden environment, the night is green. Potted Ophiopogon japonicus usually needs to turn over the pot/kloc-0 times every two years, otherwise the underground fleshy roots will cover the whole pot and push the pot soil out of the pot surface, and the roots will gradually die and the leaves will turn yellow. Therefore, it is necessary to cut off the old leaves, remove the peripheral 1/3 ~ 2/3 perennial roots, keep the new buds, and then replace them with new soil. In addition, Ophiopogon japonicus has strong stress resistance and is not prone to pests and diseases.

Hemerocallis Hemerocallis Hemerocallis, a common ground cover plant.

Alias worry-free girl, Wang Yu, etc. , widely cultivated. Perennial perennial flowers germinate in spring, with beautiful branches and leaves, stems higher than leaves and bright colors. Can be planted on roadsides, hedges and sparse forests. It is propagated mainly by ramets, but also by sowing or cutting. Most ramets are divided in autumn, and flowers bloom in the following summer. Sowing needs to germinate after low temperature in winter, generally sowing in autumn. Spring sowing needs sand storage treatment, and the germination is neat and consistent. After flowering, the stems and buds of cuttings are easy to survive and can bloom in the next year. The planting spacing is 50~60cm, and sufficient base fertilizer is applied before planting. Strong adaptability, simple cultivation management, no need for special management within 3-5 years of planting, and later planting renewal.

White clover commonly planted by plants

White clover is a perennial herbaceous ground cover plant of Trifolium in Leguminosae. White clover likes humid climate, and the optimum temperature for its growth is 19 ~ 24℃. Compared with other clovers, white clover has wider adaptability, better heat resistance and cold resistance, and grows well in the shade of orchard trees. It is not strict with soil, barren-resistant, acid-resistant, suitable for soil pH 6 ~ 7, but not salt-resistant.

White clover seeds are very small. Before sowing, the soil must be carefully prepared to remove weeds. Apply 1 500.00 ~ 2 000.00 kg organic fertilizer as base fertilizer every 0.067 hm2, and inoculate clover rhizobia. Spring sowing or autumn sowing can be used, and autumn sowing is suitable in the south. The sowing date should be no later than the middle period of 10. If it is too late, it is easy to get frostbite in winter. The sowing amount is 0.25 ~ 0.50 kg per 0.067 hm2. Drilling and broadcasting can be used. The row spacing of drilling is 30.00 cm, and the sowing depth is 1.00 ~1.50 cm. White clover is most suitable for mixed sowing with perennial ryegrass, duck grass, oxtail grass and pig tail grass, which increases grass yield and is beneficial to grazing and utilization. White clover has strong reproductive ability and can be used for transplanting and turf building.

Horseshoe is usually planted by plants.

Horseshoe-shaped metal perennial herbaceous ground cover plants have wide adaptability, developed fibrous roots and more stolons and internode roots, which can form a dense ornamental lawn. Horseshoe-shaped metal warm-season lawn, spreading through underground stems, with kidney-shaped leaves and a size of about 1.20 cm. In a cool place, the leaves are slightly larger and the stems are slightly longer. Horseshoe grows densely, looks like white clover, and is about 3.50~5.00 cm high. Dictyophora dictyophora adapts to all kinds of soil and grows well in light or shade.

Horseshoe gold can only withstand slight trampling. When the temperature drops to -6 ~-7℃, it will be frostbitten. Once the horseshoe gold is planted successfully, it can thrive and bear fruit on its own. The advantages of horseshoe gold are: first, horseshoe gold can grow in areas where Bermuda grass can not survive, such as full shade or partial shade; It is colder than Bermuda grass and has a longer green period. Second, the growth is slow. Moreover, it doesn't need to be mowed as often as Bermuda grass. Finally, the shortcomings of growth are spread through underground stems and their own strength. But there are still some shortcomings, such as slow establishment and intolerance to trampling. The planting density of horseshoe gold is 10 ~ 15 g/m2. Weeds should be eliminated before sowing and fertilization, and it is more suitable for planting in May-August, and nitrogen fertilizer should be applied appropriately.

Small crown flower usually cultivated by plants.

Crotalaria microphylla is a perennial herbaceous ground cover plant of Crotalaria in Leguminosae. Small crested flower has strong drought and cold tolerance, but it can reproduce asexually and survive at -34℃. In addition, the small crown flower is relatively heat-resistant. Small crested flowers can also survive in poor soil. Strong salt tolerance at seedling stage. It grows well in neutral or weakly alkaline soil. Small crested flowers are not tolerant to waterlogging. If flooded for 3 ~ 4 d, the roots will rot, leading to plant death.

Small flowers with crested feathers can be propagated by seeds or by branching roots. Before sowing, the seeds should be peeled or the seed coat cut, and it takes two growing seasons for the seedlings of the small crown flower to be completely covered. Small crown flowers are not resistant to trampling and are often pruned. The small crown flower is beautiful in appearance, and the color varies from light red to purplish red when it blooms.