Growth habits of primrose

Primrose and plum blossoms, daffodils and camellias are collectively referred to as "four friends in the snow". They are one of the common flowers in China, which have always been loved by people, with dignified and beautiful colors, extraordinary temperament, no fear of cold power, no choice of customs, and strong adaptability. They have always been loved by people. Let's take a look at the growth habits of primroses.

Growth habits of primrose

Primroses like light, slightly resistant to shade, slightly resistant to cold, and afraid of waterlogging. They can survive the winter in open fields in North China and Shanling, requiring warm and humid climate, loose, fertile and well-drained sandy soil, exuberant growth in acidic soil, poor growth in alkaline soil, strong root germination and easy rooting of branches.

Propagation methods of primrose

1, cutting: spring, summer and autumn can be carried out, cut semi-lignified branches 12-15 cm long, inserted into the sand, keep moist, about 15 days to take root.

2. Striping: the longer branches are shallowly buried in the sandy soil without scratching, take root after 40-50 days, and separate and transplant from the mother plant in the following spring.

3. Ramet: it can be carried out when the buds sprout in spring, and part of the aboveground branches should be cut off when transplanting in spring, which needs to stay in the soil, or can also be planted dry, that is, it can be watered after cutting in the whole seedbed, and the cutting can be carried out from mid-October to mid-November or in spring.

Variety classification of primrose

1. Red Jasminum: red Jasminum, also known as safflower jasmine, climbing shrub, young branches quadrangular, striped. Simple leaves alternate, ovate-lanceolate, apex acuminate. Cymes 3-flowered terminal, Corolla red to rose red, fragrant. Flowers and leaves bloom together, flowering in May, produced in Sichuan, Yunnan, Guizhou and other provinces.

2. Vegetarian flowers: Suxin flowers, also known as jasmine, erect shrubs, branches drooping, angled. Leaf blade opposite, pinnately compound, leaflets 5-7, elliptic or ovate, apex acuminate. Flowers solitary or several in Cymes terminal, white, fragrant. The florescence is from June to July and is produced in Yunnan and Guangxi. It is distributed in Vietnam, Myanmar, Sri Lanka and India.

3. Spring flowers: spring flowers, also known as Yingxia, semi-evergreen shrubs, branches open, arch drooping. Odd-pinnate compound leaves alternate, leaflets 3-5, ovate or oval. Flowers yellow, into terminal many-flowered Cymes. Berries elliptic-ovate, green-brown. Flowering in May, fruiting in December, originating in central and northern China.

4. Jasminum Huang: also known as Yingchun in Yunnan, evergreen rattan shrubs, branchlets glabrous, square, with shallow ribs. Leaf blade opposite, 3 leaflets, long elliptic-lanceolate, apical 1 larger, base attenuate with a short stalk, lateral 2 small and sessile. Flowers solitary, yellowish, with dark spots, petals longer than tube, often close to compound petals, fragrant. Flowering from March to April, originally from Yunnan, is now cultivated all over the country.

5. Square flowers: square flowers are semi-evergreen shrubs, branchlets thin, angled, leaves opposite, pinnately compound, leaflets 5-9, ovate or lanceolate, apex sharp. Cymes terminal, with several flowers, white, fragrant. Flowering from June to July, produced in Sichuan, Yunnan and Xizang.