How to raise the latest bluebells?

Campanulaceae, etc.

Growth habits of Campanula

Fengling steppe is produced in the north temperate zone, Mediterranean region and tropical mountainous areas. there are many cultivated and ornamental species, which require cool winter and summer, sufficient light and good ventilation, not resistant to dry heat, weak cold resistance, and like neutral soil with deep, fertile and good drainage. It can also grow normally in slightly alkaline soil.

Propagation method of Campanula officinalis

The main results are as follows: 1. Bluebell grass is mainly sown and propagated, the seeds are small, the soil cover should not be too thick, and the optimum temperature for germination is 20-24 ℃. After flowering, it forms a capsule with many seeds, which can be dried and stored in the sun. In spring or late winter and early spring, sow seeds in a plastic shed. It can also be sown in autumn. Generally, the seedlings sown in autumn need to be cultivated to the spring and summer of the following year before they can blossom.

2. According to the requirements of small seeds, soil preparation should be meticulous, crushing the soil deeply for more than 2 times, scraping the ground flat, drenching enough water, and then sowing the seeds evenly, no longer covering the soil or thinly covering the sieve fine soil after sowing. Spray water with sprayer in the seedling stage, and replenish the seedlings according to the growth of the seedlings. The seeds can also be sown in a sand table, and compound fertilizer can be applied immediately after seedling emergence.

3. When the height of Camellia oleifera seedlings is about 10 cm, they are transplanted to the nursery or planted in pots, and the row spacing of the plants planted in the nursery is 20x40 cm. After transplanting, the seedlings are drenched and watered, and then managed according to general management.

4. Campanula can also be divided or cut to raise seedlings, which is more than in autumn. After being cultivated for one winter, it can blossom the following year. The cuttings are more than the new buds germinated at the base in spring, inserted into the wet sand bed, often sprayed to moisturize, and transplanted after rooting.

Culture method of bluebells

1. Soil: bluebells like relaxed, fertile and well-drained loam.

2. Watering: bluebells should maintain a relatively high relative humidity before the radicle appears, and the substrate should also be relatively moist. If necessary, the newborn seedlings can be covered with a layer of coarse-grained vermiculite to moisturize.

3. Sunshine: bluebells like long sunshine, which can blossom naturally after 14 hours of sunshine every day. If you want to bloom ahead of time, you only need to break for 4 hours and deal with it in dark for 30 days.

4. Fertilization: if bluebells want to grow fast, they can apply 30 to 50PPM of calcium and nitrogen fertilizer, and then apply calcium fertilizer on the basis of it to make it grow fast.

5. Insect pests: the common diseases of bluebells are powdery mildew, leaf spot and rust, which can be sprayed with 1500 times diluted carbendazim wettable powder. The pests are mainly caused by aphids and thrips, which are sprayed with 1500 times diluted omethoate EC.

6. Pruning: bluebells do not need growth regulation and coring treatment. The appearance of bluebells is messy in the early growth process, but it will naturally adjust neatly and compactly in the later growth process, so there is no need for special pruning adjustment.