Campanula is a cool-loving plant. It is best to sow in late summer. After slow growth in winter, the whole growth process can be completed in spring. In this process, the daily illumination time should be at least 14 hours, and flowers can bloom in about 30 days, and the viewing period will be longer.
2, seedling maintenance:
After sowing, the seedlings can be transplanted when they grow small roots. Just choose a shallow flowerpot. Be careful not to break the root system when planting. If the seedling grows to about 5 cm, it can be transplanted into a flowerpot of about 10cm. After the roots are full of pots, you can change pots. Do this 2~3 times, and you can harvest a pot full of bells.
3. Water and fertilize:
The seedlings of bellflower should be kept high humidity, watered frequently, and covered with vermiculite when necessary to keep moist. But when watering, don't water the seedlings occasionally, lest the stems of the seedlings be washed off by the current. To promote its rapid growth, the application amount of calcium and nitrogen fertilizer can be appropriately increased, and then phosphorus and potassium fertilizer can be applied.
4, light temperature curing:
The genus Campanula likes long sunshine, and it can blossom naturally when the sunlight is above 14 hours. If you want to blossom ahead of time, you only need to do dark treatment 30 days before flowering, 4 hours a day. There is no need to control the plant type, and it is short in nature, and the appearance of bellflower will be messy in the early stage. Don't trim it, let it grow slowly, and it will be neat and compact later.
5. Precautions:
(1) patience.
It takes two winters for hyacinthus orientalis to blossom, so it takes patience to cultivate hyacinthus orientalis, especially in hot summer weather, which can easily lead to plant withering.
(2) sun protection.
Potted hyacinthus orientalis should not be placed on the back of high-rise buildings to prevent sun exposure, and water spraying on leaves should be strengthened in time to cool down. It is also a sunny plant, so it can't be kept in the shade for a long time without light.