The bellflower is also called the wind chime hibiscus, the bell-shaped bellflower, and is also called the orangutan flower in parts of Yunnan. Campanula is a biennial herb, which is relatively cold-tolerant, avoids heat, and is fertile to the sun, well drained, sandy loam, but requires a lot of water during growth. It grows well in neutral or alkaline soil, and it blooms when the plant is more than 1 meter.
Cultivation points of Campanula : The growth temperature is generally about 5 to 20 degrees. It is planted from September to mid-September. The planting width is 50 cm and the plant spacing is 25 cm. Or potted plants with 6-7 inch pots in the cold bed overwintering. It is better to use fertile neutral soil. Appropriate application of three elements in the spring of the next year. The whole fertilizer is 3-5 times.
Sowing time of campanula : Generally, it can be sown all year round. The temperature of the bellflower germination is 18-25 degrees Celsius. The seeds are very fine. It can be sowed or potted with peat board. The surface of the seed is about 2-3 times the diameter of the seed. After the sowing, 10-20 sunrise seedlings, the leaves are unfolded, the seedlings can not touch the seedlings, the sunshine must be sufficient, the temperature is not high, and the fertilization is 2-4 times with growth. When the leaves are 3-4, they are faked. Potted plants should be turned into pots every spring, and the branches are short-cut to promote the side branches, so that only more flowers.
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