Black Prince fleshy growth more than a year and a half, some will grow arrow, arrow flower bud growth months after flowering. It blooms regardless of season, as long as the light and temperature reach it.
Plant underage: the black prince you bought back may be just planted. It looks like a long and big young plant, which needs to be raised for a period of time or can blossom.
Low temperature: the flowering temperature of Prince Hei is above 25 ℃. If the temperature is not high or the overall difference of the maintenance environment is large, it will not bloom.
Diseases and insect pests: Prince Hei was attacked by diseases and insect pests. He was too busy with his wounds to support the growth of flowers and arrows.
It's not necessary to cut off the arrow. You can maintain a section of the room and observe the growth of the plant. If the plant grows normally and the arrow works normally, it's good to keep the arrow. But if the leaves wilt in large area and the color of the plant is dim, the arrow should be cut off in time.
After cutting off the flower arrow, appropriate P and K fertilizer can be applied to supplement the nutrients consumed by flowering. If the plant is rich in nutrients, the arrow can grow to 40-50cm, and the tall branches can blossom red flowers.
