Kalanchoe only grows leaves but no flowers

Kalanchoe only grows leaves but no flowers

1. Proper lighting

Reason: It is not heat-resistant during the flowering period. Excessive light or long exposure time may cause the plant to have lush branches and leaves but sparse flower buds and small flowers. If the lighting time is less than 4 hours, poor growth will occur due to insufficient light, especially in the growing season to ensure sufficient light.

Solution: Use the short-day method, that is, keep the daily light time at 4-8 hours. The light time during the growth period can be longer than the flowering period. Generally, flower buds will appear on non-flowering plants about a month after short light exposure.

2. Adjust fertilization

Reason: Its flowering period is relatively long, and some plants can bloom for up to 6 months, so it is a fertilizer-loving plant. If the fertilizer is insufficient, it may result in fewer flower buds and difficulty in flowering.

Solution: Ensure sufficient fertility. Generally, nitrogen fertilizer is the main fertilizer applied during the growing season. Nitrogen fertilizer can also be applied once after flowering, which is beneficial for post-flowering maintenance and growth in the next year. Before flowering, nitrogen, phosphorus and potassium compound fertilizer or potassium dihydrogen phosphate aqueous solution can be applied to promote bud differentiation and blooming of flowers. However, do not apply too much fertilizer. Apply it in small amounts frequently. Try not to apply the fertilizer on the leaves, as this will cause leaf rot.

3. Pinching and topping

Reason: If the purchased plants are not topped in time, apical dominance may occur, causing the branches and leaves to grow too long and slender, and the side branches to be poorly developed, so malnutrition makes it difficult to differentiate flower buds.

Solution: Remove the tender buds about 10 cm from the top of the newly purchased healthy plants or plants that are in the growth period. After a period of time, new side buds will grow, and the sturdy plants will be more likely to bloom.

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