Why do chrysanthemums always bloom in autumn, how to rescue if they do not bloom due to improper care?

The Blooming Time of Chrysanthemums

As one of the traditional famous flowers in China, chrysanthemums attract numerous horticulture enthusiasts with their unique blooming patterns. However, many people often encounter the problem of vigorous plant growth without seeing flower buds during the maintenance process. To crack this puzzle, we need to approach from the dual dimensions of plant physiological characteristics and maintenance techniques.

Blooming Cycles of Different Chrysanthemum Varieties

Characteristics of the Classic Blooming Period of Autumn Chrysanthemums

The autumn chrysanthemums, which dominate the market, usually welcome the peak blooming period from September to November. Their blooming mechanism is closely related to the duration of daylight. These varieties need to go through a complete vegetative growth period and then trigger flower bud differentiation under the natural signals of increased day-night temperature differences and shortened daylight hours.

Blooming Patterns of Special Varieties

Summer chrysanthemums, as representatives of early flowering types, show a dual-season blooming characteristic from May to June and September, while winter chrysanthemums bloom from December to January of the following year. Their cold-resistant genes enable them to complete the blooming process in low-temperature environments. The annually blooming chrysanthemums cultivated in recent years have achieved blooming in all four seasons through artificial regulation.

Key Maintenance Elements Affecting Blooming

Accurate Control of Photoperiod

As a typical short-day plant, chrysanthemums require more than 12 hours of darkness every day during the flower bud differentiation period. If disturbed by light sources such as street lights at night, it is recommended to use遮光布 to create a completely dark environment. Appropriate shading is needed during strong sunlight in summer to prevent leaf burn.

Coordinated Management of Water and Fertilizer

Keep the soil moist during the growing period but avoid waterlogging. The finger soil probe method can be used to determine the watering timing. Apply monopotassium phosphate (0.2% concentration) in the early stage of bud formation, and配合 leaf spraying to promote flower bud development. Avoid excessive nitrogen fertilizer to prevent Luxuriant growth.

Regulation of Plant Morphology

Timely remove dense side buds and retain 5-7 strong branches. Perform thinning of flower buds during the budding period, leaving the top dominant buds on each branch. After flowering, promptly cut off the remaining flowers and retain the healthy branches 15cm from the base for next year's germination.

By mastering the photoperiodic needs of chrysanthemums, establishing a scientific maintenance system, and combining timely plant adjustments, even beginners can make chrysanthemums bloom as expected. It is recommended to keep a growth log every year, recording data such as temperature, light, and fertilization, and gradually establish a personalized maintenance plan.