Why Do We Change Flower Pots Every Year
The growth state of potted plants is closely related to root management, and regularly changing flower pots is an important means to maintain plant vitality. When the roots continue to develop in a limited space, the potting soil environment undergoes irreversible changes, directly affecting the plant's ability to absorb nutrients and water.
Root Growth Space Requirements
Container Selection in Seedling Stage
Using small containers with good breathability for newly planted seedlings can accurately control the amount of watering. Experimental data shows that the survival rate of small pot cultivation is 23% higher than that of large pots, effectively avoiding the risk of waterlogging and root rot.
Root Expansion in Adult Plants
In the vigorous growth period, the annual root increment of plants can reach three times the original volume, which is especially evident in fast-growing varieties such as green vines and hanging orchids. More than 85% of potted plants show growth stagnation after the roots fill the container.
Scientific Potting Operation System
Best Timing for Repotting
Repotting in the spring at a temperature of 15-25°C can shorten the plant recovery period by 40%. Avoid operating during the high-temperature season, as humidity over 70% can easily cause fungal infections.
Personalized Maintenance Plan
Succulent plants can be repotted every 2-3 years, while orchid species require special substrate treatment. Observing whether the roots are exposed from the bottom drainage hole of the pot is a direct criterion for determining the timing of repotting.
Soil Improvement Synergistic Effect
When repotting, replace 50%-70% of the old soil with humus soil and perlite. Tests have shown that the speed of new leaf germination in repotted plants with updated substrates increases by 35%, and the blooming period extends by more than 20 days.
Regularly changing pots not only solves the space limitation but also reshapes the soil microecosystem. Combined with proper pruning and fertilizing, it can keep potted plants in a youthful growth state, especially promoting the development of leaf patterns in ornamental foliage plants and the differentiation of flower buds in flowering plants.