Detailed Guide to Phalaenopsis Propagation Methods and Fertilization Techniques
Phalaenopsis is surely no stranger to many people. Its ornamental value is very high, with the flowers being the main ornamental feature. Its flower colors are varied, and when it blooms it looks like beautiful butterflies one after another, which is how it got its name. Nowadays, quite a few people grow Phalaenopsis, but in the process of growing it, fertilization and propagation are very important, so the techniques must be mastered.
Phalaenopsis Propagation Methods
1. Flower stalk bud-forcing propagation method: First cut off the part of the flower stalk that has finished blooming, then carefully use a blade to remove the bracts between the first and third nodes at the upper end of the flower stalk, exposing the buds in the nodes; use a cotton swab to evenly apply bud-forcing agent, indolebutyric acid or other hormones to the exposed node buds; after applying, place the plant in a semi-shaded spot, maintaining a cultivation temperature of 25-28 degrees C. Generally after 2-3 weeks the buds can grow leaves, and after 3 months they can grow into small Phalaenopsis seedlings with 3-4 leaves and aerial roots; finally cut off the small seedlings and pot them up to obtain a new plant.
2. Crown-cutting bud-forcing propagation method: First pull out the highest heart leaf at the top of the stem, taking care to destroy the growing point at the stem tip so that it can no longer continue growing upward; after the wound dries, apply a fungicide to sterilize and disinfect it, and after a period of time 2-3 new buds will sprout from the stem nodes near the base; when the new buds have grown larger and roots have emerged from the base, they can be cut off and planted separately to obtain a new plant.
How to Fertilize Phalaenopsis
1. During the peak growth period of Phalaenopsis, apply water-soluble fertilizer at a lower concentration, insisting on light fertilizer applied frequently, and stop fertilizing when the temperature is above 32 degrees C or below 15 degrees C.
2. Before July, apply root fertilizer and foliar topdressing alternately, applying a general-purpose compound fertilizer with nitrogen:phosphorus:potassium (1:1:1) once, diluted to a 2000-fold solution for appropriate root watering. In August, apply liquid fertilizer once every 15 days. After September, apply a foliar fertilizer of monopotassium phosphate solution at a concentration of 0.1 percent.
3. After October, control water and fertilizer well to promote flower bud formation. During this period, foliar fertilizer should mainly be phosphorus and potassium fertilizer for roots, with appropriate additional application of trace element fertilizer (boron, iron, zinc, etc.).
Phalaenopsis Leaves Turning Yellow and Soft
1. Temperature: Phalaenopsis has relatively high temperature requirements. Its optimal growth temperature is 18-28 degrees C. It is not tolerant of high temperatures or severe cold, and both above 32 degrees C and below 15 degrees C will affect the growth of Phalaenopsis. Therefore, extra attention should be paid in summer and winter to ensure it grows in a suitable environment.
2. Light: Phalaenopsis likes a semi-shaded environment and prefers diffused light. Strong light or long-term placement in a dark environment will affect the photosynthesis of Phalaenopsis, causing the leaves to turn yellow and soft.
3. Pests and diseases: Pests such as red spider mites and scale insects can also cause Phalaenopsis leaves to turn yellow and soft. Normally, ensure air circulation, promptly clean up dead branches and rotten leaves, observe the plant's surrounding environment more often, and keep the growing area clean. When pests first appear in small numbers, you can gently wipe the insects off the leaf surface with a soft brush, or spray pesticide to eliminate them.
What to Do About Phalaenopsis Root Rot
1. First dig the potting soil out of the pot and break it up, wash the plant's roots with clean water, then cut off all the rotten roots, while retaining as much of the healthy part as possible, since damaged roots also have a chance of being revived.
2. Place the cut surfaces and the retained damaged roots in a 2 percent concentration potassium permanganate solution to soak for about 10 minutes, then let them dry, and carefully apply a layer of plant ash to the cut surfaces, and the plant can then be repotted.
3. The potting soil must be disinfected. A simple method is to pour boiling water through the potting soil, and reuse it after it cools. When repotting, pat the root and stem area firm, water thoroughly, place in a shaded spot, cover with a layer of plastic film, and cultivate at a temperature of around 20 degrees C. After about 20 days, new roots can grow.
The common Phalaenopsis propagation methods are generally flower stalk bud-forcing and crown-cutting bud-forcing, and you can choose the appropriate time to carry them out. After propagation, management needs to be strengthened, and with fertilization you must pay attention to timing, as the fertilization method differs at different times. If yellowing leaves or root rot occur, find the problem at its root and then solve it thoroughly.