The Cultivation Method of Bletilla
As a star of the Orchidaceae family for ornamental purposes, Bletilla is favored by gardening enthusiasts for its elegant flower posture and unique leaf patterns. To cultivate lush Bletilla at home, it is necessary to master a scientific care system. This article will systematically analyze the complete knowledge framework for home cultivation of Bletilla, from environmental control to propagation techniques and pest and disease prevention.
Key Points of Bletilla Environmental Management
Temperature and Light Balance Technique
The native environment of Bletilla determines its preference for warmth and aversion to cold, suggesting a golden temperature range of 15-30°C. When temperatures exceed 32°C in summer, cooling measures should be initiated: early morning and late evening misting combined with shade nets, and double-layer thermal insulation films used during low winter temperatures.散射 light environments require ensuring 4-6 hours of light per day, with a southeast-facing windowsill combined with a curtain with 50% light transmission to form an ideal light environment.
Precision Water and Fertilizer Supply Method
Adopt the 'Soaking Pot + Mist' dual-mode watering: soaking the pot for 15 minutes every Tuesday and Friday morning in spring and autumn, and adding a misting session on Wednesday evening in summer. Use a special orchid nutrient solution (N-P-K = 20-20-20), foliar spray every 10 days during the growing season, combined with a monthly application of decomposed sheep manure extract solution to the roots, which can significantly promote pseudobulb expansion.
Advanced Bletilla Propagation Techniques
The Cultivation Method of Bletilla
Division Operation Full Process
The best time for division is before the sprouting of new buds in March to April, selecting a vigorous mother plant with 5 or more pseudobulbs. Before dividing, reduce watering for 3 days to make the substrate half-dry, and quickly divide using a sharp tool that has been disinfected with alcohol. After cutting, apply charcoal powder, then plant in a new substrate of pine bark and volcanic rock (3:1) and place in a shaded area at 25°C for care.
Key Time Window for Repotting
Repotting every early spring can increase growth efficiency by 30%. Use a breathable pot with a pore size ratio of 40%, and a substrate mix of 40% fermented pine bark + 30% stone plant + 20% coconut shell + 10% activated carbon. After repotting, use a 200-fold diluted EM liquid solution to water the roots, effectively promoting the development of new roots.
Bletilla Disease Prevention and Control System
Fungal Disease Response Plan
Sclerotium blight is common during the plum rain season, initially using quicklime at a 1:50 ratio to sprinkle on the pot surface, and for severe cases, replacing the substrate and watering with a 50% carbendazim 800x solution. The focus of (T-J) disease control is on air circulation, alternating between mancozeb and tebuconazole when the disease occurs, with weekly spraying for three weeks.