The Cultivation Method and Precautions of Plumeria Rubra
As a courtyard plant with both ornamental value and aromatic quality, Plumeria rubra is favored by horticulture enthusiasts for its unique blue-purple gradient flowers. Mastering scientific maintenance methods can keep the plant vigorous, and this article will comprehensively analyze its cultivation essentials from environmental regulation to daily management.
Control of Plumeria Rubra Growing Environment
Soil Matrix Mixing Scheme
The ideal cultivation matrix is a mixture of decayed leaf soil, cake fertilizer, and sandy loam soil in a ratio of 4:1:5, with the humus content needing to reach over 30%. It is recommended to replace the top 5-8 centimeters of soil every spring, and for potted plants, the soil should be completely changed every 2 years.
Management of Light Intensity
Receiving 4-6 hours of scattered light daily is most suitable, and during 11:00-15:00 in summer, a shade net should be used to filter 40% of UV rays. In winter, it can be exposed to full sunlight, and in northern regions, supplementary lights should be used to maintain an 8-hour daily lighting cycle.
Daily Maintenance Skills for Plumeria Rubra
Smart Irrigation System
Adopt the "moist when dry" method of watering, irrigation is carried out when the soil moisture meter shows a value below 40%. Water thoroughly every 5 days in spring and autumn, shorten to 3 days during the high temperature period of summer, and control water to every 15 days in winter. When the air humidity is below 50%, it is necessary to spray moisten in the morning and evening.
Precise Fertilization Strategy
Apply 200g of decomposed sheep manure fertilizer per plant monthly during the growing period, and after the flowering period, switch to potassium dihydrogen phosphate solution (0.2% concentration). Solid fertilizers need to be buried in a ring shape along the edge of the pot, and after applying liquid fertilizers, the soil should be loosened to enhance aeration.
Key Points of Management in Special Seasons
During the plum rain season, it is necessary to build a rainproof shed and dig ditches for drainage, and after continuous rainy days, spray carbendazim to prevent root rot disease. When the temperature is below 5°C in winter, use double-layer film for insulation and reduce the watering amount by 50%. After flowering, trim the residual flowers in time and retain 3 pairs of leaves to promote new branches.
Through systematic environmental control and precise maintenance, Plumeria rubra can achieve flowering in multiple seasons throughout the year. Regularly observe the leaf condition to adjust the management plan, and use a soil EC value tester to monitor the nutrient status, which can keep the plant in the best ornamental state. It is recommended to establish a maintenance log to record temperature and humidity changes and the plant's response, gradually forming an individualized cultivation system.