Rose Old Root Planting Method
Many gardening enthusiasts are faced with the problem of low survival rate when planting old rose roots. Although old roots carry the advantage of nutrients accumulated over the years, their special physiological structure requires targeted treatment. This article will systematically analyze the complete process from pot selection and soil mixing to later-stage maintenance, helping you break through the bottleneck of old root planting.
Key Technologies for Planting Old Rose Roots
Scientific Soil Mixing and Pot Selection
It is recommended to use a clay pot with a depth of ≥35cm, with a 3cm layer of碎石 (gravel) pre-buried at the bottom. The soil should be mixed in the ratio of decayed leaf soil: perlite: vermiculite = 5:3:2, with 100g/m³ of bone meal added to increase phosphorus content. Never use uncomposted organic fertilizer to avoid the risk of root burn.
Root Activation Treatment Plan
The soaking solution is recommended to use ABT1 root growth powder (concentration 200ppm) + carbendazim (800 times liquid) dual-effect formula, with a soaking time of 45-60 minutes. The lignified main roots need to be obliquely cut at a 45° angle to increase the area for callus formation.
Key Points for Precise Planting Operations
Use the layered soil filling method: the bottom layer with coarse particle matrix, the middle layer mixed with nutrient soil, and the top layer covered with fine particles. The planting depth should be 2cm lower than the soil surface at the junction of the root and stem, and water thoroughly after firming.
Core Strategies for Maintaining Old Rose Roots
Three Elements of Environmental Control
Maintain a day/night temperature difference environment of 18-22℃/12-15℃, and keep the air humidity at 60-70%. Use a 75% shade net to filter strong light, ensuring 4 hours of scattered light every day. Keep the matrix moisture at 40-50% before new buds germinate.
Nutrient Supply Timeline
Week 1: Water maintenance; from Week 2, spray with seaweed extract (1500 times liquid) every week; in Week 4, apply high-phosphorus water-soluble fertilizer (EC value 1.2mS/cm); and transfer to conventional maintenance from Week 8.
Through the above systematic operations, the survival rate of old rose roots can be increased to over 85%. The key is to grasp the first 30 days of the seedling缓苗 (acclimatization) golden period, regularly check the formation of callus tissue. It is recommended to use a temperature and humidity monitor to control environmental parameters in real-time, allowing the old stakes to regain their vitality.