CANNA Rhizotonic is a powerful root stimulator containing a blend of natural algae extracts and vitamins. While primarily used as a root drench, foliar application can deliver rapid results — especially during transplant stress, early vegetative growth, and recovery from environmental shock.
What is CANNA Rhizotonic?
Rhizotonic is an algae-extract based root stimulator. CANNA describes it as supporting root development, resistance to stress and recovery after transplanting.
Benefits of Foliar Spraying
When applied as a foliar spray, Rhizotonic is absorbed directly through the leaf surface (stomata), bypassing the root system entirely. This is particularly useful when:
- Roots are damaged or underdeveloped (cuttings, transplants)
- The plant is under stress (heat, overwatering, nutrient lockout)
- You want to accelerate early vegetative growth
- Plants need a quick boost of vitality
How to Foliar Spray with Rhizotonic
Dilution rate: use the foliar rate given on the current CANNA label or product information.
Procedure:
- Mix Rhizotonic with clean, pH-adjusted water (pH 5.8–6.2)
- Use a fine mist sprayer for even coverage
- Spray the undersides of leaves (where stomata are most concentrated)
- Apply during lights-off or early morning/late evening to prevent light burn
- Do not spray during flowering — focus on vegetative phase and cloning
Frequency: 1–3 times per week during the first 1–2 weeks after transplant or when stress symptoms appear.
Key Tips
- Always spray when lights are off to avoid leaf burn
- Combine foliar application with root drenching for maximum effect
- Rhizotonic is compatible with all CANNA nutrient lines (Terra, Coco, Aqua, Hydro)
- Store in a cool, dark place; use diluted solution within 24 hours
When NOT to Foliar Spray
- During the flowering/bloom phase (risk of mold on buds)
- Under intense HPS/LED lighting
- If the grow room humidity is already above 70%
Note: CANNA Rhizotonic is available at authorized retailers including AZ Growshop Thailand.