
Botanicare Rhizo Blast for Fast Early Root Growth
Rhizo Blast is a root-focused additive, dosed so lightly that a liter lasts a long time. The label reads 1.15-0.5-1.15, with the nitrogen split between 0.30% ammoniacal and 0.85% nitrate. Botanicare derives it from ammonium nitrate, potassium nitrate, monopotassium phosphate and Ascophyllum nodosum kelp. The blend also includes Chlorella, a single-celled green micro-algae, and 0.005% yucca extract as a wetting agent. That wetting agent helps the solution spread evenly through coco and peat instead of channeling down one side of the pot. The rate is 2 mL per gallon with every watering. The label chart runs it from seedlings and cuttings through transition and veg. Botanicare's product page extends it through week three of flower, so it carries on through the stretch. Shake the bottle before each use and never pour it straight into another concentrate. Add it to the water, let the solution mix fully, then take the pH reading. A 1 ml syringe makes the small dose easy to hit.
Where a Hydroponic Root Stimulator Makes the Biggest Difference
Roots are the bottleneck in the first few weeks, and this is where Rhizo Blast earns its bottle space. Freshly transplanted clones, seedlings moving up a pot size, and DWC buckets that need fast root mass all benefit. Kelp and algae supply trace elements and natural growth compounds, while the small nitrate dose keeps young plants from stalling. It works in deep water culture, drip, ebb and flow, coco and soil alike. Once flowers are well established, stop adding it and let the bloom program take over. It is a supplement, not a base nutrient, and it will not carry plants on its own. Anyone already running a strong kelp or microbial root product may see only a modest added effect. The liter bottle covers several runs for a small room, which makes it easy to keep on the shelf. Store it somewhere cool and dark, and keep the cap tight between uses. It pairs naturally with the rest of Botanicare's lineup but mixes with other bases too.
Key Features
- 1.15-0.5-1.15 Root Formula: A light, nitrate-led feed that keeps young plants moving while roots establish.
- Kelp and Chlorella: Seaweed and green micro-algae supply trace elements and natural growth compounds.
- Yucca Wetting Agent: Helps solution spread evenly through coco, peat and soil instead of channeling.
- Low 2 mL per Gallon Rate: A liter goes a long way at every watering.
- Seedling to Early Flower: Runs from cuttings and seedlings through veg, and into the first weeks of bloom.
- Any Growing Medium: Suited to DWC, drip, ebb and flow, coco and soil gardens.
Technical Specifications
| Specification | Value |
|---|---|
| Total Nitrogen (N) | 1.15% (0.30% ammoniacal, 0.85% nitrate) |
| Available Phosphate (P2O5) | 0.5% |
| Soluble Potash (K2O) | 1.15% |
| Derived From | Ammonium nitrate, potassium nitrate, monopotassium phosphate, kelp (Ascophyllum nodosum) |
| Other Ingredients | Chlorella micro-algae, 0.005% yucca extract (wetting agent) |
| Rate | 2 mL per gallon, every watering |
| Stages | Seedling, transition and vegetative; through week 3 of flower per Botanicare |
| Net Contents | 33.8 fl oz (1 L) |
| Approximate Yield | About 500 gallons at 2 mL per gallon |