Botanicare Rhizo Blast 500 Ml (Case of 8)

Root Booster with Kelp Extract for Cuttings and Transplants, 500 mL

A cutting or freshly transplanted seedling has to establish roots before it can support real vegetative growth, and a standard base nutrient program isn't formulated around that specific window. Botanicare Rhizo Blast is a 1.15-0.5-1.15 root-development formula built around ammonium nitrate, potassium nitrate, monopotassium phosphate, and kelp extract (Ascophyllum nodosum), designed to support root growth during propagation and early establishment.

The 500 mL bottle suits home growers and small propagation setups running a limited number of cuttings at a time, and it ships as a case of 8 for shops and growers who reorder this size regularly.

Key Features & Benefits

• 1.15-0.5-1.15 guaranteed analysis — supplies nitrogen, phosphorus, and potassium at levels formulated for early root development.
• Kelp extract (Ascophyllum nodosum) — a marine-derived ingredient commonly used to support root and stress-response development in propagation formulas.
• Formulated for cuttings and transplants — targets the root-establishment window rather than replacing a full-cycle base nutrient program.
• Compatible with hydroponic, soil, and coco coir — mixes into water for use across all three common propagation and growing media.

Who Should Use Rhizo Blast

This fits growers propagating cuttings or transplanting seedlings who want a root-development formula during that establishment window, whether in a hydroponic cloning system, soil, or coco coir. It's typically used during propagation and early growth rather than as a season-long base nutrient.

About Botanicare Rhizo Blast

Botanicare Rhizo Blast is a 1.15-0.5-1.15 root-development formula derived from ammonium nitrate, potassium nitrate, monopotassium phosphate, and kelp extract (Ascophyllum nodosum), designed to support root growth in cuttings and transplants.

Frequently Asked Questions

What is Rhizo Blast actually made from?

Its guaranteed analysis is 1.15-0.5-1.15, derived from ammonium nitrate, potassium nitrate, monopotassium phosphate, and kelp extract (Ascophyllum nodosum). The kelp extract is a marine-derived ingredient commonly included in propagation formulas to support root and stress-response development.

When during propagation should I use Rhizo Blast?

It's formulated for the root-establishment window, meaning fresh cuttings and newly transplanted seedlings before they've built out a full root system. Follow label directions for dosage and frequency during that period.

Can I use Rhizo Blast in soil, coco coir, and hydroponic systems?

Yes, it's formulated to mix into water for use across all three media types. Add it to your propagation water or reservoir rather than applying it undiluted.

Do I still need a base nutrient program once cuttings root?

Yes — Rhizo Blast targets the root-establishment window specifically. Once cuttings or transplants have rooted and move into general vegetative growth, transition them onto a full base nutrient program.

What does the kelp extract in Rhizo Blast actually do?

Kelp extracts like Ascophyllum nodosum are widely used in propagation and root-development products for their naturally occurring plant compounds. Botanicare includes it alongside the product's N-P-K analysis as part of the root-development formula rather than as a standalone ingredient.