Botanicare Rhizo Blast 1.15-0.5-1.15 | 1000mL

Root Development Stimulant for Any Growing Medium, 1000mL

New transplants and stressed plants often show slow, thin root development long before any deficiency shows up in the leaves, and a standard base nutrient program is not built to target root-zone growth specifically. Botanicare Rhizo Blast 1.15-0.5-1.15 is a concentrated root stimulant formulated to promote vigorous root growth and improve nutrient uptake, giving the root system direct support rather than relying on the base feed alone.

The 1000mL bottle is sized for indoor growers who want a concentrated root stimulant to layer into an existing feeding routine without committing to a large-format container.

Key Features & Benefits

• Root Growth Stimulant — formulated specifically to encourage vigorous, well-developed root systems.
• Improved Nutrient Uptake — supports more efficient nutrient absorption once roots are established.
• Multi-Medium Compatibility — works across hydroponic systems, soil gardens, and coco coir setups.
• Concentrated 1.15-0.5-1.15 Formula — mixes into an existing feeding routine at the medium-specific application rate.

Who Should Use Rhizo Blast

Growers establishing new transplants or clones, or those who want extra root-zone support during periods of rapid growth, are the primary fit for Rhizo Blast. It works across hydroponic, soil, and coco coir setups, so the growing medium itself does not limit who can use it.

About Botanicare

Botanicare was founded by Treg Bradley in Chandler, Arizona, and joined the Hawthorne Gardening Company portfolio when Hawthorne Hydroponics, a Scotts Miracle-Gro subsidiary, acquired the brand in 2016.

Frequently Asked Questions

What does Rhizo Blast do?

Rhizo Blast is a concentrated root stimulant formulated to promote vigorous root development and improve how efficiently a plant's root system takes up nutrients. It is designed to be added to an existing feeding program rather than used as a standalone fertilizer.

When should I start using Rhizo Blast?

Root stimulants like Rhizo Blast are most commonly introduced early, when a new transplant or rooted cutting is establishing itself, though many growers continue using it through periods of active root growth. Follow the medium-specific application rate on the label rather than a single fixed schedule.

Is Rhizo Blast compatible with my growing medium?

Yes, Rhizo Blast is formulated to work across hydroponic systems, soil gardens, and coco coir setups. Application rates vary by medium, so check the label for the rate that matches your specific setup.

Do I still need my regular base nutrients?

Yes, Rhizo Blast is a supplemental root stimulant, not a complete fertilizer, so it is meant to be layered onto an existing base nutrient program. Continue your regular feeding schedule and add Rhizo Blast at the recommended rate.

How is Rhizo Blast different from a general-purpose root supplement?

Rhizo Blast is formulated specifically around its 1.15-0.5-1.15 ratio to target root growth and nutrient uptake rather than provide broad-spectrum feeding. That narrower focus is why it is layered onto a base program instead of replacing one.