General Hydroponics Flora Series 3‑Part Hydroponic Nutrient System — 1 qt bottles, adjustable feeding for all growth stages

General Hydroponics Flora Series is a three-part, adjustable hydroponic nutrient system—FloraMicro, FloraGro, and FloraBloom—formulated to supply balanced primary, secondary and trace elements throughout a plant’s life cycle.

The Flora Series is the classic three-part nutrient program gardeners and hydroponic growers have used for decades to control feeding at every growth stage. Instead of a single pre-mixed formula, FloraMicro, FloraGro and FloraBloom let you tailor nutrient ratios to seedling, vegetative and flowering phases. Each bottle focuses on complementary macronutrients and micronutrients so you can mix a personalized recipe in your reservoir and fine-tune plant nutrition as crops develop.

How do I combine FloraMicro, FloraGro, and FloraBloom for general feeding?

Start with a full reservoir of water, add FloraMicro first and stir to dilute the concentrated minerals, then add FloraGro or FloraBloom depending on growth stage. If using both FloraGro and FloraBloom in the same dose, add one, mix thoroughly, then add the other to avoid concentrated interactions.

• Add FloraMicro to the water first to distribute trace elements evenly.
• Follow with FloraGro during vegetative growth for leaf and stem development.
• Introduce FloraBloom or increase Bloom ratio as flowering and fruit set begin.
• Always dissolve and mix each component before adding the next.

What nutrients does each Flora bottle provide and why does that matter?

Each component emphasizes different elements: FloraMicro supplies nitrogen, calcium and micronutrients that form the base of plant nutrition; FloraGro boosts nitrogen and potassium for structural and foliar growth; FloraBloom increases phosphorus, potassium, magnesium and sulfur to support flower and fruit formation. Together they deliver a full spectrum of essential elements in controllable ratios.

• FloraMicro: primary source of nitrogen, calcium and trace minerals for balanced baseline nutrition.
• FloraGro: supports vegetative mass with extra nitrogen and potassium for stems and leaves.
• FloraBloom: formulated for reproductive growth with phosphorus, potassium and secondary elements.
• Mixing all three provides primary, secondary and micronutrients in tailored proportions.

How do I use the Flora Series safely and effectively in a hydroponic reservoir?

Always measure concentrates by volume or weight according to your recipe and add to water rather than adding water to concentrate. Keep reservoir temperature, pH and EC/PPM monitoring regular; adjusting pH and electrical conductivity after mixing ensures nutrients remain available and prevents lockout.

• Measure dosing precisely and add to reservoir water one product at a time.
• Stir thoroughly after each addition and check pH and EC/PPM before running circulation.
• Store bottles upright in a cool, shaded place and keep caps closed to preserve concentration.
• Follow incremental recipes when transitioning plants between growth stages.

Can I customize the Flora Series for different crops and growth stages?

Yes. The three-part design exists specifically to let growers create tailored feeding schedules—from seedlings to large flowering crops—by increasing or decreasing each component. Many growers follow published ratio charts as starting points, then adjust feed strength and proportions to match plant response and crop demands.

• Start with mild concentrations for seedlings, increase FloraGro in vegetative phase.
• Shift ratios toward FloraBloom as flowering begins to promote bloom and fruit development.
• Fine-tune with EC and visual plant cues rather than exceeding recommended strengths.
• Use published feeding charts as baseline then adapt to your cultivar and environment.

Who is this for: The General Hydroponics Flora Series is suited to home gardeners, hobbyist hydroponic growers, greenhouse operators and anyone who prefers precision feeding over one-part products. If you want control over nutrient ratios, plan to monitor reservoir parameters, and like the option to customize feeds for different growth stages or crop types, this three-part system gives the flexibility and coverage to meet those needs.