MaxiSeries Dry Hydroponic Nutrients

MaxiSeries is a dry, water-soluble base nutrient line with MaxiGro for vegetative growth and MaxiBloom for flowering and fruiting. Each is a complete base formula for its specified stage, rather than one half of a pair that must always be used together.

Compare the two products below, then follow the MaxiSeries chart for your growing medium and plant stage. Indoor and outdoor programs differ; use any companion products only as directed by the selected schedule.

Browse MaxiSeries products

Compare MaxiGro and MaxiBloom

MaxiGro

Format
Dry, water-soluble base nutrient.
Stage
Vegetative growth. Follow the chart's plant-stage guidance for seedlings, cuttings, and established plants.
Program role
The Grow-stage base formula. Check your chosen schedule before adding supplements or changing to a flowering feed.

MaxiBloom

Format
Dry, water-soluble base nutrient.
Stage
Flowering and fruiting.
Program role
The Bloom-stage base formula. Follow the feeding chart for the transition from vegetative growth and any companion products.

Choose an indoor or outdoor MaxiSeries chart

Find MaxiSeries indoor and outdoor feeding charts. The outdoor one-part program and expanded indoor program have different product requirements; the indoor program includes CALiMAGic for additional calcium and magnesium support.

Use the chart matching your growing medium and plant stage. Dissolve the dry product in water according to its label and mixing instructions, then check the prepared nutrient solution as directed by the feeding program.

Looking for a different program structure? Compare GH base nutrient programs.

Need help selecting a schedule? Learn how to choose a GH feed chart. To source products locally, find an authorized retailer.

Browse MaxiSeries products

Sort by
2 products

Feed programs

Choose a feed program

Use these related feed programs to match products in this collection with the right schedule, EC profile, and downloadable chart.

Feed Program

Maxi Series Professional Outdoor 1-Part Nutrient System

A simple dry-nutrient program using MaxiGro for vegetative growth and MaxiBloom for flowering in outdoor and soil-based production. Light, medium, and aggressive schedules provide a straightforward way to scale feeding intensity.
Hand-mix Standard 500 3 schedules
Soil

Feed Program

Maxi Series Professional Indoor 2-Part Nutrient System

An expanded Maxi Series indoor program using MaxiGro and MaxiBloom with CALiMAGic for additional calcium and magnesium support. Light, medium, and aggressive schedules keep the program simple while allowing growers to adjust feeding intensity.
Hand-mix Standard 500 3 schedules
Hydroponics Coco Coir Soilless Media

Collection guide

Grower guidance

Explore practical guidance, product-line education, and helpful next steps for this collection.

Getting Started

Maxi Series Basic Program Flow (Entry-Level)

  • Seedlings and cuttings: Start with MaxiGro at light label rates.
  • Vegetative growth: Continue MaxiGro at veg rates as plants size up.
  • Transition to bloom: When plants begin flowering or fruiting, transition from MaxiGro to MaxiBloom.
  • Full bloom Run MaxiBloom through the flowering/fruiting stage according to label or feed chart guidance.

Search