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Indoor plants, various fertilizers and gardening supplies on a wooden table with a window background

Houseplant Fertilizer, Nutrients & Additives

Find the right houseplant fertilizer or indoor plant food by plant type, substrate and water quality. Start with one suitable base feed for regular growth, then add CalMag, root support, enzymes, silicon or pH correction only when your routine needs that extra layer.

How to choose

Step 1

Pick your route

Mixed indoor plants, leafy aroids, coco, LECA, mineral substrates, organic soil, cuttings, orchids, water correction or additives.

Step 2

Choose one base feed

This supplies the main nutrients your plant uses for regular growth.

Step 3

Add support only when needed

Root products, CalMag, enzymes, silicon, pH products and vitality additives solve specific jobs. They are not automatic extras.

Start here

Find your fertilizer route

Start with your plant type, substrate or water routine. The right product depends less on the brand name and more on how the plant is actually growing.

Mixed plants · Simple dosing · Beginner
Collection of various potted plants on a wooden surface

Easy feed for mixed indoor plants

For mixed plant shelves, small pots and simple label-dose routines.

View easy plant food
Aroids · Foliage plants · Soil mix
Indoor plants in terracotta pots on a wooden table with a cozy living room background.

Aroids & leafy plants in soil

For Monstera, Philodendron, Anthurium, Epipremnum, Syngonium, Ficus and other leafy plants in soil, aroid mix or chunky potting mix.

View foliage feeds
Coco · Water quality · pH-aware
Person watering a potted plant on a wooden table with gardening tools and a bottle of liquid fertilizer nearby.

Coco-heavy mixes

For plants grown in coco or coco-dominant substrates, where water quality and pH matter more than in standard potting mix.

View coco nutrients
LECA · Pon · Mineral substrate
Potted plants and semi-hydroponic supplies like mineral substrates and cache pots on a wooden surface

LECA, pon & semi-hydro

For inert or mineral media where nutrients come mainly from the water.

View semi-hydro nutrients
Organic feed · Soil · Living substrate
Person fertilizing a plant with a bottle and soil on a wooden table

Organic soil feeding

For soil-based routines using organic base feeds.

View organic feeds
Orchids · Palms · Flowering plants
Person fertilizing a potted palm plant in a home setting

Orchids, palms & flowering pots

For orchids, palms, flowering plants, patio pots and balcony containers.

View speciality feeds
Roots · Cuttings · Starter phase
Person applying a liquid root stimulator in a terracotta pot on a wooden table with gardening tools and pots in the background.

Cuttings, seedlings & repotting

For root support, starter feeding, fresh cuttings and post-repot restart.

View rooting support
CalMag · pH up/down · Measurement
Person in blue gloves using a pH test kit on a wooden table with potted plants.

CalMag, soft water & pH

For RO, demineralised or very soft water, plus measured nutrient-water correction.

View water correction
Additives · Enzymes · Silicon
Collection of glass bottles with liquids fertilizers and droppers on a wooden surface with plants and tools.

Additives, enzymes & plant vitality

For enzymes, microbes, silicon, vitamins and optional support after the base feed is covered.

View additives

Base fertilizer first, additives second

Most feeding routines start with one suitable base fertilizer. That is the product that supplies the main nutrients for regular growth. Support products belong around that base feed only when the plant stage, substrate, water quality or growing method gives them a clear role.

Main feed

Base fertilizer

This is the main feed. It supplies the core nutrients for regular growth. Choose it by substrate, plant type and growing method.

Specific job

Support product

This helps with roots, substrate maintenance, CalMag correction, silicon, enzymes or plant vitality. It does not replace the base feed.

Measured routine

Technical product

This belongs to a measured routine or adjusts nutrient water. pH products, A+B nutrients and many hydro feeds need careful label use and, often, pH/EC checks.

Shop by fertilizer route

Choose the route that matches your plant and growing setup. Each section separates base feeds from support products, technical nutrients and water-correction products.

Easy starting points

Easy houseplant food

Best for: Mixed indoor plants · Small pots · Simple dosing · Beginner routines

Choose this route when: You want one straightforward houseplant fertilizer for mixed indoor plant care without building a technical feeding routine. New to feeding? Read the beginner guide to fertilizing houseplants.

Choose another route for: Pure coco routines, advanced hydro systems, pH-controlled reservoirs or plants that need a very specific feed.

HESI HousePlant Elixir

Easy everyday plant food

HESI HousePlant Elixir

Mixed indoor plantsSoilSemi-hydro
BeginnerBase fertilizerAdjust to light

Use as one main feed where the product supports the setup. Follow label dosage.

View product
Pokon Houseplants Food

Simple houseplant feed

Pokon Houseplants Food

SoilMixed indoor plantsLabel dose
BeginnerBase fertilizerNot for hydroculture

Use for soil-grown houseplants. Confirm exact SKU version before locking fixed dosage.

View product

Soil & foliage feeds

Aroids & leafy plant feeds

Best for: Monstera · Philodendron · Anthurium · Epipremnum · Syngonium · Ficus · Leafy plants in soil-style mixes

Choose this route when: You want a stronger base feed for actively growing leafy plants in soil, aroid mix or chunky potting mix.

Choose another route for: Cuttings, seedlings, weak roots, pure coco routines, hydro systems or the simplest possible product.

HESI TNT Complex

Stronger foliage base feed

HESI TNT Complex

AroidsFoliage plantsSoil/Coco
Base fertilizerIntermediateDose carefully

5 ml/L; use as one stronger base feed and reduce for young plants or frequent long-term use.

View product
CANNA Terra Vega

Soil base nutrient

CANNA Terra Vega

SoilPotting mixActive growth
Base fertilizerIntermediateDose carefully

Max. 5 ml/L; soil/potting-mix feed for active leafy growth.

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Plagron Terra Grow

Mineral soil base feed

Plagron Terra Grow

SoilFoliage plantsActive growth
Base fertilizerIntermediateDose carefully

Max. 5 ml/L; mineral base fertilizer for actively growing soil plants.

View product

Coco nutrients

Coco plant nutrients

Best for: Coco · Coco-heavy mixes · pH-aware routines · Coco-specific feeding

Choose this route when: Your plant grows in coco or a coco-dominant substrate and needs a coco-specific nutrient routine.

Choose another route for: Standard potting soil, casual mixed plant shelves, bark-heavy orchid mixes or one-bottle all-round feeding.

HESI Coco

Coco base fertilizer

HESI Coco

CocoCoco-heavy mixespH-aware
Coco nutrientpH/EC check neededpH/EC check needed

5 ml/L; check pH after mixing and adapt for indoor plants.

View product
CANNA Coco A+B

Two-part coco nutrient

CANNA Coco A+B

CocoA+BpH/EC
Coco nutrientTechnicalA+B: mix separately

Max. 4 ml/L; add A first, then B. Use in a measured coco routine.

View product
Plagron Cocos A+B

Two-part coco base feed

Plagron Cocos A+B

CocoA+BpH-aware
Coco nutrientpH/EC check neededA+B: mix separately

Max. 4 ml/L A plus same amount B; use as coco base nutrition.

View product

Mineral substrates

LECA, pon & semi-hydro nutrients

Best for: LECA · Pon · Mineral substrate · Passive semi-hydro · Hydro-style routines

Choose this route when: Your plant grows in inert or mineral media where the nutrient solution does most of the feeding. For pH, EC and reservoir basics, read the semi-hydro fertilizing guide.

Choose another route for: Soil-grown mixed plants, organic soil routines or customers who do not want pH/EC awareness, unless the product is specifically a simple hydroculture option.

HESI Hydro Growth

Hydro / semi-hydro base nutrient

HESI Hydro Growth

LECAHydroInert media
Hydro nutrientTechnicalpH/EC check needed

5 ml/L; use in a measured hydro or inert-media routine.

View product
Plagron Hydro A+B

Two-part hydro nutrient

Plagron Hydro A+B

HydroInert mediaA+B
Hydro nutrientTechnicalA+B: mix separately

Max. 2.5 ml/L A plus same amount B; measured hydro routine only.

View product
CANNA Hydro Vega A+B

Run-to-waste hydro nutrient

CANNA Hydro Vega A+B

HydroInert mediaA+B
Hydro nutrientTechnicalA+B: mix separately

4 ml/L A + 4 ml/L B; use only in a measured hydro routine.

View product
CANNA Aqua Vega A+B

Recirculating hydro nutrient

CANNA Aqua Vega A+B

Recirculating hydroInert mediaA+B
Hydro nutrientTechnicalA+B: mix separately

Max. 2 ml/L; for recirculating hydro systems, not simple houseplant feeding.

View product

Organic soil feeding

Organic plant food for soil

Best for: Organic base feeds · Soil-grown plants · Living substrates · Organic soil routines

Choose this route when: You want an organic base fertilizer for soil-style substrates.

Choose another route for: Long-standing hydro reservoirs, pH-controlled inert media, odour-sensitive routines or the cleanest reservoir option.

HESI Bio Grow

Organic base feed

HESI Bio Grow

SoilCocoOrganic routine
Organic base feedBase fertilizerAdjust to light

5 ml/L; organic base feed for soil-style or label-supported coco routines.

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BIOCANNA Bio Vega

Organic growth nutrient

BIOCANNA Bio Vega

Organic soilPotting mixGrowth
Organic base feedBase fertilizerAdjust to light

Max. 2 ml/L; organic base feed for soil-style growth routines.

View product
Biobizz Bio Grow

Organic base fertilizer

Biobizz Bio Grow

SoilCocoOrganic routine
Organic base feedBase fertilizerStart low indoors

Use label/schedule as reference and adapt for indoor plants.

View product
Plagron Alga Grow

Organic soil base feed

Plagron Alga Grow

SoilOrganic mixGrowth
Organic base feedBase fertilizerNot for hydro reservoirs

Max. 4 ml/L; organic base feed for soil routines.

View product
Biobizz Fish Mix

Organic growth feed

Biobizz Fish Mix

SoilCocoOrganic routine
Organic base feedFoliar useFish-based odour

1–4 ml/L depending on substrate; foliar use only where label-supported.

View product

Speciality feeds

Orchids, palms & flowering pot feeds

Best for: Orchids · Palms · Flowering pots · Patio containers · Balcony planters

Choose this route when: You are feeding a plant group or container setup with more specific nutrient needs than a standard foliage shelf.

Choose another route for: Coco, hydro, LECA, mineral substrates or technical inert-media routines unless the product label clearly supports that use.

HESI OrchiVit

Orchid & epiphyte feed

HESI OrchiVit

OrchidsEpiphytesBark mixes
Base fertilizerSpecialty feedFoliar use

1–2 ml/L for slow growth, 3–5 ml/L for faster growth.

View product
Pokon Patio and Balcony Plant Food

Outdoor container feed

Pokon Patio and Balcony Plant Food

Balcony potsPatio containersOutdoor pots
Base fertilizerSpecialty feedOutdoor/container use

Container feed for outdoor pots and balcony planters. Follow label dosage.

View product

Rooting & starter support

Rooting, cuttings & starter support

Best for: Cuttings · Seedlings · Root establishment · Repotting · Starter phase

Choose this route when: You need root support, starter feeding, rooting powder, rooting gel or early-stage plant care.

Choose another route for: Long-term feeding of established plants. Root products and starter products do not replace a suitable base fertilizer.

● Root support liquids

Use these around cuttings, fresh roots, repotting or restart after root disturbance. They support a root-focused stage; they are not regular maintenance food.

HESI Root Complex

Root & repotting support

HESI Root Complex

RootsRepottingSoil/Coco/Hydro
Support productRoot support onlyNot a complete fertilizer

5 ml/L; use half dose for frequent long-term use.

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CANNA Rhizotonic

Root stimulator

CANNA Rhizotonic

RootsCuttingsRepotting
Support productRoot support onlyNot a complete fertilizer

4 ml/L in the first week, then reduce once roots develop.

View product
BIOCANNA Bio Rhizotonic

Organic root support

BIOCANNA Bio Rhizotonic

RootsOrganic routineRepotting
Support productRoot support onlyNot a complete fertilizer

4 ml/L in the first week, then reduce after strong roots develop.

View product
Biobizz Root Juice

Organic root support

Biobizz Root Juice

RootsSeedlingsCuttings
Support productRoot support onlyNot a complete fertilizer

1–4 ml/L; root support only, not regular plant food.

View product
Plagron Power Roots

Root stimulator

Plagron Power Roots

RootsSoilCoco
Support productRoot support onlyNot for hydro reservoirs

1 ml/L; root support for soil/coco hand-watering routines.

View product
Plagron Hydro Roots

Hydro root support

Plagron Hydro Roots

RootsHydroInert media
Support productRoot support onlyRoot support only

1 ml/L; root support for hydro-style routines.

View product

● Starter feeds

Starter feeds belong to seedlings, rooted cuttings and early growth stages. Move to a suitable base fertilizer once the plant is established and actively growing.

CANNA Start

Starter nutrient

CANNA Start

SeedlingsRooted cuttingsPlugs
Starter onlyNot long-term feed

Max. 4 ml/L; starter feed for seedlings and rooted cuttings.

View product

● Rooting aids

Rooting powder and rooting gel are propagation aids. They are not fertilizers and should not be used as weekly plant food.

Water correction

CalMag, soft water & pH correction

Best for: Soft water · RO water · Demineralised water · Coco · Hydro · Semi-hydro · Measured nutrient water

Choose this route when: You need to correct water quality, add calcium/magnesium where the routine calls for it, or adjust measured nutrient-water pH.

Choose another route for: Complete plant food. CalMag and pH products are correction tools, not normal base fertilizer.

● CalMag correction

CalMag products support calcium and magnesium levels in soft, RO or demineralised water, and in some coco, hydro or semi-hydro routines. They are not complete plant food.

HESI CalMag

Calcium + magnesium correction

HESI CalMag

Soft waterRO waterCoco
Support productSoft water / RONot a complete fertilizer

Dose by EC/water quality; RO water approx. 0.6–0.8 ml/L.

View product
CANNA CalMag Agent

Mineral correction

CANNA CalMag Agent

Soft waterRO waterCoco/Hydro
Support productSoft water / RONot a complete fertilizer

Use to correct low-mineral water; not needed automatically.

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Biobizz Calmag

Organic CalMag correction

Biobizz Calmag

Soft waterRO waterCoco
Support productSoft water / RONot a complete fertilizer

Dose by water quality or schedule; correction product only.

View product
Plagron CalMag Pro

Calcium + magnesium support

Plagron CalMag Pro

Soft waterRO waterCoco
Support productSoft water / RONot a complete fertilizer

Max. 1 ml/L; use for RO/soft-water correction.

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● pH down products

pH down products lower nutrient-water pH. Mix nutrients first, measure pH, adjust gradually, then measure again.

Plagron pH Min

Technical pH down

Plagron pH Min

Nutrient waterpH downMeasurement
TechnicalpH correction onlyMeasure pH

Add drop by drop to target pH 5.5–6.5.

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● pH up products

pH up products raise nutrient-water pH. Use them only with pH measurement and label instructions.

CANNA pH Plus 5%

Technical pH up

CANNA pH Plus 5%

Nutrient waterpH upMeasurement
TechnicalpH correction onlyMeasure pH

Dose by measurement only; not plant food.

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Plagron pH Plus

Technical pH up

Plagron pH Plus

Nutrient waterpH upMeasurement
TechnicalpH correction onlyMeasure pH

Add drop by drop to target pH 5.5–6.5.

View product

Additives

Root-zone care & plant vitality additives

Best for: Enzymes · Microbes · Silicon · Vitamins · Vitality support · Optional additives

Choose this route when: You already have the base feed covered and want a specific support product for root-zone care, substrate maintenance, silicon, vitality or label-supported foliar use. For a deeper breakdown, read the plant additives guide.

Choose another route for: Your first base fertilizer.

● Root-zone care

Root-zone products support substrate or root-zone maintenance alongside a suitable base feed. They are not pest control, disease treatment, root-rot cures or fertilizer replacements.

HESI PowerZyme

Enzyme support

HESI PowerZyme

Root-zoneSubstrateSoil/Coco/Hydro
Support productNot a complete fertilizer

2 ml/L; substrate and root-zone support only.

View product
CANNA Cannazym

Enzyme additive

CANNA Cannazym

Root-zoneEnzymesSoil/Coco/Hydro
Support productNot a complete fertilizer

2.5 ml/L; enzyme support alongside a base feed.

View product
Biobizz Microbes

Microbial support

Biobizz Microbes

MicrobesRoot-zoneSoil/Coco/Hydro
Support productNot a complete fertilizer

0.2–0.4 g/L weekly; microbial support only.

View product
Plagron Pure Zym

Enzyme support

Plagron Pure Zym

Root-zoneSoilCoco
Support productNot for hydro reservoirs

1 ml/L; enzyme support for soil/coco routines.

View product

● Plant vitality & strength additives

Vitality, vitamin and silicon products are optional support. Use them with a clear reason and follow the label. Foliar-use products should be treated as application-specific support, not as substrate fertilizer. Read the plant additives guide if you are comparing additives, enzymes, vitamins and root-zone products.

HESI SuperVit

Vitamin / vitality additive

HESI SuperVit

VitaminsSoil/Coco/HydroSupport
Support productNot a complete fertilizer

1 drop/4.5 L; concentrated additive only.

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HESI Hesilicio

Silicon support

HESI Hesilicio

SiliconSoil/Coco/HydroFoliar
Support productFoliar useNot a complete fertilizer

Max. 0.5 ml/L; silicon support via root or foliar use.

View product
Biobizz Alg A Mic

Vitality additive

Biobizz Alg A Mic

VitalitySoil/Coco/HydroFoliar
Support productFoliar useNot a complete fertilizer

1–4 ml/L; optional vitality support.

View product
Biobizz Acti Vera

Vitality additive

Biobizz Acti Vera

VitalitySoil/Coco/HydroFoliar
Support productFoliar useNot a complete fertilizer

5 ml/L watering or 1–2 ml/L foliar use.

View product
Biobizz Bio Heaven

Premium additive

Biobizz Bio Heaven

VitalitySoil/Coco/HydroSupport
Support productNot a complete fertilizer

2–5 ml/L; additive only, not base food.

View product
Plagron Silic Rock

Silicon support

Plagron Silic Rock

SiliconSoilCoco
Support productNot for hydro reservoirs

Max. 1 ml/L; silicon support with low-pH caution on product page.

View product
Plagron Vita Race

Foliar vitality support

Plagron Vita Race

FoliarPeat/CocoSupport
Support productFoliar useNot a complete fertilizer

Max. 5 ml/L foliar spray; not root-zone base food.

View product

How to compare product types

Not every bottle is plant food. Use this comparison to separate regular feeding from support products and technical correction tools. For more background on fertilizer formats, NPK, micronutrients and salt buildup, read the full houseplant fertilizer guide.

Main feed

Base fertilizer

Main job: Supplies the main nutrients for growth.

Best for: Regular feeding.

Watch out: Do not stack two complete base feeds in the same routine.

Organic

Organic base feed

Main job: Feeds plants in soil-style organic routines.

Best for: Soil-grown plants and living-substrate routines.

Watch out: Organic does not automatically mean cleaner or better for reservoirs.

Coco

Coco fertilizer

Main job: Feeds plants grown in coco or coco-heavy substrates.

Best for: Coco routines.

Watch out: pH, water quality and consistent feeding matter more than in soil.

Hydro

Hydro / semi-hydro nutrient

Main job: Feeds plants grown in inert media or nutrient water.

Best for: LECA, mineral substrates, hydro and measured routines.

Watch out: pH and EC should be checked.

Correction

CalMag

Main job: Corrects calcium and magnesium levels.

Best for: Soft water, RO water, coco and some hydro/semi-hydro routines.

Watch out: Not complete plant food.

Roots

Root support

Main job: Supports rooting, cuttings, seedlings and repotting.

Best for: Young plants, fresh roots and root establishment.

Watch out: Not a regular maintenance fertilizer.

Root-zone

Enzymes / microbes

Main job: Supports root-zone or substrate maintenance.

Best for: Specific substrate routines.

Watch out: Not pest control, not disease treatment and not a base feed.

pH

pH up/down

Main job: Adjusts nutrient-water pH.

Best for: Measured coco, hydro, LECA or semi-hydro routines.

Watch out: Not fertilizer. Use only with pH measurement.

Optional

Vitality additives

Main job: Adds optional support such as vitamins, silicon or label-supported foliar use.

Best for: Specific routines after the base feed is already covered.

Watch out: Optional, not essential.

How to build a simple feeding routine

A good feeding routine does not need many bottles. Start with the base feed that fits the plant and substrate, then add support only when the plant stage, water quality or growing setup makes it useful.

Table with gardening supplies including many various fertilizers pots, bottles, and tools in a sunlit room.

How to use brand feeding schedules

Brand feeding schedules are useful references for coco, LECA, hydro and measured nutrient routines. For mixed indoor plants, leafy houseplants and soil-grown collections, treat them as starting points, not automatic weekly programmes.

Many schedules are built around crop phases, strong growth, flowering, harvest timing or reservoir systems. That does not always translate directly to a mixed indoor plant collection.

Start with one suitable base fertilizer, follow the product label, and adjust strength to active growth, substrate, plant size, light level and water quality. Add CalMag, root products, enzymes, silicon or pH correction only when your setup calls for them.

Exact dosage, compatibility and safety notes for each of the mentioned products can be found on the individual product pages.

Fertilizer FAQ

Further reading on houseplant fertilizing

Need more background before choosing a product? These guides explain the feeding basics, semi-hydro nutrient routines and support products in more detail.

Set of glass bottles with different fertilizers on a wooden table with a watering can and plants in the background.

Ready to choose your plant food?

Start with your plant type or growing setup, pick one suitable base fertilizer, then add support products only when your routine needs them. That keeps feeding clearer, easier to adjust and less likely to turn into an unnecessary bottle stack.