Plagron pH minus 59% pH down additive based on phosphoric acid, suitable for growth and flowering stages and compatible with all growing systems, available at Grow Island.

Plagron pH minus 59% liquid pH down additive shown in two bottle sizes, used to adjust nutrient solution pH to 5.5–6.5 for optimal nutrient uptake, available at Grow Island.

Plagron pH - (59%)

Data sheet / description

Product number

PL-PH-1

Manufacturer

Plagron

Postfach 10188
6000 GD Weert,

Netherlands

servicedesk@plagron.com

www.plagron.com

Weight

1.00 kg

kiszerelés:

1l

18.90 €

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Product description

Plagron pH- (59%) – precise pH reduction for optimal nutrient availability

Plagron pH- (59%) is a pH controller designed to lower the pH of irrigation and nutrient solutions. Keeping pH within the ideal range of 5.5 to 6.5 is crucial for efficient nutrient uptake and balanced availability, directly supporting plant metabolism, vigor and healthy development.

If pH is too high or too low, certain nutrients can become unavailable or behave unfavorably, leading to stress and growth issues. Plagron pH- helps correct and maintain pH in the optimal zone, improving uptake efficiency and supporting more consistent performance throughout the grow.

Key benefits

Precisely lowers pH to the 5.5–6.5 range
Supports efficient nutrient uptake and balanced feeding
Helps prevent pH-related stress and nutrient issues
Suitable for growth and flowering
Compatible with common irrigation and feeding systems

Application and dosage

Recommended dilution is 0.5 ml per liter of irrigation water. Add gradually while measuring pH until the desired value is reached. This ensures controlled adjustment without overshooting.

Note: Always dose slowly and measure continuously. Required amounts may vary depending on water hardness, nutrients and your setup.

Grow Island recommendation

A stable pH is one of the strongest foundations for a successful grow. Plagron pH- (59%) is a reliable tool when you want nutrients to stay available and plants to stay consistent.

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Super Orange Glue pre-grown hemp plant

25.90 €

Prism Marker cannabis flower close-up, Elev8 Cut genetics – Permanent Marker × RS11 – Grow Island

-8%

Prism Marker cannabis clone

~~18.00 €~~ 16.50 €

The Queen S1 komplette Cannabispflanze The Queen S1 full cannabis plant structure COPYCAT GENETIX CUT from USA

Queen Hanfstecklinge Grow Island (4)(1)

-3%

The Queen S1 cannabis clone

~~25.00 €~~ 24.20 €

Runtz Hanfstecklinge Grow Island

Runtz cannabis clone

15.90 €

Colorado Nightshifter #11 – Rerentless Cut Hanfstecklinge Grow Island

-25%

Colorado Nightshifter cannabis clone

~~19.00 €~~ 14.20 €

Blue Zushi Hanfstecklinge Grow Island (3)

-25%

Blue Zushi TenCo Cut Cannabis Clone

~~19.00 €~~ 14.20 €

AC Infinity Propagator digital control panel with display, programmable timer, and intensity adjustment.

AC Infinity Propagator Samsung LM301H EVO LED – for 40 plants

114.90 €

Snow White cannabis clone with fresh root tips, Nirvana Seeds genetics, White Widow × Northern Lights

-11%

Snow White cannabis clone

~~15.90 €~~ 14.20 €

Monster Maker cannabis plant with blooming bud on black background, Sweet Seeds genetics Permanent Marker x Chimera #3, Grow Island Edition.

Monster Maker Cannabis clone

16.00 €

Rooted Shiatsu Kush clone held in gloved hand, BC Bud Depot genetics, Amami Ōshima pheno, Grow Island branding.

Shiatsu Kush cannabis clone

15.00 €

Wubba Luba Bud autoflowering cannabis seed packaging by Illuminati Lost Seeds

Illuminati Lost Seeds / AUTO / Wubba Luba Bud

42.00 €

-32%

Illuminati Lost Seeds / FEM / Win Gardumim Leviosa

~~44.00 €~~ 30.00 €

-11%

Banana Runtz hemp plant

~~15.90 €~~ 14.20 €

-15%

Super Buff Cherry 26 GMSL cut hemp plant

~~15.90 €~~ 13.50 €

Fresh Amnesia Gold clone with visible roots held in hand – Pyramid Seeds genetics, Grow Island. (Amnesia Haze x Lennon)

Amnesia Gold hemp plant

15.90 €

Flowermate V5 Nano Vaporizer

119.90 €

Sour Ripper hemp plant

15.90 €

pink payton Hanfstecklinge Grow Island

Pink Payton hemp plant

20.00 €

Zoap hemp plant

15.90 €

Khalifa kush Hanfstecklinge Grow Island (2)

Khalifa Kush hemp plant

15.90 €

Pre-grown White Russian cannabis plants in protective bottles, safely packed for delivery.

White Russian cannabis plant in a black pot on a Grow Island cultivation table, strong and vibrant during the vegetative stage.

White Russian pre-grown hemp plant

25.90 €

Sleepy Joe pre-grown hemp plant

25.90 €

Peyote Cookies pre-grown hemp plant and five other in the background

Peyote Cookies pre-grown hemp plant

25.90 €

Mimosa x Orange Punch pre-grown hemp plant and five other in the background

Mimosa x Orange Punch pre-grown hemp plant

25.90 €

Ice Cream Cake pre-grown cannabis plant approx. 35–45 cm tall with strong side branches

Ice Cream Cake clone with strong roots and stable growth for healthy development

Ice Cream Cake pre-grown hemp plant

25.90 €

Power Plant pre-grown hemp plant and five other in the background

Power Plant pre-grown hemp plant

24.90 €

Candy Store pre-grown hemp plant and five other in the background

Candy Store pre-grown hemp plant

24.90 €

-11%

Lumen King Light Fixture 720W LED Eco Line

~~279.90 €~~ 249.90 €

-8%

Lumen King Light Fixture 400W LED Eco Line

~~249.90 €~~ 229.90 €

-38%

Canna Terra Easybox

~~15.90 €~~ 9.90 €

Animal Tsunami cannabis clones — illustrated fox‑mask surfer with purple buds; Durban Thai Highflyer × Chemdog 91BX3; Grow Island

Fresh Animal Tsunami clone held in hand with visible roots – Jungle Boys (Animal Cookies x Caramel Tsunami) genetics, Grow Island.

Animal Tsunami hemp plant

14.20 €

Bio Tabs - Perfect Plant Pack

22.50 €

-27%

Tyson 2.0 x Stündenglass Gravity Infuser

~~549.90 €~~ 399.90 €

Blockberry hemp plant

13.50 €

Osmosis filter

79.90 €

-6%

VENTY Vaporizer

~~449.00 €~~ 419.90 €

Sativa Morning Mix of pre-grown hemp plant - 3 pcs

59.90 €

Indica Night Mix of pre-grown hemp plant - 3 pcs

59.90 €

Oldschool Mix of pre-grown hemp plant - 3 pcs

74.90 €

AK47 cannabis flower close-up with dense structure and strong resin production

AK47 clone with strong roots and stable growth for a reliable start

AK47 pre-grown hemp plant

24.90 €

World Of Seeds / FEM / Afghan Kush (Pure Origin Collection)

18.50 €

World Of Seeds / FEM / Colombian Gold (Pure Origin Collection)

19.50 €

World Of Seeds / FEM / Ketama (Pure Origin Collection)

19.00 €

World Of Seeds / FEM / Pakistan Valley (Pure Origin Collection)

20.00 €

Gelato 45 pre-grown hemp plant

24.90 €

Gary Payton x Jealousy flower close-up with dense trichomes and darker tones

Gary Payton & Jealousy pre-grown hemp plant

26.90 €

Amnesia Haze Core Cut flower close-up with dense trichomes and light green tones

Amnesia Haze Core Cut clone with strong roots and stable growth

Amnesia Core Cut pre-grown hemp plant

24.90 €

VapoCane Fusion Set

29.90 €

-13%

Trimming bag-Drytrim

~~149.90 €~~ 129.90 €

HortiLight Green Led headlight

14.90 €

Banoreoz hemp plant

15.90 €

Baby Jokerz illustration featuring a tattooed woman with joker‑style makeup, night city scene and cannabis buds; White Runtz × Jet Fuel Gelato (CLTVD cut); Grow Island.

Healthy Baby Jokerz clone with fresh roots, held in hand – CLTVTD (White Runtz × Jet Fuel Gelato) Genetics clones Grow Island.

Baby Jokerz (CLTVD cut) hemp plant

14.20 €

Strawberry Guava hemp plant - Emerald cup winner cut 2023

14.20 €

MAC1 Hanfstecklinge Grow Island (6)

-11%

MAC 1 (Capulator cut) hemp plant

~~15.90 €~~ 14.20 €

Sweet Seeds / AUTO / Red Mimosa XL

30.00 €

Sweet Seeds / FEM / Psicodelicia

24.00 €

Sweet Seeds / FEM / Killer Kush F1

24.00 €

Sweet Seeds / FEM / Red Hot Cookies

28.00 €

Sweet Seeds / AUTO / Jealousy Z XL

30.00 €

Sweet Seeds / FEM / Black Muffin F1

30.00 €

Sweet Seeds / FEM / Do-Sweet-Dos

29.50 €

Gary Payton & Jealousy hemp plant

14.20 €

Cap Junky hemp plant

14.20 €

South African Kwazulu hemp flower bud

South African Kwazulu hemp flower bud

World Of Seeds / FEM / South African Kwazulu (Pure Origin Collection)

21.00 €

Kilimanjaro hemp flower bud

Kilimanjaro hemp flower bud

World Of Seeds / FEM / Kilimanjaro (Pure Origin Collection)

19.50 €

Wild Thailand hemp flower bud

Wild Thailand hemp flower bud

World Of Seeds / FEM / Wild Thailand (Pure Origin Collection)

21.00 €

Fast Buds / FEM / Lemon Mandarin

36.00 €

Fast Buds / FEM / Papaya Sherbet

36.00 €

Fast Buds / FEM / Rainbow Melon

36.00 €

Fast Buds / FEM / Gorilla Melon

36.00 €

-20%

Dutch Passion / FEM / Melonade Runtz

~~24.95 €~~ 19.90 €

-29%

Dutch Passion / FEM / Lemon Z

~~34.95 €~~ 24.90 €

-18%

Pure Tent V2.0 120x120x200

~~183.00 €~~ 149.90 €

Sleepy Joe hemp plant

14.20 €

pineapple fruz Hanfstecklinge Grow Island (4)

Pineapple Fruz (Seed Junky Genetics) hemp plant

14.20 €

Studio 54 (Deepeast Farm/Doja Cut) hemp plant

14.20 €

Dantes Inferno 8 logi, in the middle white boxer dog with one joint in the mouth and red cannabis leafs on the side

Dantes Inferno #8 cannabis clone with extremely frosty buds and purple leaves – Devil Driver x Oreoz genetics

-16%

Dantes Inferno 8 (Milehighdave Cut) hemp plant

~~16.00 €~~ 13.50 €

Apple Fritter artwork showing dense colas; cross Sour Apple × Animal Cookies, Lumpy’s Cut; Grow Island.

Apple Fritter artwork with a bearded figure like Jesus wearing a cannabis leaf crown amid lightning and buds; Sour Apple × Animal Cookies, Lumpy’s Cut; Grow Island.

Apple Fritter (Lumpys Cut) hemp plant

14.20 €

Strawberry Banana hemp plant

13.50 €

Super Orange Glue hemp plant

13.50 €

Apple Strudel hemp flower bud

Apple Strudel hemp flower bud

Fast Buds / AUTO /Apple Strudel

36.00 €

Anesia Seeds / FEM / Captain Future 1

38.00 €

Anesia Seeds / FEM / Captain Future

38.00 €

Anesia Seeds / FEM / Blackberry Moonrocks

38.00 €

Anesia Seeds / FEM / Cash Cow

36.50 €

Anesia Seeds / FEM / Frozen Black Cherry

39.50 €

Anesia Seeds / FEM / Nova OG

35.00 €

Permanent Marker hemp plant

14.20 €

Virus test in which the Wedding cake is negative for hop latent virus.

Wedding Cake hemp plant

13.50 €

White Satin hemp plant

13.50 €

Super Lemon Haze hemp plant

13.50 €

Critical Plus 2.0 hemp plant

13.30 €

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