26 items found from eBay international sellers

  • Humboldt Nutrients Master A&B Premium 2 Part Plant Fertilizer Feed - Hydroponics

    £27.50 to £42.50
    Est. delivery dateEst. delivery Wed, Jul 18
    FAST & FREE
    Brand: Humboldt Nutrients
    3 watching
  • Humboldt Nutrients Big Up Powder 113g/4oz - Premium Flower Plant Bloom Booster

    A local legend in Humboldt County: Big Up Powder is a premium bloom booster. Humboldt Nutrients agronomists and chemists have developed Big Up Powder after years of research and local trials. Many similar products contain artificial colouring and dyes, but Big Up Powder is free of all of these unnecessary ingredients.
    £30.00
    Brand: Humboldt Nutrients
    Free postage
    Only 1 left!
  • Humboldt Nutrients White Widow 57g/2oz Mycorrhizae Root Zone Health & Expansion

    Humboldt - White Widow 57g. Mycorrhizal inoculants are crucial to sustaining a healthy, expansive root zone. Humboldt Nutrients is proud to launch the newest and most powerful soluble mycorrhizal,White Widow.
    £29.95
    Est. delivery dateEst. delivery Wed, Jul 18
    FAST & FREE
    Brand: Humboldt Nutrients
  • Humboldt Nutrients Big Up Powder 113g/4oz - Premium Flower Booster CR082 MM 01

    A local legend in Humboldt County: Big Up Powder is a premium bloom booster. Humboldt Nutrients agronomists and chemists have developed Big Up Powder after years of research and local trials. Many similar products contain artificial coloring and dyes, but Big Up Powder is free of all of these unnecessary ingredients.
    £17.99
    Top Rated Plus
    Free postage
    Brand: Humboldt Nutrients
  • Humboldt County's Own Emerald Triangle 32oz Quart REAL GRAVITY Flower

    Harden your flowers from bottom to top. -Add size and weight to flowering plants. -Uniquely prepared kelp extract and phosphorus based additive will harden your flowers from the top to the bottom.
    £98.44
    From United States
    £46.51 postage
    Brand: Humboldt Nutrients
  • Humboldt Structual Integrity 946ml

    Structural Integrity (S.i.). Using Potassium Silicate for your garden protects plants from high salinity, pests, molds, and transpiration in higher temperatures. SI is essential to the leaf and stem strength and allowing the plant to hold up heavier fruits.
    £29.99
    Est. delivery dateEst. delivery Wed, Jul 18
    FAST & FREE
    Brand: Humboldt Nutrients
  • Humboldt County's Own Gravitation Like Gravity G10 32oz SAVE $$ W/ BAY HYDRO $$

    We started with our original proprietary kelp extract and took it to the next level. Drastically increases the size and mass of flowers. For maximum “Gravity effect” use with Sonic Bloom and Killer Tea.
    £40.87
    From United States
    £27.08 postage
    Brand: Humboldt Nutrients
  • Humboldt Sea-Cal 946ml

    Sea Cal may be utilized for any type of vegetable, flower or herb. Adding Sea Cal to our complete nutrient feeding schedule can provide maximum flower production, improved plant structure, and heavy fruit yields.
    £24.99
    Est. delivery dateEst. delivery Wed, Jul 18
    FAST & FREE
    Brand: Humboldt Nutrients
  • Humboldt Nutrients White Widow 8oz Mycorrhizal inoculants SAVE $$ W/ BAY HYDRO

    Mycorrhizal inoculants are crucial to sustaining a healthy, expansive root zone. Humboldt Nutrients is proud to launch our newest and most powerful soluble mycorrhizae product, White Widow. No other mycorrhizal on the market has more propagules per gram.
    £62.08
    From United States
    £17.80 postage
    Brand: Humboldt Nutrients
  • Humboldt County's Own Gravitation Like Gravity G10 8oz SAVE $$ W/ BAY HYDRO $$

    We started with our original proprietary kelp extract and took it to the next level. Drastically increases the size and mass of flowers. For maximum ?. Gravity effect?. use with Sonic Bloom and Killer Tea.
    £18.14
    From United States
    £16.92 postage
    Brand: Humboldt Nutrients
    37 sold
  • Humboldt Nutrients White Widow 4oz Mycorrhizal inoculants SAVE $$ W/ BAY HYDRO

    Mycorrhizal inoculants are crucial to sustaining a healthy, expansive root zone. Humboldt Nutrients is proud to launch our newest and most powerful soluble mycorrhizae product, White Widow. No other mycorrhizal on the market has more propagules per gram.
    £37.84
    From United States
    £10.61 postage
    Brand: Humboldt Nutrients
  • Humboldt Nutrients White Widow 2oz Mycorrhizal inoculants SAVE $$ W/ BAY HYDRO

    Mycorrhizal inoculants are crucial to sustaining a healthy, expansive root zone. Humboldt Nutrients is proud to launch our newest and most powerful soluble mycorrhizae product, White Widow. No other mycorrhizal on the market has more propagules per gram.
    £24.20
    From United States
    £10.61 postage
    Brand: Humboldt Nutrients
  • Humboldt County's Own Gravitation Custom SZ 8oz SAVE $$ W/ BAY HYDRO $$

    We started with our original proprietary kelp extract and took it to the next level. Drastically increases the size and mass of flowers. For maximum Gravity effect use with Sonic Bloom and Killer Tea.
    £14.35
    From United States
    £17.80 postage
    Brand: Humboldt Nutrients
  • Humboldt County's Own Purple MAXX 8oz Emerald Triangle SAVE $$ W/ BAY HYDRO $$

    Bay Hydro LLC. Unique in the industry. Amino acid based cocktail that intensifies final color in susceptible varieties. No dies, no tricks. Don’t wait and hope. Bay Hydro LLC and the advertisers each reserve the right to limit the provision of their products or services to any person, geographic area, or jurisdiction they so desire and to limit the quantities of any products or services that they provide.
    £22.69
    From United States
    £17.80 postage
    Brand: Humboldt Nutrients
  • 8oz Humboldt Counties Snow Storm Ultra SAVE $$ W/ BAY HYDRO

    A Humboldt County original. Bay Hydro LLC. This amino acid based product tricks the plant into thinking its heat stressed. The result is intense resin, fragrance and flavor production plus the well-known "frosted" look that growers love.
    £16.63
    From United States
    £17.80 postage
    Brand: Humboldt Nutrients
  • Humboldt Nutrients Honey Hydro Carbs 1 Gallon 1G - carbohydrates supplement

    Humboldt Honey Hydro Carbs will fortify your garden with energy, your fruit with flavor; and will allow your plants to correctly regulate vital internal and external processes as they continue to grow.
    £33.94
    From United States
    £64.39 postage
    Brand: Humboldt Nutrients
  • Humboldt Nutrients Calyx Magnum 1 Quart - Qt Calcium & Magnesium Supplement

    Magnesium, at 1.4 percent, is an essential mineral used in the process of producing chlorophyll and is critical for the uptake and migration of phosphorus in plants, making it essential for blooming and flowering varieties of plants.
    £14.58
    From United States
    £31.92 postage
    Brand: Humboldt NutrientsCustoms services and international tracking provided
  • HUMBOLDT NUTRIENTS - BIG UP POWDER 57g/big up /big up/big up/The original!!!!!!!

    A local legend in Humboldt County: Big Up Powder is a premium bloom booster. Humboldt Nutrients agronomists and chemists have developed Big Up Powder after years of research and local trials. Many similar products contain artificial coloring and dyes, but Big Up Powder is free of all of these unnecessary ingredients.
    £11.05
    Brand: Humboldt Nutrients
    Free postage
  • Humboldt Nutrients Honey Organic ES 1 Gallon Hydroponics Nutrients

    $Humboldt Nutrients Humboldt Honey ES is a premium blend of cane molasses, yucca, kelp and ocean fish. This carb source is as unique as it is strong. The ES means Extra Strength. It increases brix levels by providing sugars to beneficial bacteria, fungi, and your plants.
    £34.97
    From United States
    £16.09 postage
    Brand: Humboldt NutrientsCustoms services and international tracking provided
  • Humboldt Nutrients Sticky 32 oz Premium Wetting Agent Foliar Spray

    With Humboldt Sticky your foliar sprays are fully utilized by the plant, eliminating waste or overfeeding. High performance nutrients are expensive and no-one likes to see them go to waste. Humboldt Nutrients Sticky 32 oz.
    £18.90
    From United States
    £28.88 postage
    Brand: Humboldt NutrientsCustoms services and international tracking provided
  • Humboldt Nutrients HNF405 Flavorful, 32-Ounce

    MPN: HNF405. Item model number: HNF405. Size:1 Quart FlavorFul is highly refined humic acid. The majority of refined Humic acid formulas on the market are. 01-Percent concentration. FlavorFul is 8-Percent refined Humic acid with a dark rich color, indicating the high concentration.
    £21.69
    From United States
    £26.51 postage
    Brand: Humboldt Nutrients
  • Humboldt Nutrients HNHH405 Honey Hydro Carbs, 32-Ounce

    MPN: HNHH405. Item model number: HNHH405. Size:1 Quart Humboldt Honey Hydro Carbs is an excellent source of carbohydrates for all plants. Humboldt honey hydro is loaded with sugars which feed beneficial micro-organisms and plants.
    £17.14
    From United States
    £26.51 postage
    Brand: Humboldt Nutrients
  • Humboldt MM400 Mayan Microzyme Germination Kit, 16-Ounce

    Click here to see description.
    £45.59
    From United States
    £24.54 postage
    Brand: Humboldt Nutrients
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