Horticulture Source » Gardening & Hydroponics Store » Nutrients & Supplements   Mobile   Secure |  My Account | Cart Contents | Checkout )
Horticulture Source
Quick Find
Help [?]   Search Descriptions Phrase   Advanced
Secure   My Account   Cart Contents   Checkout  
You have JavaScript disabled or are using a browser which does not support it. Please turn on JavaScript or consider upgrading or switching your web browser, e.g. FireFox or Opera.
Celebrating our 11th Year of Service to Gardeners! Thank you for your business!
Specials more
Vinyl Tubing. 1/4 in
Vinyl Tubing. 1/4 in
$0.17
$0.16
What's New? more
Bubble Magic Pollen Tumbler 500 gram
dl-190500
Bubble Magic Pollen Tumbler 500 gram
$481.80
Shop By Price
Categories
* Lamps / Tubes / Bulbs ++ (525)
* Lighting Systems ++ (1196)
! Nutrients & Supplements (4261)
* Composters & Compost Tea Brewing (42)
* Organic Gardening (527)
* Leaf Shines & Washes (94)
* Pest & Disease Control (595)
* Cloning & Propagation (440)
* Grow Systems ++ (713)
* Meters, Timers & Instruments ++ (633)
* Pots / Containers (1027)
* Pumps, Irrigation & Watering Supplies ++ (1728)
* Grow Media (552)
* Plant Seeds (62)
* Environmental Control ++ (2024)
* Greenhouses (84)
* Grow Rooms / Tents (166)
* Reflective / B&W Films (143)
* Garden Accessories ++ (1089)
* Hand Tools ++ (450)
* Gardening Books & DVDs (56)
* Growing Apparel & Bags (119)
Manufacturers more
Ads
Ads
Languages
English Deutsch Español

What do we have here?
Nutrients & Supplements: Plant Food, Nutrients, Fertilizers & Supplements - Primary & Secondary, Essential & Minor Elements, Macronutrients, Micronutrients

Show: 
What do we have here?
Displaying 421 to 440 (of 4261 products) Result Pages: [<< Prev]  ... 21  22  23  24  25  26  27  28  29  30  31  32  33  34  35  36  37  38  39  40 ...  [Next >>] 
 Sort by Popularity   Manufacturer   Product(s)   Model   Price+   Buy Now 
 Humboldt White Widow 1oz (12/Cs)   Humboldt Nutrients   Humboldt White Widow 1oz (12/Cs) 
Humboldt Nutrients White Widow Humboldt Nutrients is proud to launch our newest and most powerful soluble Mycorrhizal, White Widow. White Widow is a Mycorrhizal powder containing an extremely high and diverse amount of mycological spores. With White Widow the speed and aggressiveness of your plant’s root development is unprecedented. White Widow is bacteria free, making it ideal f... This item is sold individually. — Ships from SS: WA, CA, CO, MI, TN, PA, FL USA....more info.
 723222   $8.87 
 Down To Earth Oyster Shell - 25 lb   Down to Earth   Down To Earth Oyster Shell - 25 lb 
Oyster Shell flour is an all natural source of high quality Calcium that is ground into varying sizes to ensure an immediate and sustained release of this valuable nutrient. Calcium promotes strong root development, improves nutrient uptake and boosts plant immunity. Oyster Shell builds optimum tilth by improving the texture, aeration and water penetration of soils.... — Ships separately from SS: WA, CA, CO, MI, TN, PA, FL USA....more info.
 723746   $8.88 
 Elements Micro Qt 0-0-1   Earth Juice   Elements Micro Qt 0-0-1 
Hydro Organics / Earth Juice Elements Micro Qt 0-0-1 (HOEM35042)Mixes, native soils and as a hydroponic additive. Elements Micro is a micronutrient formula developed for plants to help prevent and treat micronutrient deficiencies. For use as a Micronutrient Booster or as part of Elements Total Solution. Indoor/outdoor plants, soil and hydroponics. ... — Ships from HF: OR, CA, CO, PA, TX, FL USA....more info.
 hf-HOEM35042   $8.88 
 AI ROOTS ORGANICS NITROGEN BAT GUANO 9-3-1 - 3 LB (6/CASE)   Aurora Innovations   AI ROOTS ORGANICS NITROGEN BAT GUANO 9-3-1 - 3 LB (6/CASE) 
Roots Organics Nitro Bat Guano 9 - 3 - 1 ROOTS NITROGEN BAT GUANO 3LB Roots Organics Nitro Bat Guano is an excellent source of nitrogen, phosphorus, and calcium. Carefully processed and sifted to make it easy to work with, Roots Organics Nitro Bat Guano encourages vigorous growth and is fast acting for quick results. All of the Roots Organics guanos have been carefully sourced fo... This item is sold individually. — Ships from SS: WA, CA, CO, MI, TN, PA, FL USA....more info.
 720940   $8.89 
 GH CaliMagic - Quart   General Hydroponics   GH CaliMagic - Quart 
CALiMAGic™ - is a concentrated blend of readily available Calcium and Magnesium. It is formulated to assist fast growing plants by preventing secondary nutrient deficiencies. CALiMAGic helps optimize plant nutrition and enhances plant growth and development while preventing blossom end rot and tip burn in many crops such as tomatoes and lettuce as well as other Calcium intensive... — Ships from Seattle, Washington USA....more info.
 eco-2844   $8.91 
 NPK RAW Kelp 0.125 lb Dry (12/Cs)   NPK Industries   NPK RAW Kelp 0.125 lb Dry (12/Cs) 
NPK RAW Kelp 0-0-9 RAW Kelp is a fully soluble plant supplement which contains 99% ascophyllum nodosum. RAW Kelp is a great way to supplement any feeding program.... This item is sold individually. — Ships from SS: WA, CA, CO, MI, TN, PA, FL USA....more info.
 717885   $8.92 
 NPK RAW B-Vitamin 0.125 lb Dry (12/Cs)   NPK Industries   NPK RAW B-Vitamin 0.125 lb Dry (12/Cs) 
NPK RAW B-Vitamin RAW B-Vitamin is a fully soluble plant supplement which contains 1% vitamin B1. RAW B-Vitamin is a great way to supplement any feeding program.... This item is sold individually. — Ships from SS: WA, CA, CO, MI, TN, PA, FL USA....more info.
 717855   $8.92 
 Micro quart   Cutting Edge Solutions   Micro quart 
Cutting Edge Solutions Micro quart (CES2401)CES MICRO is the foundation of the CES mineral-based line. MICRO is to be used in conjunction with the GROW and/or BLOOM, in order to achieve a solid fertilizer base which can be used on it's own, or built on with CES additives to achieve maximum growth. MICRO is comprised of a high quality Nitrogen and Calcium base, fortified with micro ... — Ships from HF: OR, CA, CO, PA, TX, FL USA....more info.
 hf-CES2401   $8.92 
 MaxiBloom 2.2 lb. (12/cs)   General Hydroponics   MaxiBloom 2.2 lb. (12/cs) 
MaxiBloom 2.2 lb. (12/cs) (eco-2782)MaxiBloom MAXIBLOOM: Use for the reproductive stage in fast growing annuals. MaxiBloom encourages prolific flowering and fruiting, and increases yields and crop quality. MaxiGro and MaxiBloom are extremely potent, stand-alone, water-soluble, dry concentrate nutrients. Complete in Primary, Secondary, and Micro Nutrients, pH buffered MaxiGro ... This item is sold individually. — Ships from Seattle, Washington USA....more info.
 eco-2782   $8.93 
 Master-A, 16 oz.   Humboldt Nutrients   Master-A, 16 oz. 
Humboldt Nutrients Master-A, 16 oz. (HNMA404)NPK 4-0-3 Humboldt Nutrients Master A&B is a premium two-part fertilizer program designed for all plants made with non-toxic, high quality ingredients. Humboldt Nutrients has formulated this vigorous 2-part nutrient solution for use on any plant, in any growing medium and contains no EDTA’s. The Humboldt Nutrients team of chemists ... — Ships from HF: OR, CA, CO, PA, TX, FL USA....more info.
 hf-HNMA404   $8.94 
 Master-B 16 oz.   Humboldt Nutrients   Master-B 16 oz. 
Humboldt Nutrients Master-B 16 oz. (HNMB404)NPK 1-5-6 Humboldt Nutrients Master A&B is a premium two-part fertilizer program designed for all plants made with non-toxic, high quality ingredients. Humboldt Nutrients has formulated this vigorous 2-part nutrient solution for use on any plant, in any growing medium and contains no EDTA's. The Humboldt Nutrients team of chemists and agr... — Ships from HF: OR, CA, CO, PA, TX, FL USA....more info.
 hf-HNMB404   $8.94 
 VermaPlex Black Sea Kelp Quart (12/Cs)      VermaPlex Black Sea Kelp Quart (12/Cs) 
VermaPlex Black Sea Kelp Black Sea Kelp provides nutrition in the form of a balanced blend of sea plant derived nutrients including: amino acids, humic acid, colloidal minerals and sea kelp extracts. Amino acids feed plants directly but more importantly, they feed beneficial microbes. Contains natural rooting hormones that improve root length, root mass a... This item is sold individually. — Ships from SS: WA, CA, CO, MI, TN, PA, FL USA....more info.
 724215   $8.94 
 Grow More Bio Cozyme Bio Stimulant, 1qt   GrowMore   Grow More Bio Cozyme Bio Stimulant, 1qt 
A 100% organic biostimulant that enhances a plants ability to absorb and utilize nutrients. Derived from natural occurring cytokinins, hormones, enzymes, vitamins, amino acids and micronutrients. Works by enhancing the plants ability to control the movement of nutrients through the stem and leaves and augments the existing enzyme functions in the plant. Increases the synthesis of c... — Ships from HF: OR, CA, CO, PA, TX, FL USA....more info.
 hf-GR16044   $8.96 
 Grow More Mendocino Honey, 1 qt   GrowMore   Grow More Mendocino Honey, 1 qt 
Natural organic honey plus Montmorillinite, a source of over 70 trace elements. A naturally sweet carbohydrate plus organic carbon to stimulate growth. When used in a hydroponic system, it supplies a valuable source of organic carbon & carbohydrates. Increases brix levels resulting in a sweeter taste and aroma. Recommended for plants grown in soil, soilless mixes or hydroponic syst... — Ships from HF: OR, CA, CO, PA, TX, FL USA....more info.
 hf-GR17538   $8.96 
 Grow More Mendocino N-Cal Mag, 1qt   GrowMore   Grow More Mendocino N-Cal Mag, 1qt 
Specially designed to correct physiological nutrient disorders caused by Calcium and Magnesium deficiencies. Improves the mass flow of nutrients within the phloem and improves the translocation of carbohydrates. Calcium deficiency retards growth of stems, leaves, roots and causes blossom end drop and die back. A calcium deficiency also reduces thickness of leaves and interferes wit... — Ships from HF: OR, CA, CO, PA, TX, FL USA....more info.
 hf-GR25170   $8.96 
 T-Rex 2 oz   Cutting Edge Solutions   T-Rex 2 oz 
Cutting Edge Solutions T-Rex 2 oz (CES3311)T-Rex - custom blended in Northern California, never dried or dehydrated! T-Rex is to be used in the first 1-3 weeks of the vegetative cycle. It is recommended to foliar spray once during the last week of vegetation cycle or during the first week of the flowering cycle in order to remain on the flowering sites through maturity. For slower ... — Ships from HF: OR, CA, CO, PA, TX, FL USA....more info.
 hf-CES3311   $8.98 
 Pure Blend Tea 1 qt   Botanicare   Pure Blend Tea 1 qt 
Botanicare Pure Blend Tea 1 qt (BCNSPBTQT)Pure Blend Tea™ combines the key elements of both Pure Blend Original Grow and Bloom, into one highly effective formula. Pure Blend Tea is enhanced and fortified with a premium blend of ultra-soluble humates, organic plant acids, trace minerals, vitamins, and select amino acids. Pure Blend Tea redefines what a complete organic plant b... — Ships from HF: OR, CA, CO, PA, TX, FL USA....more info.
 hf-BCNSPBTQT   $8.98 
 HAWAIIAN BUD 5-50-17 1.5LB      HAWAIIAN BUD 5-50-17 1.5LB 
Grow More Hawaiian Bud Specially formulated to supply phosphate and potash for late flowering cycle. Fortified with six trace elements plus Humic Acid and Norwegian kelp extract to help produce heavy weight flowers and buds. Correct nutrient ratio to mobilize essential oils and resins for aromatic flowering plants. Developed for use in soilless, hydroponic, organic soils, coco c... — Ships from SS: WA, CA, CO, MI, TN, PA, FL USA....more info.
 721610   $8.99 
 Grow More Hula Bloom 1.5 lb (12/Cs)   GrowMore   Grow More Hula Bloom 1.5 lb (12/Cs) 
Grow More Hula Bloom 0 - 50 - 30 Hula Bloom is formulated to help increase flowering quality and development of blooms, while helping to increase yields. Hula Bloom provides super phosphates and minerals that are rapidly absorbed in the flowering and final ripening stages of plant growth for a superior, top quality product. Recommended for plumerias, gingers, adenium, aquatic po... This item is sold individually. — Ships from SS: WA, CA, CO, MI, TN, PA, FL USA....more info.
 721617   $9.00 
 Magnum Quart (12/Cs)      Magnum Quart (12/Cs) 
Magnum Magnum is a concentrated Magnesium supplement with vitamin B1 for supplying extra Magnesium and Sulfur during the Bloom phase.... This item is sold individually. — Ships from SS: WA, CA, CO, MI, TN, PA, FL USA....more info.
 739210   $9.03 
Displaying 421 to 440 (of 4261 products) Result Pages: [<< Prev]  ... 21  22  23  24  25  26  27  28  29  30  31  32  33  34  35  36  37  38  39  40 ...  [Next >>] 
Ads
Social Bookmark
Amazon Ad

Customer Service

 

Shopping Help

 

My Account

 

Tools & Resources

BizRate Customer Certified (GOLD) Site - HorticultureSource.com -Specialty Gardening Supply Reviews at Bizrate ShopWiki Certified Store Official PayPal Seal
Merchant Services
Secured by RapidSSL 100% Satisfaction Guaranteed  Proud Hydro for Hunger Participant
Ads

UPSFedExUSPS OnTrac CalOver EstesR+LSouthEasternSAIA
Copyright © 2005 — 2017 Usisu, Inc.: Conditions of Use VISAMasterCardAmerican ExpressDiscoverDiners ClubJBCPayPal Money Order