10 Best Master Blend Hydroponic Fertilizer 4-18-38 for 2024

(Many of the links in this article redirect to a specific reviewed product. Your purchase of these products through affiliate links helps to generate commission for Storables.com, at no extra cost. Learn more)

Are you a hydroponic grower looking for the best fertilizer to boost your plants' growth? Look no further! In this article, we will discuss the top 10 master blend hydroponic fertilizers with a formula of 4-18-38 that are set to dominate the market in 2023. These fertilizers have been carefully selected based on their effectiveness, nutrient content, and positive customer reviews. Whether you are a seasoned gardener or a beginner, this comprehensive list will provide you with the highest-quality options to maximize your plant's potential.

Fox Farm Grow Big Hydro Liquid Concentrate

Check Latest Price

This product has a rating of A.*What does this rating mean?

Overall Score: 9/10

The Fox Farm FX14094 Grow Big Hydro Liquid Concentrate is a high-quality fertilizer that delivers a full spectrum of micro nutrients to enhance the growth, flowering, and fruiting characteristics of plants. It is perfect for hydroponic gardening and has set the standard for quality results. This concentrate comes in a 1 pint bottle, but when mixed with water, it can make up to 48 entire gallons of solution. The easy-to-follow instructions suggest mixing 2 teaspoons per gallon of water. Users have praised the effectiveness of this product, noting that it revived drooping plants, promoted larger and healthier foliage, and improved the taste of vegetables. However, some customers felt that the product was overpriced or were disappointed with the results of their specific batch. Overall, the Fox Farm FX14094 Grow Big Hydro Liquid Concentrate is a highly recommended fertilizer for achieving vibrant and thriving plants.

The Fox Farm FX14094 Grow Big Hydro Liquid Concentrate is a highly effective fertilizer for hydroponic gardening. It delivers excellent results by providing plants with the essential nutrients they need for optimal growth, flowering, and fruiting. Users have reported impressive outcomes, such as reviving dying plants, promoting abundant and healthy foliage, and enhancing the taste of vegetables. While some customers found the product to be relatively expensive or received a less satisfactory batch, it remains a top choice for achieving vibrant and thriving plants. If you’re looking to maximize the genetic potential of your plants and obtain outstanding results, this liquid concentrate is worth considering.

General Hydroponics MaxiGro, 2.2 lb

Check Latest Price

This product has a rating of A.*What does this rating mean?

Overall Score: 9/10

General Hydroponics MaxiGro is an exceptional hydroponic nutrient solution that provides optimal plant nutrition for healthy and robust growth. With its balanced formula, it ensures that plants receive all the essential nutrients they need to thrive in a hydroponic system. The nutrient solution dissolves quickly and completely in water, making it easy for plants to absorb. The concentrated formula offers excellent value for money, as a little goes a long way. General Hydroponics MaxiGro promotes vigorous vegetative growth, resulting in strong roots, lush foliage, and sturdy stems. It is suitable for a wide range of plants and is a popular choice among hydroponic gardeners.

General Hydroponics MaxiGro is a highly versatile and effective nutrient solution for hydroponic gardening. It provides optimal plant nutrition, promotes vigorous growth, and is easy to use. With its concentrated formula, a little goes a long way, offering great value for money. While some customers have reported issues with packaging and moisture, the overall performance of General Hydroponics MaxiGro is excellent. It is well-regarded by hydroponic gardeners, and the positive reviews attest to its effectiveness in producing healthy and thriving plants. Whether you’re a beginner or an experienced gardener, General Hydroponics MaxiGro is a reliable choice for achieving impressive hydroponic growth.

Masterblend Fertilizer 4-18-38

Check Latest Price

This product has a rating of A.*What does this rating mean?

Overall Score: 8/10

The Masterblend Fertilizer 4-18-38 is a hydroponic, tomato, and pepper fertilizer that comes in a 1-pound package. It is designed to provide essential nutrients to your plants and help them grow healthy and strong. With a customer rating of 4.6/5, it has received positive reviews for its effectiveness. The fertilizer is easy to use and can be applied to the whole garden or specific pots. It is especially praised for its ability to ripen tomatoes and prevent bottom end rot. The small size of the package may initially seem deceiving, but since only tiny amounts are used each time, it proves to be a good deal. If you are looking for a reliable fertilizer for your hydroponics or tomato plants, the Masterblend Fertilizer 4-18-38 is worth considering.

The Masterblend Fertilizer 4-18-38 is a trusted and reliable choice for hydroponics and tomato plant enthusiasts. With its effective formula, it helps in ripening tomatoes, preventing bottom end rot, and promoting overall plant health. The fertilizer has received positive reviews from customers who have witnessed the positive impact on their plants. Although the package size may seem small, the tiny amounts required for each use make it a cost-effective option. If you want to give your plants the essential nutrients they need for healthy and thriving growth, consider adding the Masterblend Fertilizer 4-18-38 to your gardening routine.

AeroGarden Liquid Nutrients (1 Liter)

Check Latest Price

This product has a rating of A.*What does this rating mean?

Overall Score: 8.5/10

The AeroGarden Liquid Nutrients is a plant fertilizer specifically designed for indoor gardening with the AeroGarden growing system. It contains a pH buffering system that promotes consistent and fast plant growth, making it ideal for houseplants and hydroponic gardening. The liquid format ensures that the nutrients are instantly available to the plants and improves the release of critical micronutrients. With a long shelf life, this 1-liter bottle provides over 100 AeroGarden feedings. It can be used with the Easy Feed Plant Food Nutrient Dispensers for precise measurements. Customers praise its effectiveness in promoting lush green growth and revitalizing plants. However, some users find the bottle design inconvenient. Overall, the AeroGarden Liquid Nutrients is a reliable and affordable choice for indoor gardeners.

The AeroGarden Liquid Nutrients provides indoor gardeners with an effective plant fertilizer for consistent and rapid growth. With its pH buffering system, it ensures optimal nutrient availability and improved micronutrient release. Users have reported impressive results, including vibrant and flourishing plants. The affordability and long shelf life make it a convenient choice for those using hydroponic systems or growing houseplants. However, the bottle design could be improved to prevent spillage. Overall, the AeroGarden Liquid Nutrients is a reliable solution for enhancing the health and vitality of indoor plants.

MASTERBLEND 4-18-38 Fertilizer Combo Kit Bulk (25 lb)

Check Latest Price

This product has a rating of A.*What does this rating mean?

Overall Score: 9/10

The MASTERBLEND 4-18-38 Complete Combo Kit is a game changer for both hydroponics and the Kratky method. This kit provides all the essential elements plants need for healthy growth, resulting in vigorous and lush greenery. With its 100% water solubility, the nutrients are easily absorbed by the plants. The balanced ratio of 4-18-38 ensures optimal nutrient uptake, giving your plants the perfect blend of nitrogen, phosphorus, and potassium. This versatile kit is suitable for both beginners and experienced growers, and its high-quality ingredients guarantee exceptional plant nutrition. Say goodbye to managing multiple nutrient solutions and embrace the convenience and effectiveness of the MASTERBLEND 4-18-38 Complete Combo Kit.

The MASTERBLEND 4-18-38 Complete Combo Kit is a must-have for anyone involved in hydroponics or the Kratky method. Its exceptional effectiveness and convenience make it a game changer in the world of plant nutrition. The balanced nutrient ratio and easy water solubility ensure optimal uptake and healthy plant growth. Whether you’re a beginner or an experienced grower, this kit provides all the essential elements your plants need. It offers remarkable results, saving you time and effort in managing multiple nutrient solutions. Embrace the simplicity and effectiveness of the MASTERBLEND 4-18-38 Complete Combo Kit, and elevate your growing experience to new heights.

MasterBlend 4-18-38 Tomato & Vegetable Fertilizer – 5lb Bulk

Check Latest Price

This product has a rating of A.*What does this rating mean?

Overall Score: 9/10

The MasterBlend 4-18-38 Tomato & Vegetable Fertilizer is a bulk fertilizer available in 1, 5, or 25 pounds quantity options. It is a world-renowned hydroponic vegetable fertilizer designed specifically for peppers and tomatoes. This super concentrated fertilizer is easy to use and 100% water soluble, containing all the trace minerals needed for optimal plant growth. Customers have praised its performance, stating that it significantly improves plant growth and is suitable for both hydroponic and potted plants. It is also considered a cost-effective alternative to similar products. However, some reviewers have mentioned slow shipping and smaller quantities than expected as drawbacks. Overall, the MasterBlend 4-18-38 Tomato & Vegetable Fertilizer is highly recommended for its effectiveness and value for money.

The MasterBlend 4-18-38 Tomato & Vegetable Fertilizer is a top choice for anyone looking to enhance the growth and performance of their tomato and vegetable plants. Its super concentrated formula and trace mineral content ensure optimal plant nutrition, resulting in rapid growth and abundant harvests. Whether you have a hydroponic system or potted garden plants, this fertilizer delivers outstanding results. Furthermore, its cost-effectiveness compared to other products in the market makes it a preferred choice among gardening enthusiasts. Although the shipping may take longer than expected, the quality of the product outweighs this minor inconvenience. Get ready to witness your tomato plants thrive and your vegetables flourish with the help of the MasterBlend 4-18-38 Tomato & Vegetable Fertilizer.

Greenway Biotech Tomato Fertilizer Powder

Check Latest Price

This product has a rating of A.*What does this rating mean?

Overall Score: 8/10

Greenway Biotech Tomato Fertilizer Powder 4-18-38 Plus Trace Minerals is a high-quality fertilizer formulated to provide the essential nutrients for healthy and strong tomato plants. Whether you're using hydroponics or soil, this water-soluble fertilizer is perfect for promoting root growth and aiding in the photosynthesis process. The blend of 4-18-38 plus trace minerals ensures that your tomatoes receive the right balance of nitrogen, phosphorous, and potassium. With no heavy metals or harmful materials, this fertilizer is safe to use and completely dissolves in water with no residue. Give your tomato plants the nutrition they need to thrive with Greenway Biotech Tomato Fertilizer!

Greenway Biotech Tomato Fertilizer Powder 4-18-38 Plus Trace Minerals is an excellent choice for tomato growers who want to provide their plants with the perfect blend of nutrients. Its water-soluble formula ensures that your plants receive the essential macro and micronutrients they need to grow healthy and tasty tomatoes. With its high-quality ingredients and safe composition, it promotes strong root growth and aids in the photosynthesis process. Although some customers reported weight discrepancies in the package, the overall feedback from users has been positive. If you’re looking for a reliable and effective tomato fertilizer, Greenway Biotech Tomato Fertilizer Powder is worth considering.

Calcium Nitrate 15.5-0-0 Fertilizer – 5 POUNDS

Check Latest Price

This product has a rating of A.*What does this rating mean?

Overall Score: 8/10

Boost the growth of your plants with Calcium Nitrate 15.5-0-0 Fertilizer Bulk Pricing. This agricultural-grade fertilizer is fully water soluble, making it easy for your plants to absorb. With its high nitrogen level, it promotes lush green vegetative growth. Additionally, calcium in the fertilizer increases plant resilience and prevents calcium deficiencies. Packed by PowerGrow Systems and made in the USA, this 5-pound bag is perfect for both hydroponic and soil-based gardening. Customers have praised its effectiveness for fixing low nitrogen issues, promoting greener and healthier plants, and providing a good source of calcium nitrate. While it may require slightly more product compared to other leading brands, the affordable price makes it a great choice for garden enthusiasts. Improve the health and productivity of your plants with Calcium Nitrate 15.5-0-0 Fertilizer Bulk Pricing!

Calcium Nitrate 15.5-0-0 Fertilizer Bulk Pricing is an excellent choice for garden enthusiasts who want to promote the growth and resilience of their plants. With its high nitrogen content and water solubility, it ensures easy uptake by your plants, resulting in lush green vegetative growth. The added calcium prevents deficiencies and enhances plant resilience. While it may require slightly more product compared to other leading brands, the affordable price makes it a great value for money. Customers have noticed significant improvements in plant health and growth after using this fertilizer. Overall, if you’re looking for a reliable fertilizer that provides a good source of calcium nitrate, Calcium Nitrate 15.5-0-0 Fertilizer Bulk Pricing is definitely worth considering!

Humboldt's Secret Base A & B Bundle

Check Latest Price

This product has a rating of A.*What does this rating mean?

Overall Score: 8.5/10

The Humboldt's Secret Base A & B Bundle is a world-class base nutrient system specially formulated to support the vegetative and flowering stages of plants. This liquid nutrient/fertilizer comes in a set of quarts and is designed for both outdoor and indoor plants. With a complete macronutrient profile, including Nitrogen, Phosphorus, Potassium, Calcium, Magnesium, and more, this nutrient system provides all the essential nutrients for rapidly growing plants. It is easy to use, compatible with all growing mediums, and suitable for all plant life. The commercial-grade and garden-friendly formula is 100% water soluble and pH-balanced for optimal plant health. With thousands of happy customers, this nutrient system is a favorite among growers. It may have a strong smell, but its effectiveness in promoting plant growth makes it a top choice.

The Humboldt’s Secret Base A & B Bundle is a game-changer for both home and commercial growers. With its complete macronutrient profile and easy-to-use two-part system, it provides everything your plants need for healthy growth. The formula is compatible with all growing mediums and suitable for all plant life. While it may have a strong smell and require additional products for optimal results, the effectiveness of this nutrient system is unparalleled. Thousands of satisfied customers have experienced rapid plant growth and impressive results. If you’re looking to maximize the potential of your plants, the Humboldt’s Secret Base A & B Bundle is a must-have.

Greenway Biotech Lettuce Fertilizer Powder

Check Latest Price

This product has a rating of A.*What does this rating mean?

Overall Score: 8.2/10

The Greenway Biotech 1 Pound Lettuce Fertilizer Powder is a premium fertilizer designed for healthy lettuce plants. With chelated micronutrients and 100% water soluble formula, this fertilizer ensures bright green and delicious lettuce. It improves soil quality and is suitable for both soil and hydroponics use. The eco-friendly formula is free of heavy metals. The fertilizer comes in a 1-pound size and has received positive reviews from customers. However, some customers have mentioned that the quantity of the product is small for the price. Overall, the Greenway Biotech Lettuce Fertilizer Powder is highly effective and boosts plant food growth.

The Greenway Biotech Lettuce Fertilizer Powder is a reliable and effective product for growing healthy lettuce plants. Its water soluble formula and premium ingredients ensure bright green and delicious lettuce. The fertilizer improves soil quality and is suitable for both soil and hydroponics use. While the quantity of the product may be small for some customers, the positive customer reviews indicate its effectiveness. The lack of clear directions may require additional research for optimal use. Overall, the Greenway Biotech Lettuce Fertilizer Powder is a recommended choice for lettuce growers who are looking for a high-quality and eco-friendly fertilizer.

Buyer's Guide: Master Blend Hydroponic Fertilizer 4-18-38

Looking to enhance your hydroponic garden yields and optimize nutrient delivery? Consider the Master Blend Hydroponic Fertilizer 4-18-38. With its balanced N-P-K ratio and specifically formulated blend, this fertilizer is designed to help your plants thrive. To ensure a seamless buying experience, we have put together this comprehensive buyer's guide. Read on to discover everything you need to know before purchasing!

Key Features

• Nutrient Ratios: The 4-18-38 N-P-K ratio in this fertilizer provides a balanced mix of essential elements. Nitrogen (N) promotes leaf growth, phosphorus (P) supports root and flower development, while potassium (K) enhances overall plant health.
• Water Soluble: Master Blend Hydroponic Fertilizer easily dissolves in water, ensuring efficient nutrient absorption by your plants.
• Versatility: This fertilizer is suitable for various crops, including vegetables, herbs, and flowering plants in a hydroponic system.
• Quality Ingredients: The fertilizer is made from premium ingredients, ensuring your plants obtain the necessary nutrients for vigorous growth.
• Cost-effective: The concentrated nature of this fertilizer allows for long-term use, providing exceptional value for money.

Usage and Application

Follow these guidelines to make the best use of Master Blend Hydroponic Fertilizer 4-18-38:

1. Dilution Ratio: Mix 1 ½ to 2.2 grams of the fertilizer per gallon of water. This ratio may vary depending on the specific plant's requirements, growth stage, and climate conditions.
2. Application Frequency: For optimal results, apply the diluted fertilizer solution every time you water your hydroponic plants. Consistency is key to maintaining nutrient balance.
3. pH Monitoring: Regularly check the pH level of your nutrient solution. Adjust the pH, if necessary, to ensure the plants can effectively absorb the nutrients.
4. Feeding Schedule: Develop a feeding schedule based on your plant's growth stage and specific requirements. Refer to the manufacturer's instructions for more detailed information.
5. System Maintenance: Regularly flush and clean your hydroponic system to prevent nutrient buildup and ensure proper nutrient uptake.

Benefits of Master Blend Hydroponic Fertilizer 4-18-38

By incorporating this fertilizer into your hydroponic setup, you can enjoy multiple benefits:

• Improved Plant Growth: The balanced nutrient profile enables healthy, vigorous plant growth, resulting in higher yields.
• Enhanced Root Development: The fertilizer's phosphorus content aids in promoting strong and extensive root systems, improving nutrient and water absorption.
• Optimized Flowering and Fruiting: The high phosphorus and potassium content support the development of vibrant flowers and fruits, enhancing the aesthetic appeal and quality of your harvest.
• Prevents Nutrient Deficiencies: Master Blend Hydroponic Fertilizer provides essential nutrients, reducing the risk of nutrient deficiencies and related problems such as stunted growth or yellowing leaves.
• Ease of Use: Thanks to its water-soluble formulation, this fertilizer is easy to mix and apply in hydroponic systems, ensuring hassle-free nutrient delivery.

Tips for Successful Hydroponic Fertilizer Application

Maximize the effectiveness of the Master Blend Hydroponic Fertilizer 4-18-38 with these insightful tips:

1. Plant Observation: Regularly monitor your plants for any signs of nutrient deficiencies or excesses. Adjust the fertilizer concentration or consult a plant expert if needed.
2. Use Quality Water: Ensure that the water you use for the nutrient solution is clean and free from contaminants. Poor water quality can negatively impact nutrient absorption and plant health.
3. Avoid Overfeeding: While providing adequate nutrients is crucial, be cautious not to overfeed your plants. Monitor their response and adjust the fertilizer accordingly.
4. Gradual Adjustment: When changing nutrient concentrations or trying new fertilizers, implement adjustments gradually to avoid shocking the plants and disrupting their growth cycles.
5. Follow Manufacturer Recommendations: Always refer to the manufacturer's instructions for specific application rates and guidelines, as these may vary depending on the fertilizer brand.