Neptune’s Harvest Organic Tomato & Vegetable Plant Fertilizer (2-4-2) - Liquid Plant Food w/Fresh Fish, Seaweed, Molasses, Yucca Extract, & Humic Acids - for Vegetable Garden (Gallon)
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Availability:
In Stock.
Arrives
Saturday, Oct 24
Size: Gallon
Features
- Derived for Maximum Growth: Neptunes Harvest Natural Tomato & Vegetable Organic Fertilizer is a liquid plant food formulated for the critical "vegging" stage of tomatoes, vegetables, and houseplants; this liquid fertilizer enhances plant health, promotes vigorous foliage, and develops strong stems and roots; this fertilizer increases yield, supports healthy deep roots, and helps with big vegetation, healthier crops, especially for tomatoes and vegetables and is safe for kids and pets
- Power of Natural Ingredients: This organic plant fertilizer combines fish, seaweed, molasses, humate, yucca extract, biological microbes, and liquid calcium to deliver essential nutrients like nitrogen, phosphorus, and potassium; it boosts root health, increases yield, enhances soil quality, and strengthens plants against disease, drought, and temperature stress; ideal for both indoor and outdoor plants, it promotes healthy growth in vegetable gardens, potted plants, and hemp crops
- How to Use: This liquid fertilizer is easy to apply by mixing 1 oz. per gallon of water for outdoor plants and 1 tablespoon per gallon for houseplants; feed every 1-2 weeks for outdoor plants and weekly for houseplants; It can be used as both a foliar and root feed, making it versatile for vegetable gardens and potted plants; this organic fertilizer helps boost plant health and enhances the flavor of fruits, veggies, and herbs
- Supports Soil Performance: Rich in essential minerals, this fertilizer strengthens root zones and improves nutrient uptake; it boosts soil biology, sequesters carbon, builds organic matter, and helps soil drain yet retain moisture; regular use in vegetable gardens and potted plants helps develop healthy roots and improve soil structure; this organic fertilizer is perfect for tomatoes and vegetables, promoting better growth and higher yields
- Package Contents: Neptunes Harvest Organic Tomato & Vegetable Plant Fertilizer (2-4-2)
Brand: Neptune's Harvest
Item Weight: 4.08 kg
Item Form: Liquid
Liquid Volume: 1 gallons
Specific Uses For Product: Soil Conditioning
Brand: Neptune's Harvest
Model Number: N17 TV191
Global Trade Identification Number: 99
Manufacturer: Neptune's Harvest
Number of Items: 1
UPC: 081435740099 081435540095
Unit Count: 128 Fluid Ounces
Included Components: Neptune's Harvest Tomato & Veg Fertilizer 2-4-2, 1 Gallon
Item Type Name: Neptune's Harvest Tomato & Veg Fertilizer 2-4-2, 1 Gallon
Part Number: TV 191
Warranty Description: Warranty
Item Form: Liquid
Specific Uses For Product: Soil Conditioning
Application Method: Dilute in water and apply to soil or foliage
Coverage: Full
Target Species: Vegetables, Houseplants
Item Weight: 4.08 kg
Liquid Volume: 1 gallons
Mixing Ratio: For house plants 1 tablespoon per gallon of water. For outdoor plants 1/8 cup per gallon of water.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Oct 24
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Size: Gallon
Wow--- this works! Ok- the smell is not that bad... not a chemical smell because it is REAL, not synthetic. We use this on all of our plants (even in the greenhouse where the smell could get bad--- just slight smell for 1/2 a day). We are all organic, and this is what has helped our plants thrive (peppers, dill, basil, tomatoes, watermelon, corn, beans, squash, pumpkins, daisy flowers, sedum, begonia, inpatients, fuchsia, chives, oregano, thyme, lettuce, strawberries... I can go on and on). We have a short and intense growing season in South Dakota--- this has given us peppers in June vs. late July/August. Thank you for using the methods from the olden days--- organic!
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Reviewed in the United States on July 18, 2026 by Customer SD
Size: Quart
I used in my garden this year, and couldn't be happier. compared to previous fertilizers, this one stands out. My tomatoes (and other vegetables) look amazing and have produced a great crop (so far). I still have tons of blooms and my plants are truly healthy! I will be using more of this!
Reviewed in the United States on July 30, 2026 by Sam Jenkins
Size: Quart
Unearth the divine power of Neptune's Harvest Tomato & Veg Fertilizer 2-4-2, the 36-ounce elixir that's sure to have your tomatoes and veggies thriving like never before! With its heavenly blend of nutrients, this fertilizer is the secret to unlocking a bountiful, celestial harvest right in your backyard. Let's dig into the divine details of this garden ambrosia. Pros: Nutrient nectar: This 2-4-2 blend of nitrogen, phosphorus, and potassium ensures that your tomatoes, veggies, and other plants receive the perfect balance of essential nutrients for optimal growth. Blossom booster: Neptune's Harvest Tomato & Veg Fertilizer promotes strong root development, abundant blossoms, and increased fruit production, making your garden the envy of the neighborhood. Easy application: The liquid formula allows for fuss-free mixing and application, letting you provide your plants with the nutrients they crave without any hassle. Bountiful blessings: A little goes a long way with this 36-ounce bottle, providing your garden with numerous applications of nutrient-rich sustenance. Cons: Pricey potion: Some users might find the cost of this fertilizer to be on the higher side. However, the impressive results and bountiful harvest it delivers make it a worthy investment for any dedicated gardener. Odor offering: Due to its organic, nutrient-rich composition, this fertilizer may have a strong, fishy odor. But fear not, for the smell is a small sacrifice for the garden glory that awaits! In conclusion, Neptune's Harvest Tomato & Veg Fertilizer 2-4-2 is the garden grub of the gods, providing your fruits and veggies with a celestial feast that promotes optimal growth and an abundant harvest. Embrace the divine power of this nutrient-rich elixir, and watch your garden transform into a bountiful haven worthy of the gods themselves!
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Reviewed in the United States on March 17, 2023 by Mike S.
Size: Quart
This item has a screw top. The entire bottle arrived in sealed plastic with the fertilizer liquid leaking out of the bottle. Amazon or seller should do a better job making sure this is properly sealed so as to not waste the fertilizer and leak.
Reviewed in the United States on July 27, 2026 by J F
Size: Gallon
Best for my tomato’s , I use on my house plants as well, better than granular
Reviewed in the United States on July 31, 2026 by scott J
Size: Pint
The difference after use is substantial. I used it for peppers, tomatoes, watermelon, and cucumbers. Plants started to flower and look healthy. Yeah it has an odor but it’s gone after the night (not going to rate bad for it 😅).
Reviewed in the United States on July 14, 2026 by SmartShopper
Size: Gallon
For the last 4 years, I growing quite a few veggies, greens, and herbs in my basement under LED lighting. Previous to trying the fertilizer, I was using a quality (and expensive) chemical fertilizer for my tomatoes and peppers. As far as I was concerned, all of my plants looked good and were producing well. I was told once that if "It's not broke, don't fix it." I have always questioned, "If you don't know it's broke, how do you know you should fix it?" I read an article about using chemical fertilizers vs. natural for herb, that mentioned chemical fertilizer inhibit the ability of herbs to produce the essential oils necessary for scent and flavor. So, I decided to try the fish and seaweed fertilizer for my herbs in this brand at 7.5 ml. per gallon. Within a month, of using this fertilizer, I couldn't believe the difference in my herbs. When I brushed my hand over my lemon thyme, my hand smelled like lemon!! The scent of all of my herbs was so much more potent than it had ever been. Mind you, most of my pepper and tomato plants are 1 1/2 to 2 1/2 years old. I had noticed a build up of minerals on the tops of the pots and also in the pot bottoms, and I generally flush the soil in every pot at least 3-4 times a year. What I found out is that chemical fertilizers can leave a buildup in the soil. So, I decided to try this fertilizer for my veggie greens, tomatoes and peppers. I have been using this fertilizer for 3-4 weeks, but I am already seeing a huge difference in my plants. All of my plants are developing more lush foliage. Once the fruiting plants start developing flowers, I switch over to the Neptune's Harvest Rose and Flowering Formula which helps them to develop more flowers and larger fruits. As I clean the chemical buildup from the pots and pot bottoms, I am not seeing this buildup again. When I used to flush the soil in the pots, the water that drained out literally looked like a dark coffee color. This isn't happening now either. It will take a bit of time for me to get the chemical buildup flushed from all my plants, but I am looking forward to having healthy and happy tomatoes and peppers for a few more years. Pepper plants, if properly cared for can live and produce for over 5 years. My bush cherry tomatoes have the same life expectancy. I believe this fertilizer will help all of them to live and produce for a few more years. When viewing the pictures, keep in mind all of these plants have been grown indoors for at least 2 years. Some of the pepper plants have been cut back to promote new growth. I hope this review was helpful for you. I will update my review if my opinion changes.
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Reviewed in the United States on April 14, 2022 by Judy L.
Size: Gallon
Great for your health of your plants
Reviewed in the United States on October 1, 2026 by Roxanne D.