Comparison: Best Fish Fertilizer For Citrus Trees (Updated | Dec 1st)
If you’re growing citrus trees, you already know they’re a bit picky—sun, water, and the right nutrients are non-negotiable. But here’s a secret: not all fertilizers are created equal, and fish-based options are gaining fans for good reason. In this article, we’ll dive into the best fish fertilizers for citrus trees, comparing smell, nutrient content, ease of use, and real results from gardeners like you. No fluff, just honest insights to help your lemons, oranges, and limes thrive naturally. Let’s find the perfect feed for your citrus success.
- Best for bulk organic boost: Down To Earth All Natural Fertilizers Organic Citrus Mix – Plant Food for Lemons
- Best for compact trial pack: Down To Earth All Natural Fertilizers Organic Citrus Mix – Plant Food for Lemons
- Best for super concentrated liquid: Farmer’s Secret Citrus Tree Booster Fertilizer (8oz) – Super Concentrated – Formulated for All Citrus Trees Including All Types of Lemons
- Best for micronutrient harvest: GARDENWISE Professional Citrus Fertilizer + Vital Micronutrients; Perfect Balanced NPK for All Citrus; for Indoor and Outdoor Plants; Orange
- Best for root zone spikes: Miracle-Gro Fruit & Citrus Plant Food Spikes
- Best for runoff-free granules: Jobe’s Organics Granular Garden Fertilizer
- Best for high-nitrogen liquid: Citrus Tree Fertilizer – Orange
- Best for large concentrate bottle: Farmer’s Secret Citrus Tree Booster Fertilizer (32oz) – Super Concentrated – Formulated for All Citrus Trees Including All Types of Lemons
- Best for all-in-one granules: GARDENWISE Professional Citrus Fertilizer + Vital Micronutrients; Perfect Balanced NPK for All Citrus; for Indoor and Outdoor Plants; Orange
- Best for calcium rich organic: Espoma Organic Citrus-Tone 5-2-6 Natural & Organic Fertilizer and Plant Food for All Citrus
Product Comparison: Best Fish Fertilizer For Citrus Trees
Down To Earth All Natural Fertilizers Organic Citrus Mix – Plant Food for Lemons, Limes, Oranges and Avocados 6-3-3, 5 lb
- Down To Earth Citrus Mix is a five pound box of all natural fertilizer with 6-3-3 formula and is listed by the Organic Materials Review Institute (OMRI) for use in organic production
- Formulated with primary and secondary plant nutrients like calcium, sulfur, zinc and iron, plus selected micronutrients
- It supplies the proper ration of nitrogen, phosphorus and potassium that helps promote lush new growth, abundant green foliage, fragrant blossoms and bountiful fruit
- An excellent option for citrus trees of all kinds and may also be used to feed other fruit trees, vines and ornamentals for equally enjoyable results
- Ingredients: feather meal, fish bone meal, alfalfa meal, greensand, langbeinite, basalt, sulfate of potash, zinc sulfate and kelp meal. DOES NOT EXPIRE, if kept in a cool, dry place
Down To Earth All Natural Fertilizers Organic Citrus Mix – Plant Food for Lemons, Limes, Oranges and Avocados 6-3-3, 1 lb
- Balanced Organic Nutrition – Supplies a 6‑3‑3 NPK ratio along with calcium, sulfur, iron, and zinc to foster healthy foliage, flowering, and fruit.
- Crafted from Premium Natural Sources – Includes feather meal, fish bone meal, alfalfa meal, langbeinite, basalt, potassium sulfate, zinc sulfate, kelp, and humic acids derived from leonardite for enhanced nutrient uptake.
- OMRI-Listed for Organic Use – Certified for organic gardening, ensuring no synthetic additives—a great match for organic or sustainable gardens.
- Mini Box, Maximum Flexibility – Compact 1 lb packaging is ideal for small-scale use, raised beds, containers, or trial applications before committing to larger sizes.
- Easy Application Schedule – Apply 3–4 times a year—late winter, late spring, and early fall—by spreading around the drip line or mixing in fresh soil at planting or repotting.
Farmer’s Secret Citrus Tree Booster Fertilizer (8oz) – Super Concentrated – Formulated for All Citrus Trees Including All Types of Lemons, Limes, and Oranges – Outdoor and Indoor/Container Trees
- Let our professionally formulated plant food help your citrus tree grow healthy, strong AND abundantly producing
- Super, super concentrated – A little goes a LONG way
- Dilute one teaspoon of product into one gallon of water and apply weekly along the drip line. For trees in their first season, use one teaspoon per week. For mature trees, use up to two teaspoons per week.
- For indoor / container trees, cut dosage in half or apply every other week
- Farmer’s Secret brings the same scientifically backed formula development process farmers get to YOUR garden… get in on the secret!
- Bottled with pride in Kentucky!
- In addition to citrus trees, this formula also works great for avocado trees
GARDENWISE Professional Citrus Fertilizer + Vital Micronutrients; Perfect Balanced NPK for All Citrus; for Indoor and Outdoor Plants; Orange, Lime, Avocado and Lemon Tree Fertilizer (1/2 Quart)
- 🍋 EXPLOSIVE HARVEST: GardenWise ignites a remarkable yield boost. Its scientific blend, featuring 6% nitrogen for growth, 4% phosphorus for flowering, and 6% potassium for fruit quality, culminates in an abundance of flavorful, aromatic fruits. This is more than growth; it’s a nutrient-powered revolution in your citrus yield.
- ✨ MICRONUTRIENT MIRACLE: Magnesium catalyzes chlorophyll production for greener leaves, zinc strengthens plant defenses, copper is essential for growth and metabolism, iron ensures rich, vibrant foliage, and boron aids in flower and fruit development. This scientific blend is meticulously designed to nourish your citrus trees at a cellular level, ensuring that each piece of your fruits is a symphony of sweet, tasty flavors, wrapped in an irresistible aroma.
- 💰 SMART SAVINGS, SUPERIOR RESULTS: Our all-in-one formula caters to every citrus variety, streamlining your garden care and cutting down on the need for multiple products. Just a handful of applications per year deliver sustained nourishment for up to two months, making each purchase a long-lasting investment in your garden’s health. Maximum impact, minimal expense.
- 👌 EFFORTLESS MASTERY FOR ALL: Whether you’re a seasoned gardener or a first-time plant enthusiast, our fertilizer makes it incredibly easy to achieve spectacular results. Just sprinkle it around your citrus trees, water, and let GardenWise do the rest. No complex procedures, no fear of mistakes – just a straightforward path to a thriving citrus garden.
- 🕗 YEAR-ROUND NOURISHMENT: Our specially coated granules are designed to melt with each watering, gradually releasing vital nutrients. This ensures a steady, continuous supply of nourishment, essential for your trees to regain strength post-harvest and maintain exceptional fruiting.
Miracle-Gro Fruit & Citrus Plant Food Spikes
- Promotes more fruit and lush foliage (vs unfed)
- Contains natural ingredients
- Feed once per season in Spring and Fall
- Also great for use on palm trees
- Easy-to-use spikes release nutrients directly into the root zone to help promote strong fruit, citrus, and palm trees
Jobe’s Organics Granular Garden Fertilizer, Easy Plant Care Fertilizer for Fruit and Citrus Plants and Trees, 4 lbs Bag
- Package contains 4 Pounds organic fruit and citrus fertilizer grains and is produced to avoid wasteful runoff, mess, hazards and smells
- Plant fertilizer is formulated with a 3-5-5 NPK to provide fruit and citrus plants the nutrients they need for a high yield and vibrant foliage
- Jobe’s organic fertilizer contains no synthetic chemicals and are OMRI listed for organic gardening by the USDA
- Application is simple and should be done every 4-8 weeks or as needed during the growing season
- Jobe’s organic fertilizer is easily measured to provide the right amount of nutrients for fruit and citrus plants without risk of over fertilizing
Citrus Tree Fertilizer – Orange, Lemon, Lime, Mango, Avocado – Citrus Fertilizer for Tropical Fruit Trees to Grow More Fruit – Garden-Growing Miracle Nutrients – 1 Qt / 32 fl oz / 946 mL
- Powerful NPK Formula for Lush Growth: Our fertilizer’s 20-3-19 formula delivers the ideal balance of Nitrogen fertilizer, Phosphorus fertilizer and Potassium fertilizer, giving your citrus trees everything they need to thrive. With added micronutrients, it tackles nutrient deficiencies for healthier, fruit-bearing trees!
- Infused with Essential Micronutrients: This fertilizer doesn’t just cover the basics, it’s enriched with a special micronutrient blend. These micronutrients fix common issues like yellowing leaves and poor fruit production. Think of them as a vitamin boost for your trees, ensuring they get the precise plant nutrients needed for steady growth and abundant harvests.
- Fast-Absorbing, Concentrated Liquid: Our concentrated liquid formula goes straight to the roots for quick absorption, meaning your citrus tree fertilizer get a fast-acting nutrient boost. Mix it with water for an easy, effective way to deliver vital nutrients directly to your plants’ root systems.
- Tailored for Citrus and Tropical Trees: Not all plants need the same care. Our fertilizer is crafted specifically for citrus and tropical fruit trees, like lemons, limes, mangoes, and avocados. Its unique nutrient blend addresses the exact needs of these trees, whether they’re potted indoors or growing outdoors, ensuring optimal fruit production year-round.
- Our Story: Ray DeBruhl, an agronomist and horticulturalist, founded EZ-gro after developing the first scientific agronomic program and patented greenhouse system that revolutionized an industry. His groundbreaking work in fertilizers and water quality had a global impact. With referrals from a Fortune 500 company, he sold his systems in six countries. His expertise led to EZ-gro’s consumer hydroponic products, with flagship fertilizers that simplify growing and ensure success for home gardeners.
Farmer’s Secret Citrus Tree Booster Fertilizer (32oz) – Super Concentrated – Formulated for All Citrus Trees Including All Types of Lemons, Limes, and Oranges – Outdoor and Indoor/Container Trees
- Let our professionally formulated plant food help your citrus tree grow healthy, strong AND abundantly producing
- Super, super concentrated – A little goes a LONG way
- Dilute one teaspoon of product into one gallon of water and apply weekly along the drip line. For trees in their first season, use one teaspoon per week. For mature trees, use up to two teaspoons per week.
- For indoor / container trees, cut dosage in half or apply every other week
- Farmer’s Secret brings the same scientifically backed formula development process farmers get to YOUR garden… get in on the secret!
- Bottled with pride in Kentucky!
- In addition to citrus trees, this formula also works great for avocado trees
GARDENWISE Professional Citrus Fertilizer + Vital Micronutrients; Perfect Balanced NPK for All Citrus; for Indoor and Outdoor Plants; Orange, Lime, Avocado and Lemon Tree Fertilizer (1 Quart)
- 🍋 EXPLOSIVE HARVEST: GardenWise ignites a remarkable yield boost. Its scientific blend, featuring 6% nitrogen for growth, 4% phosphorus for flowering, and 6% potassium for fruit quality, culminates in an abundance of flavorful, aromatic fruits. This is more than growth; it’s a nutrient-powered revolution in your citrus yield.
- ✨ MICRONUTRIENT MIRACLE: Magnesium catalyzes chlorophyll production for greener leaves, zinc strengthens plant defenses, copper is essential for growth and metabolism, iron ensures rich, vibrant foliage, and boron aids in flower and fruit development. This scientific blend is meticulously designed to nourish your citrus trees at a cellular level, ensuring that each piece of your fruits is a symphony of sweet, tasty flavors, wrapped in an irresistible aroma.
- 💰 SMART SAVINGS, SUPERIOR RESULTS: Our all-in-one formula caters to every citrus variety, streamlining your garden care and cutting down on the need for multiple products. Just a handful of applications per year deliver sustained nourishment for up to two months, making each purchase a long-lasting investment in your garden’s health. Maximum impact, minimal expense.
- 👌 EFFORTLESS MASTERY FOR ALL: Whether you’re a seasoned gardener or a first-time plant enthusiast, our fertilizer makes it incredibly easy to achieve spectacular results. Just sprinkle it around your citrus trees, water, and let GardenWise do the rest. No complex procedures, no fear of mistakes – just a straightforward path to a thriving citrus garden.
- 🕗 YEAR-ROUND NOURISHMENT: Our specially coated granules are designed to melt with each watering, gradually releasing vital nutrients. This ensures a steady, continuous supply of nourishment, essential for your trees to regain strength post-harvest and maintain exceptional fruiting.
Espoma Organic Citrus-Tone 5-2-6 Natural & Organic Fertilizer and Plant Food for All Citrus, Fruit, Nut & Avocado Trees; 4 lb. Bag. Promotes Vigorous Growth & Abundant Fruit
- FOR USE ON: Use Citrus-tone organic fertilizer for all citrus trees, including lemon, lime, orange, Meyer Lemon Trees as well as for avocado & nut trees
- CONTAINS: Citrus-tone is a rich blend of the finest natural & organic ingredients enhanced with our exclusive Bio-tone formula; 5-2-6 Fertilizer analysis with 5% Calcium. Citrus-tone is environmentally Safe – No sludges or toxic ingredients
- WHEN / HOW TO USE: Best to use Citrus-tone fertilizer late winter pre-bloom, spring post bloom and Fall. Apply to the soil around the drip line of the tree and then water thoroughly. Citrus-tone is ready to use and requires no mixing
- FOR ORGANIC GARDENING: Citrus-tone is approved for organic gardening; It is a registered Organic Input Material meaning it meets all requirements for organic production
- MADE IN THE USA: Product of the Espoma Company. The leader in natural organics since 1929
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
Buying Guide
FAQs
What should I look for when choosing a fish‑based fertilizer for citrus trees?
Look for a product that lists fish meal or fish bone meal as a primary ingredient, as these provide a quick source of nitrogen and micronutrients. Verify that the NPK ratio is balanced for citrus, typically around 6‑3‑3, and that the formula includes calcium, magnesium, and iron to support fruit development. Organic certification such as OMRI‑listed status ensures the fertilizer meets organic standards and avoids synthetic additives.
How does Down To Earth Organic Citrus Mix compare to Farmer’s Secret Citrus Tree Booster?
Down To Earth offers a 5‑lb bag with a 6‑3‑3 NPK ratio and a blend of feather meal, fish bone meal, alfalfa, and kelp, making it a well‑rounded organic option for larger gardens. Farmer’s Secret is a super‑concentrated liquid that you dilute, delivering a higher nitrogen boost per teaspoon but requiring careful measurement for each application. The former provides a slow‑release granular feed, while the latter offers rapid uptake through the root zone.
Is a liquid fish fertilizer more effective than a granular one for citrus trees?
Liquid formulas, like the EZ‑gro citrus fertilizer, are absorbed quickly and can correct deficiencies within days, which is useful for stressed or newly planted trees. Granular products, such as GardenWise or Espoma Citrus‑Tone, release nutrients slowly over weeks, supporting steady growth and reducing the risk of over‑fertilizing. Your choice should depend on whether you need an immediate boost or a long‑term feeding schedule.
Can I use a fish‑based fertilizer on indoor or container citrus trees?
Yes, but you should halve the recommended dosage and apply it less frequently to avoid salt buildup in confined soil volumes. Liquid concentrates are especially convenient for containers because they mix easily with watering water, while granular options can be lightly worked into the potting mix. Always monitor leaf color and soil moisture to adjust feeding rates.
What value does a multi‑nutrient blend provide compared to a simple fish meal fertilizer?
A blend that combines fish meal with secondary nutrients like zinc, copper, and boron (found in GardenWise and Espoma) addresses micronutrient deficiencies that can limit fruit set and flavor. Simple fish meal fertilizers supply mainly nitrogen and some phosphorus, which supports vegetative growth but may not fully support fruit development. Investing in a comprehensive blend often yields better fruit quality and reduces the need for supplemental micronutrient applications.
How often should I apply fish‑based fertilizer to mature citrus trees?
For mature trees, most granular fish‑based products recommend 3–4 applications per year—late winter, early spring, mid‑summer, and fall—spreading the fertilizer around the drip line. Liquid concentrates can be applied weekly at a reduced strength during the growing season, but it’s important to follow label instructions to avoid over‑feeding. Consistent, moderate feeding promotes steady growth without causing leaf burn.
Is there a cost‑effective option for small‑scale growers who want a fish fertilizer?
The 1‑lb Down To Earth Citrus Mix offers a low‑commitment entry point, allowing you to test the product before buying larger quantities. Farmer’s Secret’s concentrated liquid provides a high nutrient density, so a small bottle can treat many trees over the season, delivering good value per ounce of active ingredient. Compare unit prices (price per pound or per ounce) and factor in application frequency to determine the most economical choice for your garden size.