16 Best Organic Indoor Plant Fertilizers for Thriving Greens

Discover the best organic indoor plant fertilizer to nourish your greenery naturally, ensuring vibrant growth and a flourishing home environment.
BrandMy RatingPrice
Liqui-Dirt
Top Economical Pick
9.2/10
Liqui-Dirt
Top Economical Pick
9.2/10
Flourish
Best for Indoor Growing
8.6/10
Organic Plant Magic
Best for Easy Application
9.0/10
Grow Queen
8.8/10

Best Organic Indoor Plant Fertilizer

Are your indoor plants begging for a boost of nourishment? Discover the best organic indoor plant fertilizers that can transform your leafy companions into thriving, vibrant displays of life. With the right blend of natural nutrients, you can cultivate an oasis of greenery that not only enhances your home but also uplifts your spirit.

Top Economical Pick: Liqui-Dirt

Naturally Organic Plant Food Fertilizer – All-Purpose for Indoor Houseplants, Rare Aroids, Flowers, Outdoor Vegetables & Herbs – Enriched with Microbes & Nutrients – Makes 50 Gallons
Highlights
Economical and long-lasting
Nutrient-rich formula
Safe for pets and plants

Our team is excited to spotlight the Best Organic Indoor Plant Fertilizer.

We crowned it as our Top Economical Pick for its astonishing ability to create 50 gallons of fertilizer from just a single concentrate!

That's over 6,400 applications—talk about a money-saver!

This all-purpose, nutrient-rich formula is perfect for everything from houseplants to herbs and even hydroponics!

With 18 vital nutrients, including mycorrhizae and rhizobacteria, your plants will flourish like never before.

Plus, it’s 100% safe for your furry friends and the environment!

Just mix it with water, and you'll be on your way to a lush, vibrant garden.

Embrace sustainable gardening with this powerhouse fertilizer!

Be sure to also check out the best organic bloom fertilizer for more options! Also, here is the price history so you know exactly when to buy!

Price history for Liqui-Dirt on Amazon

Best for Indoor Growing: Flourish Plant Food

Flourish Plant Organic All-Purpose Plant Food 3-3-2 Fertilizer for Indoor Plants - CDFA Certified, Easy Application, 3-3-2 NPK, Eco-Friendly, EA 1.69 fl oz USA Made
Highlights
Effective plant growth
Eco-friendly ingredients
Certified organic

We’ve dubbed Flourish’s All-purpose House Plant Food the “Best for Indoor Growing”, and for good reason!

This fertilizer is specifically formulated for your beloved houseplants, ensuring they thrive with its impressive 3-3-2 NPK ratio.

We love that it’s CDFA certified, so you can nurture your plants guilt-free, knowing you’re supporting organic practices.

While the bottle may be small, it provides 20-30 nutrient-rich servings.

Just a capful mixed with water makes for an effortless application (just watch out for that slight mess!).

Plus, it’s eco-friendly, made from food waste!

Overall, Flourish gives your plants the boost they deserve!

Be sure to also check out the best organic fertilizer for raspberries for more options! Also, here is the price history so you know exactly when to buy!

Price history for Flourish Plant Food on Amazon

Best for Easy Application: Organic Plant Magic

Organic Plant Magic - Truly Organic™ Easy to Use Soluble Plant Food Shaker: All-Purpose Fertilizer Concentrate for All Flower Vegetable Herb Fruit Tree Indoor Garden & House Plants [One 3 oz Shaker]
Highlights
Easy to use
Organic ingredients
Long-lasting results

We’re thrilled to present our top pick for “Best for Easy Application”—the Organic Plant Magic Shaker Fertilizer!

This little powerhouse is designed for the effortless plant parent.

With its new shaker bottle design, you can simply sprinkle it onto the soil without any messy mixing.

Just water, and you’re golden!

We love that it’s all-purpose, perfect for everything from houseplants to outdoor containers.

A little goes a long way, providing fast, long-lasting results.

While the initial odor might catch you off guard, the amazing growth and vibrant colors make it totally worth it.

Say hello to spectacular plants! 🌱

Be sure to also check out the best organic liquid fertilizer for vegetables for more options! Also, here is the price history so you know exactly when to buy!

Price history for Organic Plant Magic on Amazon

Grow Queen Plant Food

All-in-One Complete Organic Plant Food, Indoor Plant Food for Houseplants, Organic Fertilizer for Vegetable Gardens, 7 Formulated Single Servings Feeds 14 gal Fast and Slow Release
Highlights
Promotes rapid root growth
Completely organic formula
Easy application with scoop

When it comes to nurturing our beloved indoor plants, we absolutely love the Grow Queen Organic Indoor Plant Fertilizer.

This product stands out with its versatile applications – it's not just for potted plants; it doubles as a robust microbe inoculant and even a starter for garden beds!

We appreciate its organic formula, which means our plants thrive without any chemical nasties.

There's nothing quite like watching our plants bounce back from transplant shock, thanks to the rapid root growth this fertilizer promotes.

The easy application with a scoop adds convenience, even if we need to mix it into the soil.

Do keep an eye out for potential mold growth, but with proper care, our green friends will flourish!

Be sure to also check out the best railing planters for more options! Also, here is the price history so you know exactly when to buy!

Price history for Grow Queen Plant Food on Amazon

Espoma

Espoma Organic 8 Ounce Concentrated Indoor! Plant Food - Indoor Plant Fertilizer for Large & Small Plants Like Pothos, Fiddle Leaf Fig, Monstera, Snake & Palms
Highlights
Organic and safe
Easy to use
Fast visible results

We think Espoma's Organic Indoor Plant Fertilizer is a fantastic choice for plant lovers looking to nourish their greens safely.

This liquid fertilizer delivers essential nutrients that help your indoor plants thrive.

The application is a breeze—just mix ½ cap with water, and you’re good to go!

Expect fast results—your plants will grow larger and more vibrant in no time.

However, be mindful of its strong odor, which can be a bit off-putting.

With regular use every 2-4 weeks, you’ll foster a flourishing indoor jungle that’s safe for kids and pets.

Give it a try!

Be sure to also check out the best acid fertilizer for more options! Also, here is the price history so you know exactly when to buy!

Price history for Espoma on Amazon

Back to the Roots Organic Indoor Plant Fertilizer

Back to the Roots Natural & Organic Indoor Plant Food (16oz Value Size - 95 Feeds!), Great for Houseplants, Low Odor, Vegan, Easy to Apply Liquid Formula
Highlights
100% Plant Based
Effective for Growth
Satisfaction Guarantee

When it comes to nurturing our indoor plants, we’ve found a gem in Back to the Roots Organic Indoor Plant Fertilizer.

This 100% plant and mineral-based formula offers peace of mind with its non-toxic, no synthetic chemicals approach.

The concentrated 16 oz bottle delivers a whopping 95 applications—talk about value!

We love how it promotes stronger roots and bigger plants without the overpowering odor.

Plus, the satisfaction guarantee means you can try it risk-free.

Just remember to store it properly to avoid any mold issues.

Let's not forget the heartwarming #GROWONEGIVEONE initiative!

Be sure to also check out the best ixora fertilizer for more options! Also, here is the price history so you know exactly when to buy!

Price history for Back to the Roots on Amazon

The Grow Co Plant Food

Organic Indoor Plant Food - All-Purpose Liquid Fertilizer - Best for Live Houseplants Indoors + Common Home Outdoor Plants in Pots (8 oz)
Highlights
Organic ingredients
Essential nutrients
Easy to use

If you're looking to give your indoor plants a boost, we've found a gem: the organic indoor plant fertilizer from The Grow Co.

This wonderfully organic blend is crafted with premium ingredients that are gentle yet effective, ensuring your leafy friends thrive.

It's packed with essential nutrients and is incredibly easy to use—just dilute and apply!

We love how versatile it is, working wonders for a wide range of houseplants from fiddle leaf figs to snake plants.

Just remember, while it's a powerhouse for growth, it may need some careful storage to avoid mold.

In short, it's a solid choice for any indoor gardener!

Be sure to also check out the best hanging basket fertilizer for more options! Also, here is the price history so you know exactly when to buy!

Price history for The Grow Co Plant Food on Amazon

Smart Grower Organic Plant Food

Organic Plant Food with Beneficial Microbes, Fast Acting Vegan Fertilizer for Vegetable Garden, Outdoor & Indoor Plant Fertilizer, Miracle Growth for Plants Concentrated Value 125GR Makes 30 gallons
Highlights
Organic and vegan
Fast-acting results
Suitable for all plants

We’re excited to share our thoughts on the Smart Grower Plant Power Up Organic Fertilizer!

This isn’t just any plant food; it’s a powerhouse of organic goodness that’ll have your plants thriving in no time.

Packed with beneficial bacteria and essential nutrients, it's safe for humans and insects alike—so no toxic vibes here!

With its easy-to-use scoop and versatile application for both indoor and outdoor plants, we found it refreshingly straightforward.

Just be mindful of the dark color in the water and follow the application guidance carefully.

Get ready for healthier, happier plants that glow with vitality!

Be sure to also check out the best organic bloom booster for more options! Also, here is the price history so you know exactly when to buy!

Price history for Smart Grower Organic Plant Food on Amazon

ARBER Organic Plant Food Organic Indoor Plant Fertilizer

Organic Plant Food – Liquid Fertilizer for Indoor & Outdoor Plants, Nutrient-Rich Formula for Growth & Protection, Houseplant & Garden Fertilizer, Liquid Concentrate for Healthy Foliage & Strong Roots
Highlights
Boosts plant nutrition
Omri-certified organic
Easy to use

When it comes to elevating your indoor garden game, we absolutely recommend ARBER’s organic indoor plant fertilizer!

Infused with rosemary oil for added antioxidant benefits, this powerhouse not only supports lush foliage but also promotes vibrant blooms.

It’s perfect for everything from houseplants to herbs and even those cherished tomatoes.

As an OMRI-certified product, it’s safe for your family, pets, and the environment.

Just shake, mix, and apply every 7-14 days—simple and effective.

While it does have a slight odor, the results are undeniably rewarding.

Get ready to watch your garden thrive!

Be sure to also check out the best liquid nitrogen fertilizer for more options! Also, here is the price history so you know exactly when to buy!

Price history for ARBER Organic Plant Food on Amazon

Bloom City

Bloom City Organic Liquid Seaweed and Kelp Fertilizer Supplement, Quart (32 oz) Concentrated Makes 180 Gallons
Highlights
Fully organic ingredients
Safe for all plants
Promotes healthy growth

Clean Kelp by Bloom City is our go-to for all things green and growing!

This fully organic blend boasts seven types of seaweed and kelp, ensuring your plants receive a powerful boost without any nasty fibrous pulp.

We appreciate its easy application—just mix it with water and watch your houseplants and garden thrive.

Yes, it has a strong initial smell, but trust us; the results are worth it!

While it may be a tad pricier and lacks formal organic certification, the healthy growth it promotes makes Clean Kelp a worthwhile investment for your greenery.

Your plants will thank you!

Be sure to also check out the best liquid lawn fertilizer concentrate for more options! Also, here is the price history so you know exactly when to buy!

Price history for Bloom City on Amazon

FoxFarm Big Bloom

FoxFarm - Big Bloom Plant Food, Liquid Fertilizer Concentrate for Flowers, Fruits, and Vegetables, All Purpose Plant Fertilizer for Indoor & Outdoor Potted Plants, NPK 0.01-0.03-0.7 (Pint)
Highlights
Promotes vibrant blooms
Natural ingredients
Easy mixing process

When it comes to achieving those big, vibrant blooms, we wholeheartedly recommend FoxFarm Big Bloom Liquid Plant Food.

This powerhouse fertilizer is crafted from natural ingredients like earthworm castings and bat guano, which means your plants get a nutrient-packed punch without any harmful chemicals.

It's perfect for enhancing root development and boosting flavor—think stronger herbs and tastier veggies!

The mixing process is a breeze, too; just add it to your watering can and let the magic happen.

Keep in mind, it does require frequent applications, but we think the spectacular results are well worth the effort.

Happy gardening!

Be sure to also check out the best hydroponic fertilizer for more options! Also, here is the price history so you know exactly when to buy!

Price history for FoxFarm Big Bloom on Amazon

Marphyl Organic Indoor Plant Fertilizer

MARPHYL Organic Liquid Fertilizer - Outdoor & Indoor Plant Food - All-Purpose, Nutrient-Rich Lawn Fertilizer & Soil Enhancer for House Plants, Flowers, Vegetables, Succulents, Bamboo, Hydroponics
Highlights
Effective for plant growth
Organic and sustainable
Easy to use

We’re excited to introduce MARPHYL Marine Phytoplankton as your go-to organic indoor plant fertilizer!

This powerhouse product thrives on microalgae magic, offering a sumptuous blend of nutrients that your plants will love.

Whether used for houseplants, vegetables, or your lush lawn, it promises to boost growth and vigor.

While it might have a strong initial odor and requires a simple mixing with water, the benefits far outweigh this minor hiccup.

Use it bi-weekly, and you’ll soon witness the transformation in your greenery.

Your indoor jungle will flourish, ensuring your space is bright and vibrant! 🌿

Be sure to also check out the best monstera fertilizer for more options! Also, here is the price history so you know exactly when to buy!

Price history for Marphyl on Amazon

Espoma Grow!

Espoma Organic Grow! Liquid Concentrate Plant Food - All Purpose Fertilizer for Indoor & Outdoor Plants. for Organic Gardening. 16oz Bottle Pack of one
Highlights
Easy to use
Enhances plant growth
Approved for organic gardening

When it comes to nurturing our beloved indoor plants, Espoma Organic Grow! stands out as a worthy contender.

This liquid concentrate is a blend of natural proteins, kelp extracts, and humic acids, all contributing to its balanced 2-2-2 fertilizer analysis.

We love that it's approved for organic gardening and effectively enhances plant growth without any toxic ingredients.

Simply mix it with water and feed your plants every 2-4 weeks for optimal results.

Just a heads up: it does have a strong initial smell, and it can feel a bit pricey, but the benefits are well worth it for our green-thumbed friends!

Be sure to also check out the best outdoor plant stands for more options! Also, here is the price history so you know exactly when to buy!

Price history for Espoma Grow! on Amazon

Organic Plant Magic

Organic Plant Magic - Truly Organic™ Fast-Acting Water Soluble Plant Food - All-Purpose Fertilizer Concentrate for Flower, Vegetable, Herb, Fruit Tree, Garden & Indoor Houseplants [One 1/2 lb Bag]
Highlights
Organic and safe
Easy to use
A little goes far

We’re excited to share our thoughts on Organic Plant Magic's Indoor Plant Fertilizer!

This versatile powder has quickly earned a spot as a favorite among both our team and countless satisfied customers.

It’s as simple as adding it directly to your plants or mixing it into your watering routine – no complicated steps here!

With just ½ lb treating up to 1,000 square feet, a little truly goes a long way.

We’ve seen spectacular growth, vibrant colors, and even tastier veggies when using this product.

Sure, there’s a strong initial odor, but the benefits of healthy, organically nourished plants far outweigh this minor detail.

Your indoor garden will thank you!

Be sure to also check out the best knockout rose fertilizer for more options! Also, here is the price history so you know exactly when to buy!

Price history for Organic Plant Magic on Amazon

Bless Your Soil Organic Indoor Plant Fertilizer

Big Green Leaves | Superfood Houseplant Fertilizer, Indoor Plants - Water Soluble Plant Food + Organic Kelp | 4X More Concentrated | 12-4-8 NPK (1LB)
Highlights
Promotes vibrant plant growth
Safe for constant use
Easy application process

When it comes to nurturing our leafy friends, we absolutely love Big Green Leaves!

This high-nitrogen fertilizer is our secret weapon to transform dull houseplants into thriving beauties.

Thanks to its unique blend of vitamins, minerals, and organic superfoods, we get to witness the vibrant growth of ferns, pothos, and even our beloved peace lilies.

The application is a breeze with the pre-measured scoop—just mix 1-2 teaspoons per gallon of water, and you’re golden!

While the plastic packaging could be improved, the results are undeniably impressive.

Let's keep our indoor garden flourishing! 🌱

Be sure to also check out the best low nitrogen fertilizer for more options! Also, here is the price history so you know exactly when to buy!

Price history for Bless Your Soil on Amazon

Burpee Organic Food

Burpee Natural Purpose Granular 4-Lb Organic Food for Growing Strong Plants | Good for Vegetable Garden, Flower Garden & Seed Starting, 4 lb, 4lb. Bag
Highlights
Easy to apply granules
Organic certified and safe
Effective for all plants

When it comes to nourishing our indoor plants, Burpee’s All-Purpose Organic Plant Food really stands out!

With its OMRI certification, we love how it provides major nutrients along with essential microbes, ensuring our plants are both happy and healthy.

The easy-to-apply granules work their magic for up to three months, making feeding a breeze.

Perfect for everything from flowers to vegetables, this versatile blend enhances growth and blooms magnificently.

Sure, it might seem a bit pricey for a small bag, but the results truly speak for themselves.

We’re excited to see our plants flourish with Burpee!

Be sure to also check out the best adenium fertilizer for more options! Also, here is the price history so you know exactly when to buy!

Price history for Burpee Organic Food on Amazon

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