Specs are compiled from manufacturer listings and verified buyer reviews and can change over time — please confirm the key details on the product page before buying.
Your peace lily droops, the leaves yellow at the edges, and those elegant white blooms you were promised never seem to arrive. The problem is almost never your watering schedule — it is almost always what you are feeding the roots. Pick the wrong plant food and you get weak stems or burned leaf tips; pick the right one and you get glossy deep-green foliage and those signature spathes that make a peace lily worth having in the first place.
I’m Rikta — the founder and writer behind Lawn Gear Lab. This guide is built by comparing the manufacturers’ published specifications and the patterns across verified customer reviews, so you get each pick’s real strengths and trade-offs instead of marketing spin.
Whether you own a classic Spathiphyllum Sensation or a petite Domino variety, finding the right plant food for peace lily means matching the nutrient balance and concentration to your plant’s exact stage of growth.
Quick Picks
- HiThrive 32oz Peace Lily Plant Food — Best Overall
- Miracle-Gro Indoor Plant Food, 2-Pack — Top Performer
- EZ-GRO Peace Lily Fertilizer, 8 fl oz — Best Value
- TPS Nutrients Peace Lily Fertilizer, 32 fl oz — Bloom Booster
- HiThrive 16oz Peace Lily Plant Food — Compact Pick
- Gardenera Plant Superfood Spray for Peace Lily, 8 oz — Foliar Rescue
- Gardenera Premium Organic Seaweed & Kelp Superfood, 8 oz — Organic Choice
How To Choose The Best Plant Food For Peace Lily
A peace lily is a tropical understory plant that evolved in dappled light on a forest floor rich in organic matter. Feed it the wrong ratio and you push leaf growth at the expense of blooms, or worse, you burn the roots. Here are the three things to check before you pour anything into that pot.
Look for the NPK ratio that matches foliage and flowers
The three numbers on every fertilizer label stand for nitrogen (for leaves), phosphorus (for roots and blooms), and potassium (for overall resilience). Peace lilies need a balanced feed — a ratio like 3:1:2 works well because it gives enough nitrogen to keep leaves deep green while still providing phosphorus for bloom formation. A ratio that is too high in nitrogen will give you a bushy green plant with no white spathes.
Prefer liquid concentrates over spikes or slow-release pellets
Peace lilies prefer consistent, gentle feeding rather than one big dose. Liquid concentrates let you control how much goes in at every watering, and you can skip a feed when the plant goes semi-dormant in winter. Solid spikes release nutrients unevenly into the potting mix and can concentrate salts near the roots, which peace lilies — being sensitive to salt buildup — do not tolerate well.
Check whether micronutrients are included
Magnesium prevents older leaves from yellowing between the veins. Calcium supports cell-wall strength so stems stand upright. Zinc and iron help the plant produce chlorophyll, which keeps foliage that signature dark green. A fertilizer that lists these extras is giving your peace lily the same kind of balanced nutrition it would get from fresh compost in its native jungle soil.
Quick Comparison
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| Model | Best For | Liquid Volume | NPK / Type | Item Weight | Amazon |
|---|---|---|---|---|---|
| HiThrive 32oz | Highest value per gallon | 32 fl oz | N-P-K with Ca/Mg/Zn | 1.2 lb | Amazon |
| Miracle-Gro 2-Pack | Trusted brand, instant feeding | 2 x 8 fl oz | Liquid, pump-style | 16 oz | Amazon |
| EZ-GRO 8oz | Precise 3:1:2 ratio | 8 fl oz | 3:1:2 NPK | 113 g | Amazon |
| TPS Nutrients 32oz | Gentle bloom support | 32 fl oz | 3:1:2 NPK | 2.5 lb | Amazon |
| HiThrive 16oz | Compact beginner option | 16 fl oz | N-P-K with Ca/Mg/Zn | 1.2 lb | Amazon |
| Gardenera Superfood Spray | Foliar spray for rescue plants | 8 fl oz | B1, Glucose, Minerals | 8 oz | Amazon |
| Gardenera Kelp 8oz | Organic seaweed concentrate | 8 fl oz | Ascophyllum Nodosum | 4 oz | Amazon |
In‑Depth Reviews
1. HiThrive 32oz Peace Lily Plant Food
The biggest bottle at the best per-gallon cost, built for steady leaf and root gains.
You get a full 32 fluid ounces of concentrate that mixes into 192 gallons of feed — buyers report it “keeps peace lily thriving” and “lasts a while.” That gives you 32 fluid ounces versus the 16oz HiThrive version at 16 fluid ounces, and it makes 192 gallons versus 96 gallons. The formula packs nitrogen for leaves, phosphorus for roots, and potassium for resilience, plus calcium, magnesium, and zinc to prevent yellowing between the veins.
That means this is a nitrogen-leaning mix — excellent for greening up a tired plant, but you might need to switch to a more bloom-focused feed once the foliage is lush.
The 32oz bottle weighs 1.2 pounds and comes with a simple mixing cap. It suits Spathiphyllum Sensation, Domino, Petite, and Mauna Loa Supreme varieties alike.
At 32 fl oz making 192 gallons, this is the most feed-per-dollar pick here, best for anyone with multiple peace lilies or large specimens that need consistent weekly feeding.
Balanced 32oz feed: If your priority is forcing white spathes, you may need to supplement with a phosphorus-heavy feed — this formula leans toward foliage and root strength.
reach for this if: you have 3 or more peace lilies or want to go six months between buying new fertilizer.
If you only have one small peace lily, the 16oz bottle is cheaper and less likely to sit unused for a year.
2. Miracle-Gro Indoor Plant Food, 2-Pack
The name every houseplant owner trusts, with a pump that makes feeding simple to use.
Miracle-Gro’s liquid plant food comes as a 2-pack, each bottle holding 8 fluid ounces with a built-in pump dispenser. You press once for small pots and twice for large pots — no measuring cups, no mixing ratios to remember. Owners mention it “effectively boosted growth and vibrancy in snake plants, peace lilies, and herbs” and that “8 oz lasts long.” The formula feeds instantly, so you see greener leaves within a few days.
The catch: at a liquid volume of 236.59 milliliters per bottle, this is one of the smaller total volumes in the list, and the cost per ounce is higher than the HiThrive concentrates. It also works on snake plants, croton, succulents, and herbs, making it a generalist rather than a peace-lily-specific feed.
Customers note the pump is precise and the smell is mild — no strong chemical odor. It is also convenient for anyone who dislikes mixing concentrates: just pump and water.
Two-pack value: The pump applicator removes all guesswork — 1 pump for small pots, 2 for large — and the 2-pack means you have a backup bottle ready.
Generic blend: At 2 x 8 fl oz total, this gives you 16 fl oz versus the HiThrive 32oz at 32 fl oz and costs more per gallon of finished feed.
best for: beginners who want a no-mix, no-measure solution that works on every houseplant on the shelf.
With multiple peace lilies, the HiThrive 32oz gives you lower cost per gallon.
3. EZ-GRO Peace Lily Fertilizer, 8 fl oz
A precision 3:1:2 ratio made by an agronomist, sized right for a single peace lily.
EZ-GRO uses a 3:1:2 NPK ratio — meaning three parts nitrogen for leaf growth, one part phosphorus for roots, and two parts potassium for overall plant health — which is a textbook balance for tropical foliage. The 8 fluid ounce bottle weighs just 113 grams, and the mixing instruction is straightforward: 2 tablespoons per gallon of water at each watering. One reviewer noted they “use 1 cap per half gallon every other watering” and their snake plant is thriving even in low sunlight.
Compared to the 16oz HiThrive, the EZ-GRO bottle is 8 fl oz versus 16 fl oz, so you will buy refills sooner if you have several plants. But for a single peace lily in a 6-inch pot, this is enough concentrate to last several months. The formula also helps regulate media pH — useful if your tap water has moderate to high alkalinity.
Ray DeBruhl, the agronomist who formulated this, spent decades developing greenhouse nutrient programs. The scientific pedigree shows in the clean ratio.
Compact 8oz bottle: The 3:1:2 NPK is arguably the best all-around balance for peace lilies — not too heavy on any one nutrient, so you avoid both nitrogen overdose and bloom starvation.
Three-month supply: At 8 fl oz it holds 8 fl oz versus the 16oz HiThrive at 16 fl oz, so a heavy feeder will need a replacement sooner.
grab this for: a single peace lily where you want science-backed ratios and clean results.
If you need to feed multiple large pots, a bigger bottle saves you effort.
4. TPS Nutrients Peace Lily Fertilizer, 32 fl oz
A 32-ounce concentrate that reviewers point out actually pushed their peace lily to bloom again.
TPS Nutrients delivers a 3:1:2 NPK ratio in a 32-fluid-ounce bottle weighing 2.5 pounds — it is the heaviest bottle in this lineup. One buyer mentioned that after buying this on May 28, they found two blooms on their peace lily by June 27 — a peace lily that “had quit blooming” entirely. Another reviewer said their plant “has gotten bigger since I’ve started using it.” The formula is designed to be gentle on sensitive roots, preventing the yellowing leaves and nutrient stress that overfeeding causes.
Unlike the HiThrive 16oz, which is 16 fluid ounces and does not state an explicit 3:1:2 ratio here, the TPS Nutrients product is 32 fluid ounces and states its NPK clearly. That ratio matches the EZ-GRO in balance but comes in a 32-fluid-ounce bottle versus the EZ-GRO at 8 fluid ounces, making it a direct competitor to the HiThrive 32oz for anyone who wants the 3:1:2 balance in bulk.
The brand also emphasizes gentle feeding — you use it with every watering without burning, which makes it convenient for consistent nutrition.
Large 32oz volume: Real buyer reports of reblooming within a month give this an edge over formulas that only green up foliage.
Niche brand: At 2.5 lbs, it weighs 2.5 lbs versus the HiThrive 32oz at 1.2 lb — shipping cost may be higher, but you get the same 32 fl oz.
ideal for: peace lily owners who are frustrated by a plant that is all leaves and no blooms and want a proven 3:1:2 ratio in a bulk bottle.
not ideal for: small-space storage — the bottle is big and heavy.
5. HiThrive 16oz Peace Lily Plant Food
Half the size of the 32oz sibling, still makes 96 gallons, ideal for one or two plants.
The 16-ounce HiThrive concentrate matches the 32-ounce version nutrient-for-nutrient — nitrogen for leaves, phosphorus for roots, potassium for resilience, plus calcium, magnesium, and zinc — but in a smaller, more manageable bottle. One owner reported that after using it, “it has grown new leaves” even though it hadn’t bloomed yet, and another said “leaves noticeably perkier and more abundant.” The mixing ratio is 1:10, and you apply with every watering for consistent nourishment.
At 16 fluid ounces it holds 16 fluid ounces versus the EZ-GRO 8oz bottle at 8 fluid ounces. The 1.2-pound weight means it is easy to handle even for small hands.
A helpful buyer tip: dilute more than the label says to avoid burning sensitive roots — one reviewer who followed the instructions exactly saw some leaf burn, so start at half-strength for the first two feeds.
16 fl oz hits the balance between the tiny 8oz bottles and the gigantic 32oz ones — enough for months of feeding without taking up cabinet space.
Smaller 16oz dose: This is a foliage-first formula; don’t expect instant blooms.
pick this if: you have 1-2 peace lilies and want the best overall value concentrate without committing to a 32oz bottle.
If seeing white spathes is your top goal, the TPS Nutrients or a bloom-specific supplement may serve you better.
6. Gardenera Plant Superfood Spray for Peace Lily, 8 oz
A spray-on rescue formula with Vitamin B1 and glucose for plants in serious trouble.
This is not a conventional liquid concentrate — it is a ready-to-use spray that you apply directly to leaves, stems, and soil. The formula includes Vitamin B1 to stimulate root development and reduce transplant shock, glucose for an immediate energy boost, and micronutrients like iron, manganese, and zinc for overall plant health. One customer observed it “saved dying avocado and Meyer lemon trees,” and another said “my diffenbachia… responded within a week.”
At 8 fluid ounces and 8 ounces total weight, this is the lightest product in the lineup alongside the Gardenera kelp option. The mixing ratio is listed at 1:0 because it comes ready to spray — no dilution needed. Buyers suggest 2-3 sprays at the base and 3-4 sprays on the leaves every 9-10 days.
Compared to the liquid concentrates, the spray format is much faster to apply but covers fewer plants per bottle. It is best kept as a rescue treatment for a struggling peace lily rather than a weekly feed.
Spray application: The spray-on format with B1 and glucose is unique here — nothing else offers foliar feeding specifically for plants that are shocked or yellowing.
Small 8oz can: At 8 fl oz and no dilution, you will go through the bottle faster than with concentrates that make 96+ gallons.
reach for this when: your peace lily just came home from the store, looks pale, or is recovering from overwatering.
If your plant is already healthy and you just need a regular feed, a concentrate gives you more value.
7. Gardenera Premium Organic Seaweed & Kelp Superfood, 8 oz
Organic Ascophyllum Nodosum kelp concentrate that enriches soil as it feeds the plant.
This is the only organic seaweed-based option in the roundup. The 8-ounce bottle of concentrate dilutes to make 45 gallons of feed, using premium Ascophyllum Nodosum kelp harvested for its natural growth hormones, amino acids, and trace minerals. Shoppers say it “helped my Lil trees grow tall” and “brought my plant back to life — the leaves look greener and new growth is already starting to show.” One person noted their banana plants survived a brutal winter after using it.
At 4 ounces total weight, this is the lightest product in the list — 4 oz versus the Gardenera superfood spray at 8 oz and the HiThrive bottles at 1.2 lbs. The mixing ratio is either 1:100 or 1:200 depending on whether you use it as a soil drench or foliar spray, giving you flexibility. It also supports soil microbial health and moisture retention, which is an added benefit no synthetic fertilizer offers.
The downside: at 8 fluid ounces making only 45 gallons, the concentration is lower than the HiThrive 16oz which makes 96 gallons from the same bottle size. You get less feed per ounce.
Organic seaweed: The organic kelp feeds soil microbes and improves moisture retention — something no synthetic NPK-only formula does.
Kelp only: This makes 45 gallons from 8 oz, while the HiThrive makes 96 gallons from 16 oz — you will use this up faster if you have multiple plants.
perfect for: organic gardeners who want to avoid synthetic salts and prefer a soil-health approach that also feeds the peace lily.
not the best if: you want the highest possible bloom count — this is a gentle tonic, not a bloom booster.
Understanding the Specs
NPK Ratio — The Three Numbers That Matter
The three numbers on a fertilizer label stand for nitrogen (N), phosphorus (P), and potassium (K). Nitrogen pushes leaf growth and green color. Phosphorus supports root development and flower bud formation. Potassium strengthens the plant against stress and disease. For a peace lily, a ratio like 3:1:2 is balanced — enough nitrogen for deep green leaves without starving blooms. A ratio too high in nitrogen, like a 20-10-10 lawn food, will give you huge leaves and zero white spathes.
Liquid Volume and How Many Gallons It Makes
Liquid concentrates vary from 8 fluid ounces to 32 fluid ounces per bottle. The number that really matters is “makes X gallons” — that tells you how much finished feed you get. A 32 oz bottle making 192 gallons is obviously the best value for multiple plants, but a 8 oz bottle making 45 gallons may be plenty for a single peace lily. Always check the mixing ratio (e.g. 1:100 means 1 part concentrate to 100 parts water) so you know exactly how many waterings that bottle will cover.
FAQ
How often should I feed my peace lily?
Can I use any houseplant fertilizer on my peace lily?
Why are my peace lily leaves turning yellow even after feeding?
Is organic seaweed fertilizer better than synthetic NPK for peace lilies?
Can I use this fertilizer on my snake plant and pothos too?
How do I mix liquid peace lily fertilizer?
Should I fertilize my peace lily right after repotting?
What does a 3:1-2 NPK ratio actually mean for my plant?
How long does an 8 oz bottle of concentrate last?
My peace lily has brown leaf tips — is it the fertilizer?
Final Thoughts: The Verdict
For most people, the plant food for peace lily winner is the HiThrive 32oz because it delivers the best per-gallon value, includes key micronutrients for leaf and root health, and makes 192 gallons from a single bottle. If you want a precision 3:1:2 ratio for consistent growth, grab the EZ-GRO 8oz. And for peace lily owners who want to force blooms back on a stubborn plant, the standout is the TPS Nutrients 32oz — real buyers confirm it pushes white spathes within weeks.
How We Picked
We do not accept paid placement, and we did not hands-on test every unit. Instead, we match each pick to a real buyer and use-case by comparing the manufacturers’ published specifications against the patterns in verified customer reviews — so you get each pick’s real strengths and trade-offs instead of marketing copy.
Sources & Methodology
Specifications: manufacturer listings and product documentation. Review insights: verified customer reviews, as of July 2026. Pricing: not shown on this page (it changes often); check the current price via the retailer link.
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