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Home & Garden
Drop It In. Watch It Grow.
Dr.Joe brings Nousbo's professional CRF science to your home garden — as effervescent bubble tablets you simply drop in water and pour. No measuring. No mess. Just results.
"Your garden expert in a granule —
now in a bubble."
Dr.Joe launched in 2020 as Nousbo's consumer brand, bringing 18+ years of professional Controlled Release Fertilizer expertise into your home garden. Registered in all 50 U.S. states and now sold globally via drjoe-plantfood.com — Dr.Joe makes professional plant nutrition as simple as dropping a tablet into water.
OMRI Certified (Organic)
All 50 U.S. States Registered
Sold in 10+ Countries
Hi-COTE CRF Technology Inside
Why Dr.Joe is different
Professional-grade plant nutrition — simplified for every gardener.
Most garden fertilizers either overwhelm your plants with a sudden flood of nutrients, or disappear after one rain. Dr.Joe uses the same polymer-coated CRF technology trusted by commercial growers worldwide — in formats designed for the home garden.
01
Effervescent Bubble Tablets
Drop one tablet into 4–8L of water, stir until dissolved, pour on soil. Each 56g tube contains 30 tablets. No measuring, no mess — the fastest way to feed your plants professionally.
02
Controlled Release Technology
Easy Coat CRF sticks and Hi-COTE granule products use polymer-coating to release nutrients slowly over 3–6 months. One application lasts the entire growing season.
03
Crop-Specific Formulas
Every Dr.Joe product is formulated for a specific plant type — flowers, vegetables, lawns, indoor plants, tomatoes. The right NPK balance for exactly what you're growing.
04
Zero Burn. Safe for Seedlings.
Controlled-release and diluted liquid formats eliminate root burn risk. Dr.Joe is safe for the most sensitive plants, including seedlings, orchids, and succulents.
Bestsellers
Dr.Joe Soluble Bubble Series
Effervescent water-soluble fertilizer tablets — 100% soluble, chelated nutrients, no stirring required. Each tube holds 30 tablets × 56g. Drop. Dissolve. Pour. Done.
Effervescent Technology
Soluble Bubble
100% water-soluble effervescent fertilizer tablets. Citric acid enhances nutrient mobility and uptake. No weighing, no mixing equipment, no residue. Apply every 1–2 weeks for best results.
1
Drop 1 tablet into 4–8 liters of water
2
Wait ~2 minutes — tablet fully dissolves (no stirring needed)
3
Pour solution on soil surface, wetting it enough to reach roots
4
Repeat every 1–2 weeks for sustained nutrition
Bestseller
NPK 15-15-5
Growing Bubble
All Purpose
Balanced all-purpose effervescent tablet for general plant growth and development. Provides essential NPK for healthy stems, roots, and foliage across all plant types.
56g tube / 30 tabs
4–8L per tablet
Every 1–2 wks
See Product
Bestseller
NPK 10-20-10
Blooming Flower Bubble
Flowers
High-phosphorus formula that boosts bloom vibrancy and flower count. Promotes healthy coloring and abundant flowering for roses, orchids, and all flowering plants.
56g tube / 30 tabs
4–8L per tablet
Every 1–2 wks
See Product
Bestseller
K₂O + 8 Chelated Microelements
Nutri Bubble
Deficiency Treatment
EDTA-chelated micronutrient complex with 8 essential trace elements. Prevents and corrects nutrient deficiencies, increases fruit set, and promotes chlorophyll formation.
250g bottle / 500g pouch
4g per tablet
Every 10–15 days
See Product
Bestseller
NPK 14-14-14
Tomato & Vegetable Bubble
Vegetables
Specially balanced for fruit and vegetable crops. Triple-equal NPK supports healthy foliage, abundant fruit set, and higher-quality harvests for tomatoes, peppers, cucumbers, and more.
56g tube / 30 tabs
4–8L per tablet
Every 1–2 wks
See Product
1 tabletper 4–8 liters water
~2 minfully dissolved
Pour on soildeep enough to reach roots
Repeatevery 1–2 weeks
Caution: Not suitable for orchids. After full dissolution, seal container and store in cool place.
Premium Product Lines
Easy Coat & Pure Solution
Beyond the Bubble series, Dr.Joe offers two premium specialty lines for gardeners who want even longer-lasting or more specialized plant nutrition.
Slow Release CRF · Premium
Easy Coat
Premium controlled-release fertilizer in convenient stick form. Push 1 stick into the soil near the root zone — it releases nutrients continuously for up to 6 months. No daily or weekly attention needed.
NPK 20-6-14
Release: 6 months
10 sticks/pack
No odor · Clean to use
Balanced N, P, K for all home plants and garden crops
Slow release prevents burn — safe for orchids, succulents, and sensitive plants
Pot size guide: 10cm pot = 2–3 sticks; 30–50cm pot = 8 sticks
Apply every 3 months — twice per growing season
Hydroponic & Irrigation · Premium
Pure Solution
Premium liquid fertilizer concentrate stick specially designed for hydroponic systems and irrigation feeding. Dissolve 1 stick in 3L of water when changing water every 2–4 weeks. No soil needed.
NPK 1.5-1.5-1.5
Nitrate N source (direct absorption)
10 sticks/pack
Change water every 2–4 wks
Nitrate nitrogen for direct plant absorption — no decomposition lag
Includes essential microelements: B, Mo + chelated Fe, Zn, Mn, Cu
Ideal for hydroponic leafy vegetables, fruit veggie systems, nursery
Positive ion absorption — superior nutrient utilization vs. urea-based
Complete Home & Garden Range
Every plant. Every need. One brand.
The full Dr.Joe and Nousbo Home Plant & Gardening lineup covers every fertilizer need — from CRF granules and slow-release sticks to organic and soil-improvement products.
Hi-COTE Advance
CRF Granule
Homogeneous polymer-coated CRF granules for home garden, potted plants. 14-14-13 + trace elements. Release up to 90 days. 300g pack. Apply every 3 months.
Organic Max
Organic · OMRI Listed
N-guano based organic fertilizer, 9-1-2. 70%+ organic matter. OMRI certified. Conditions soil toward neutral pH, extended effect from early growth to harvest. 300g pack.
Jumbo Tabs
Slow Release Nugget
Slow-release nugget for trees, shrubs, and vines. 13-7-7+MgO. Step & Go — place near stem, no digging needed. 1 piece per 5L pot or per 30cm plant height. 1kg pack.
Foliar Bubble
Foliar WSF
Slow release water-soluble foliar fertilizer. 21-3-17 + B, Mo, NPS. Effervescent tablet dissolves easily — can be mixed with pesticides. Apply as foliar spray every 2–3 weeks. 2kg pack.
Silica Bubble
Si + K Effervescent
Si+K+MgO+Citric Acid effervescent tablet. Strengthens cell walls, improves disease/pest resistance, accelerates photosynthesis. Available in tablet (hand throw) and powder (spray/irrigation). Sold in 10+ countries.
Nutri Bank
Microelement Granule
Homogeneous microelement fertilizer (CaO 9%, S 7%, MgO 12% + Zn, Fe, MnO, B₂O₃, Cu, Mo). Simplifies micronutrient management in one season-long application. Ideal for Ca/Mg-deficient soils.
Growing Bubble
All Purpose · Bestseller
Dr.Joe's best-selling all-purpose bubble tablet. 15-15-5 NPK. For general plant growth, development, and maintenance of all varieties. 56g tube, 30 tablets, reusable packaging.
Blooming Flower Bubble
Flowering · Bestseller
High-phosphorus 10-20-10 bubble tablet for all flowering plants. Boosts bloom number, vibrancy, and healthy coloring. Used by rose, orchid, and petunia growers worldwide.
The Science Behind It
How Dr.Joe Bubble technology feeds your plants
Effervescent fertilizer tablets might seem simple — but there's precision science behind every bubble.
1
100% Water-Soluble Formula
Each tablet contains fully chelated NPK and micronutrients in precise proportions. Unlike solids or powders, chelated nutrients remain stable in solution and don't precipitate or react with hard water minerals.
2
Citric Acid Activator
The effervescent reaction is powered by citric acid — which lowers solution pH slightly, enhancing micronutrient solubility and mobility in the soil. This means nutrients travel further toward roots than plain water-dissolved fertilizers.
3
EDTA Chelation in Nutri Bubble
Nutri Bubble's micronutrients are wrapped in EDTA chelate shells — protecting Fe, Mn, Cu, and Zn from reacting with soil particles before they reach roots. Chelated nutrients are 3–5× more bioavailable than unchelated alternatives.
4
Soil Application = Root Zone Delivery
Pouring the solution directly onto soil brings nutrients into the root zone — where uptake happens. Combined with Hi-COTE's CRF technology in Easy Coat and other granule products, Dr.Joe covers both immediate and season-long nutrition.
Easy Coat uses Hi-COTE CRF: The polymer-coated stick releases nutrients via osmotic pressure — water enters the coating, dissolves nutrients, and they diffuse out at a rate controlled by soil temperature. This is the same mechanism used in professional CRF for golf courses and commercial horticulture.
Dr.Joe vs. conventional garden fertilizers
| Feature | Standard Soluble | Dr.Joe Products |
|---|---|---|
| Applications per season | Every 1–4 weeks | 1× (CRF) or weekly (Bubble) |
| Nutrient burn risk | High if over-dosed | None |
| Chelated micronutrients | — | ✓ Nutri Bubble |
| Safe for seedlings | At low rate only | ✓ Always |
| Hydroponic / soil-less | Some | ✓ Pure Solution |
| Slow-release CRF option | — | ✓ Easy Coat / Hi-COTE |
| Organic / OMRI option | Limited | ✓ Organic Max |
| Eco-friendly coating | — | ✓ ECO+ biodegradable |
Key advantage of Nutri Bubble: Contains 8 chelated microelements including EDDHA-Fe — the most effective form for iron uptake in high-pH, calcareous soils where standard Fe sources fail. Ideal for iron-chlorotic plants in limestone or hard-water regions.
Garden Applications
Dr.Joe works everywhere you grow
From indoor pots to outdoor vegetable beds — find the right Dr.Joe product for your gardening context.
Vegetables & Herbs
Tomato & Vegetable Bubble (14-14-14) for fruiting crops. Growing Bubble (15-15-5) for leafy greens. Easy Coat for season-long raised bed nutrition.
Flowers & Roses
Blooming Flower Bubble (10-20-10) for more blooms and vivid color. Nutri Bubble for iron-chlorosis prevention in roses. Apply weekly during flowering season.
Pots & Containers
Easy Coat CRF sticks for 6-month container nutrition. Growing Bubble weekly for fast-growing potted plants. Pure Solution for hydroponic or water-culture containers.
Lawn & Turf
Hi-COTE Advance granules for even, sustained turf feeding. Apply once in spring for season-long green-up without flush growth or burn patches.
The Technology Behind Dr.Joe
18+ years of professional CRF science —
18+ years of professional CRF science —
now in your garden.
2020
Dr.Joe brand launched, USA
50
U.S. states registered
10+
Countries where Dr.Joe is sold
OMRI
Organic certified products available
Dr.Joe products are powered by Hi-COTE — the same Controlled Release Fertilizer technology Nousbo has manufactured since 2006 for professional growers on six continents. The polymer-coating system, the chelation chemistry, the effervescent tablet science — all of it comes from the same ISO 9001-certified facility in Ulsan, South Korea that ships 30,000 metric tons per year to commercial partners worldwide.
When you open a tube of Dr.Joe Growing Bubble or a pack of Easy Coat sticks, you're getting the same precision plant nutrition as a commercial greenhouse or golf course — just packaged for your kitchen shelf. No guesswork. No over-application. No burnout. Just the science that professional growers trust, made simple for every gardener.
Explore Hi-COTE Technology
Quality & Safety
Certified, tested, trusted
Every Dr.Joe product is manufactured under Nousbo's professional-grade quality certifications — giving you the same confidence as a commercial buyer.
ISO 9001 Quality Management
ISO 14001 Environmental Management
OMRI Listed (Organic Max — USDA Organic)
Registered in all 50 U.S. States
RDA Fertilizer Testing Institute — Korea
Korea High-Quality Fertilizer — 2025
ECO+ Biodegradable Polymer Available
REACH Registered — EU
Safe for pets & children (dry granule / dissolved solution)
Ready to grow smarter with Dr.Joe?
Shop the full Dr.Joe range at drjoe-plantfood.com, or explore all Nousbo Home & Garden products at global.nousbo.com. Have a question? Our garden team responds within one business day.
Dr.Joe
by NOUSBO
Professional CRF technology
for every home gardener
for every home gardener
