Best Orchid Fertilizer (30-10-10): High Nitrogen for Vigorous Leaf & Root Growth in Bark-Based Media Buy on Old Cobblers Farm
Orchids grown in bark lose nitrogen to the decomposition process — bark-decomposing microbes consume N before the orchid can use it. This 30-10-10 compensates with triple the nitrogen, ensuring your orchids actually get the nutrition they need despite the media stealing it.
Old Cobblers Farm™ Wicked Growth Orchids Fertilizer
by Conventional Fertilizer — Littleton, NH
30% Nitrogen for Bark Media
Bark media harbors microbes that consume nitrogen as they decompose the bark. 30% N ensures enough gets past the microbes to actually reach your orchid's roots.
"Weakly, Weekly" Feeding
¼ teaspoon per gallon, every week during active growth. The orchid world's proven feeding cadence — light, consistent nutrition rather than heavy, infrequent doses.
Drives Leaf & Root Production
Nitrogen powers new leaf growth and the thick aerial roots that are the hallmark of healthy orchids. More leaves and roots = a bigger, stronger plant capable of spectacular blooms.
960 Doses Per Bag
At ¼ tsp per dose, one 5 lb bag produces approximately 960 individual feedings. That's years of weekly feeding for a typical orchid collection.
Switch to Bloom Booster for Spikes
Use this 30-10-10 during vegetative growth, then switch to a higher-P formula when flower spikes emerge to support bud development. Growth phase = high N. Bloom phase = high P.
Weekly Growth / Monthly Rest
Feed weekly during active growth periods (new leaves, new roots). Reduce to monthly during rest periods or winter when growth slows naturally.
All Orchid Genera
Phalaenopsis, cattleya, dendrobium, oncidium, vanda, paphiopedilum, miltonia, cymbidium — the entire orchid world benefits from high-N feeding during vegetative growth.
Trusted by 20,000+ Growers
Developed in Littleton, New Hampshire. Sold nationwide on Amazon, Walmart, eBay, and theoldcobblersfarm.com.
| NPK Ratio | 30-10-10 |
| Item Form | Granular (dissolve for use) |
| Coverage | ~960 doses — multi-year supply per 5 lb bag |
| Category | Conventional Fertilizer |
| Type | Flower & Garden |
| Sizes | 5 lb | 10 lb | 15 lb | 20 lb |
| NPK | 30-10-10 |
| Nitrogen | 30% |
| Phosphorus | 10% available phosphate |
| Potassium | 10% soluble potash |
| Form | Granular (dissolve for use) |
| Rate | ¼ tsp / gallon water |
| Method | Dissolve and drench weekly |
| Frequency | Weekly (growth) / Monthly (rest) |
| Sizes | 5, 10, 15, 20 lb bags |
| Best For | Phalaenopsis, cattleya, dendrobium, oncidium, all orchids in bark media |
| Note | Switch to high-P formula during bloom phase |
| Feature | Old Cobblers Farm™ Wicked Growth Orchids Fertilizer Old Cobblers Farm | Ready-to-Use Orchid Mist Miracle-Gro | Water Soluble Orchid Food Miracle-Gro | Orchid Plus Better-Gro | Orchid Bloom Booster Better-Gro | Orchid! Liquid Plant Food Espoma Organic | Orchid Special Jack's Classic | Orchid Pro Superthrive | Premium Orchid Plant Food EarthPods | Feed ME! Orchid Fertilizer repotme | Orchid Food Water Soluble Schultz |
|---|---|---|---|---|---|---|---|---|---|---|---|
| NPK | 30-10-10 | 0.02-0.02-0.02 | 30-10-10 | 20-14-13 | 11-35-15 | 1-3-1 | 30-10-10 | 7-8-6 | 0.2-0.2-0.4 | 13-3-15 | 19-31-17 |
| Form | Granular (dissolve for use) | — | — | — | — | — | — | — | — | — | — |
| Coverage | ~960 doses — multi-year supply per 5 lb bag | Not listed | Not listed | Not listed | Not listed | Not listed | Not listed | Not listed | Not listed | Not listed | Not listed |
| Price / Size | 5 lb | 10 lb | 15 lb | 20 lb | $6-$9 | $6-$8 | $10 | $10 | $10 | $12-$18 | $15 | $20-$25 | $18 | $8-$10 |
| Our Take | The orchid specialist with 30% nitrogen — the highest N in the enti... | — | — | — | — | — | — | — | — | — | — |
Ready-to-Use Orchid Mist
Water Soluble Orchid Food
Orchid Plus
Orchid Bloom Booster
Orchid! Liquid Plant Food
Orchid Special
Orchid Pro
Premium Orchid Plant Food
Feed ME! Orchid Fertilizer
Orchid Food Water Soluble
30% Nitrogen for Bark Media
Bark media harbors microbes that consume nitrogen as they decompose the bark. 30% N ensures enough gets past the microbes to actually reach your orchid's roots.
"Weakly, Weekly" Feeding
¼ teaspoon per gallon, every week during active growth. The orchid world's proven feeding cadence — light, consistent nutrition rather than heavy, infrequent doses.
Drives Leaf & Root Production
Nitrogen powers new leaf growth and the thick aerial roots that are the hallmark of healthy orchids. More leaves and roots = a bigger, stronger plant capable of spectacular blooms.
960 Doses Per Bag
At ¼ tsp per dose, one 5 lb bag produces approximately 960 individual feedings. That's years of weekly feeding for a typical orchid collection.
