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The Best Fertilizer for Indoor Plants
Discover the best fertilizer for indoor plants that will transform your garden during the vital flowering stage!
Introducing Holland Secret Bloom, part of the 3-part plant fertilizer system that delivers all 12 essential micro and macro nutrients, ensuring your plants thrive without deficiencies during their blooming phase. This pH-buffered formula means less time diagnosing plant diseases and more time enjoying a bountiful harvest.
Holland Secret Bloom is known for its ease of use and adaptability, suitable for any grow medium, situation, or stage of the grow cycle. Specifically formulated to support vibrant flowering and fruiting, Holland Secret Bloom provides the essential nutrients your plants need to produce abundant, high-quality blooms and fruits.
Experience the ultimate indoor plant fertilizer for the flowering stage today!
AVAILABLE SIZES

Key Features:
- Automatically buffers pH to optimal levels for growth.
- 100% sediment-free, preventing nutrient salts from falling out of solution and becoming unavailable to your plants.
- Suitable for both novices and experts, offering precise control over feeding schedules.
- Extremely low salt index and only the finest raw materials used.
- Adjust the ratio between the three bottles to tailor nutrition for each specific stage of plant growth.
- Can be used as a stand-alone or as part of a complete feed program.
GUARANTEED ANALYSIS

Additional Info
Use all three parts of the Holland Secret 3-Part plant fertilizer together for optimal results. Using only one or two parts, like Grow and Bloom without Micro, could lead to nutrient deficiencies.
CFIA certified and suitable for foliar spray, Holland Secret Bloom meets all regulatory standards.
Downloads and Schedules
For more information on how to use Holland Secret Bloom, please refer to our Downloads and Schedules tab.
For foliar spray recipes that include the Holland Secret 3-part plant fertilizer, simply click here to go our blog article on foliar spray recipes.
Customer Reviews
Disclaimer
The values provided on these feeding charts are meant as a general growing guide.Results may vary based on such factors as genetics, environment, and water quality.It is up to the end user to make the necessary adjustments based upon their individual situation.
Fine-Tune your Feed - Click To Explore Our Nutrient Calculator
FEED SCHEDULES AND GROW GUIDES |
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FUTURE HARVEST 8 WEEK FEED SCHEDULE: SOIL (mL per gallon) An 8 week liquid feed schedule used for: Soil, COCO, and Soil-less growing mediums. Click here to Download PDF |
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FUTURE HARVEST 8 WEEK FEED SCHEDULE: HYDRO (mL per gallon) An 8 week liquid feed schedule used for: a hydroponic growing system. Click here to Download PDF |
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FUTURE HARVEST 8 WEEK POWDER FEED SCHEDULE: SOIL (grams per gallon) An 8 week powder feed schedule used for: Soil, COCO, and Soil-less growing mediums. Click here to Download PDF |
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FUTURE HARVEST 8 WEEK POWDER FEED SCHEDULE: SOIL (tsp per gallon) An 8 week powder feed schedule used for: Soil, COCO, and Soil-less growing mediums. Click here to Download PDF |
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EASY PLUS SERIES APPLICATION GUIDE The Easy Plus Series application guide. Used for: Soil, COCO, and Soil-less growing mediums. Click here to Download PDF |
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EASY PLUS SERIES GROW GUIDE An easy to understand grow guide on using our Easy Plus Series powders. Click here to Download PDF |
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FUTURE HARVEST 8 WEEK AUTO-FLOWER FEED SCHEDULE An 8 week liquid feed schedule specifically designed for auto-flowering plants. Click here to Download PDF |
Take a look at our Media Kit. Loaded with all of our product photos, marketing materials, and our latest Product Catalogue!
If you are having troubles understanding the Feed Schedules, check out this Blog Article!

SAFETY DATA SHEETS / CERTIFICATES OF ANALYSIS
SDS | COA | LABEL / PDS | |
HOLLAND SECRET - MICRO | EN / FR | COA | LABEL / PDS |
HOLLAND SECRET - GROW | EN / FR | COA | LABEL / PDS |
HOLLAND SECRET - BLOOM | EN / FR | COA | LABEL / PDS |
CALNESIUM
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EN / FR | COA | LABEL / PDS |
PLANTACILLIN
|
EN / FR | COA | LABEL / PDS |
HARD WATER MICRO
|
EN / FR | COA | LABEL / PDS |
EASY GROW PLUS | EN / FR | COA | LABEL / PDS |
EASY BLOOM PLUS | EN / FR | COA | LABEL / PDS |
SUPER B+ | EN / FR | COA | LABEL / PDS |
ROYAL GOLD | EN / FR | COA | LABEL / PDS |
ROYAL BLACK | EN / FR | COA | LABEL / PDS |
PROP-O-GATOR | EN / FR | COA | LABEL / PDS |
CARBO BLAST | EN / FR | COA | LABEL / PDS |
BUD START | EN / FR | COA | LABEL / PDS |
TON O BUD | EN / FR | COA | LABEL / PDS |
BUD BOOM | EN / FR | COA | LABEL / PDS |
SILICA UP | EN / FR | COA | LABEL / PDS |
pH UP | EN / FR | COA | LABEL / PDS |
pH DOWN | EN / FR | COA | LABEL / PDS |
ORGANICAL MAGIC | EN / FR | LABEL / PDS | |
SURGE PLUS | EN / FR | COA | LABEL / PDS |
CARBO BLAST POWDER | EN / FR | LABEL / PDS | |
BUD START POWDER | EN / FR | LABEL / PDS | |
TON O BUD POWDER | EN / FR | LABEL / PDS | |
BUD BOOM POWDER | EN / FR | LABEL / PDS | |
PLANT FLUSH | EN / FR | LABEL / PDS | |
CITRIC DOWN | EN | LABEL / PDS | |
ISOPROPANOL 99% | EN | LABEL | |
H2O2 29% | EN | LABEL / PDS | |
SUCK IT UP | EN | LABEL | |
VEG BOOM PLUS | EN | LABEL | |
NUTRADIP pH4 | EN | LABEL | |
NUTRADIP pH7 | EN | LABEL | |
NUTRADIP 1000PPM | EN | LABEL | |
VGC - COMMON | EN | LABEL | |
VGC - GROW | EN | LABEL | |
VGC - BLOOM | EN | LABEL |