--- product_id: 32343221 title: "- Flower Stacker, 0-7-5 Bloom Booster, Vitamin B1, 32 Ounce" brand: "humboldts secret" price: "€ 91.93" currency: EUR in_stock: true reviews_count: 8 category: "Humboldts Secret" url: https://www.desertcart.gr/products/32343221-flower-stacker-0-7-5-bloom-booster-vitamin-b1-32 store_origin: GR region: Greece --- # 0-7-5 NPK ratio for peak bloom pH stable, clean mixing formula Flexible dosing: 118-940 gal coverage - Flower Stacker, 0-7-5 Bloom Booster, Vitamin B1, 32 Ounce **Brand:** humboldts secret **Price:** € 91.93 **Availability:** ✅ In Stock ## Summary > 🌸 Stack Your Blooms, Not Your Worries — Bloom Bigger, Faster, Stronger! ## Quick Answers - **What is this?** - Flower Stacker, 0-7-5 Bloom Booster, Vitamin B1, 32 Ounce by humboldts secret - **How much does it cost?** € 91.93 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/32343221-flower-stacker-0-7-5-bloom-booster-vitamin-b1-32) ## Best For - humboldts secret enthusiasts ## Why This Product - Trusted humboldts secret brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Scalable for Any Grow:** 32 oz bottle covers 118 to 940 gallons, perfect for small setups or large operations. - • **Stress-Resilient Growth:** Vitamin B1 supports transplant recovery and helps plants thrive under heat and light stress. - • **Boost Yields by up to 30%:** Unlock denser, tighter flower clusters for standout aroma and vibrant color. - • **Precision Bloom Nutrition:** High phosphorus and potassium fuel rapid bud formation and resin-rich blooms. - • **Versatile & Clean Application:** Mixes fast, stays pH stable, and prevents buildup in soil, coco, hydroponics, and aquaponics. ## Overview Humboldts Secret Flower Stacker is a 32 oz liquid bloom booster with a 0-7-5 NPK ratio enriched with Vitamin B1. Designed for indoor and outdoor plants in soil, coco, hydroponics, and aquaponics, it enhances flower density and aroma by up to 30%, supports stress resilience, and offers flexible dosing for precise nutrient management across any grow scale. ## Description desertcart.com : Humboldts Secret Flower Stacker | 0-7-5 Bloom Booster with Vitamin B1 | High Phosphorus Potassium Flowering Nutrients | Potting Soil Hydroponics Coco | Indoor & Outdoor Plants | 32 Ounce : Patio, Lawn & Garden Review: Good product works great - Buy there's product that works really well Review: Blooming flowers - Seems very good hopefully so ## Features - Packaging Update: You may receive previous or updated packaging during our transition. Same formula, same performance. Bigger Denser Harvests: Our humboldts secret flower stacker 0 7 5 bloom additive helps plants increase yields by up to 30%, building tighter nodes and denser flower sites on indoor and outdoor plants in potting soil for standout aroma, rich color, and reliable bag appeal across every cycle. - Peak Bloom Nutrition: This concentrated flowering fertilizer delivers high phosphorus and potassium exactly during the bloom window to drive rapid bud formation, fuller calyx stacking, and enhanced resin and essential oils while supporting efficient nutrient uptake and balanced plant metabolism. - Simple Clean Application: Begin in week 3 of flower and use with every or every other watering; this dependable flower booster mixes fast, stays pH stable, and runs clean in soil, coco, hydroponics, and aquaponics, preventing buildup, line clogging, and downtime so your schedule stays consistent. - Stronger Stress Resilience: Our balanced flowering nutrients include Vitamin B1 to support transplant recovery, early establishment, and overall vigor, helping plants handle training, heat, and light intensity swings with confidence for a fuller, more uniform canopy from top to bottom. - Flexible Dosing And Compatibility: Designed to pair seamlessly with humboldt secret nutrients, the 32 ounce bottle mixes approximately 118 to 940 gallons depending on dilution, giving precise control for any plant count and grow method while preserving clean reservoirs and predictable results. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01DIAWP1U | | Best Sellers Rank | #11,223 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #391 in Garden Fertilizers | | Brand | Humboldts Secret | | Brand Name | Humboldts Secret | | Coverage | 30 | | Customer Reviews | 4.6 out of 5 stars 2,746 Reviews | | Item Form | Liquid | | Item Weight | 2 pounds | | Liquid Volume | 32 fluid ounces | | Manufacturer | Humboldts Secret | | Mixing Ratio | 118 to 940 gallons per 32 ounce bottle | | Part Number | 4316245519 | | Specific Uses For Product | Hydroponic,Plant Food | | Target Species | Plants | | UPC | 089902782559 | | Unit Count | 32 Fluid Ounces | ## Product Details - **Brand:** Humboldts Secret - **Item Weight:** 32 Ounces - **Item Form:** Liquid - **Liquid Volume:** 32 Fluid Ounces - **Specific Uses For Product:** Hydroponic,Plant Food ## Images ![- Flower Stacker, 0-7-5 Bloom Booster, Vitamin B1, 32 Ounce - Image 1](https://m.media-amazon.com/images/I/71sKpdVjY+L.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: what's in it?** A: Phosphate, soluble potash, vitamin b-1 **Q: Is this product organic** A: Hi, this would not be considered an organic product. **Q: would this work on cannabis** A: Works great for cannabis. Just follow the instructions I grow in 5 gallon hydroponic pots. I start adding flower stacker the 1st sign of buds. If you add too much to start it will burn and stunt your plants. **Q: can this be used with Bud Candy and micro chum from?** A: Yes, just be cautious as Flower Stacker is very concentrated ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good product works great *by A***R on August 13, 2026* Buy there's product that works really well ### ⭐⭐⭐⭐⭐ Blooming flowers *by A***J on July 23, 2026* Seems very good hopefully so ### ⭐⭐⭐⭐⭐ love *by J***I on February 12, 2026* This Bloom Booster with Vitamin B1 is fantastic! It’s helped my plants produce stronger blooms and healthier foliage—everything looks more vibrant and lush. The added Vitamin B1 seems to reduce transplant shock and supports overall plant vigor, especially when introducing new plants to the garden. It’s easy to mix and apply with my watering routine, and I’ve noticed that flowers stay fuller and more abundant throughout the season. The formula feels high‑quality and effective without being overly complex. If you want a reliable way to promote better flowering and stronger, healthier plants, this bloom booster is an excellent choice. Highly recommend! ## Frequently Bought Together - Humboldts Secret Flower Stacker – Best Flowering Formula for Bigger Harvests - Flowering Plant Food - Nutrient System for Potting Soil for Indoor Plants & Outdoor Plants - 1 Quart - Humboldts Secret Sweet & Sticky – Carbohydrate and Saccharide Energy Source – Enhance Aroma and Flavor of Plants – Potting Soil for Indoor Plants – Energy for Plants – 32 Ounces - Humboldts Secret Golden Tree: Best Plant Food for Plants & Trees - All-in-One Concentrated Additive - Vegetables, Flowers, Fruits, Lawns, Roses, Tomatoes & More (16 Ounce) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.gr/products/32343221-flower-stacker-0-7-5-bloom-booster-vitamin-b1-32](https://www.desertcart.gr/products/32343221-flower-stacker-0-7-5-bloom-booster-vitamin-b1-32) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-08-28*