--- product_id: 49581283 title: "Additive Flowering Stimulator HESI Boost (1L)" brand: "hesi" price: "Β£23.94" currency: GBP in_stock: true reviews_count: 8 category: "Hesi" url: https://www.desertcart.co.uk/products/49581283-additive-flowering-stimulator-hesi-boost-1l store_origin: GB region: United Kingdom --- # Concentrated fruit enzymes & B vitamins 1% Potassium & Phosphorus boost Universal use in Soil, Coco & Hydro Additive Flowering Stimulator HESI Boost (1L) **Brand:** hesi **Price:** Β£23.94 **Availability:** βœ… In Stock ## Summary > 🌿 Boost your blooms, taste the difference! ## Quick Answers - **What is this?** Additive Flowering Stimulator HESI Boost (1L) by hesi - **How much does it cost?** Β£23.94 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/49581283-additive-flowering-stimulator-hesi-boost-1l) ## Best For - hesi enthusiasts ## Why This Product - Trusted hesi brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Bloom Like a Pro:** Activates and strengthens flowering for bigger, denser blooms. - β€’ **Easy Integration:** Use every 3 days during flowering for accelerated yields. - β€’ **Power-Packed Formula:** Infused with essential minerals and B vitamins for plant vitality. - β€’ **Sweeten Your Harvest:** Increases sugar content to enhance fruit flavor and aroma. - β€’ **Versatile Growth Partner:** Compatible with all growing mediums and nutrient lines. ## Overview HESI Boost is a 1L liquid additive designed to enhance flowering and fruit development by delivering a precise blend of potassium, phosphorus, essential minerals, fruit enzymes, and B vitamins. Suitable for all growing mediums and nutrient programs, it accelerates flower production, improves plant strength, and elevates fruit sweetness and flavor, making it a must-have for serious gardeners aiming for premium yields. ## Description Product description Hesi Boost is a bloom activator and a gentle leaf fertiliser for the flowering stage of plant development. This new product strengthens the flowering, increases the sugar content and improves the condition of the entire plant. Suitable for use in all forms of growing medium (Soil, Coco and Hydro). Hesi Boost is not nutrient specific and can be used with all nutrients, although for best results we recommend using in conjunction with the Hesi range of nutrients. Hesi Boost is a popular bloom stimulator and flowering promoter designed for use during the productive stage of the plant life cycle. Made from a mixture of concentrated fruit enzymes, Hesi Boost contains the elements potassium (1%), phosphorous (1%), calcium, iron, magnesium, copper, molybdenum, zinc, and selenium. As well as these elements, Hesi Boost also contains a mixture of B vitamins (B1, B3, and B6), sugars, and enzymes. All these ingredients combined results in an effective flower and fruit booster that enhances the overall size, sweetness, and flavour of your fruits. Although not an β€˜essential’ fertiliser, Hesi Boost has many beneficial effects, from strengthening your plants so they can support more flowers to accelerating growth and promoting the development of denser flowers and fruits. It is also a versatile additive that can be used alongside all bloom nutrient and fertiliser programs, although we recommend using this product with other fertilisers and additives in the Hesi range for best results. Hesi Boost can be used on all plants and with all substrates (soil, coco, or hydro). Key features of Hesi Boost include: Effective fertiliser additive for productive phase Careful mix of elements, vitamins, sugars, and enzymes Accelerates flower and fruit production Increases yields and enhances fruit flavours Can be used on all plants and with all substrates Directions Shake the bottle well before use. Add 2.5 ml of Hesi Boost per 1 liter of nutrient solution. Use Hesi Boost once every 3 days during the flowering phase. Safety Warning Shake the bottle well before use. Add 2.5 ml of Hesi Boost per 1 liter of nutrient solution. Use Hesi Boost once every 3 days during the flowering phase. Review: Good taste - Very impressed with all hesi Review: HESI IS THE BEST THAT YOU CAN BUY - EXCELLENT THE BEST!!!!! ## Features - Hesi - Boost 1 L ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00KC9LNGY | | Best Sellers Rank | 129,244 in Garden ( See Top 100 in Garden ) 2,223 in Garden Fertilisers 9,777 in Plant Containers & Accessories | | Brand | Hesi | | Brand Name | Hesi | | Coverage | Medium | | Customer Reviews | 4.7 out of 5 stars 659 Reviews | | Global Trade Identification Number | 08718924651643 | | Item Form | Liquid | | Item form | Liquid | | Liquid Volume | 1 Litres | | Liquid volume | 1 Litres | | Manufacturer | Hesi | | Mixing Ratio | 1:100 | | Model Number | 0-1-1 | | Number of Items | 1 | | Part Number | part_B00KC9LNGY | | Specific Uses For Product | Tomatoes | | Specific uses for product | Tomatoes | | Target Species | orchids | | UPC | 701806689047 700161574104 | | Unit Count | 1000.0 millilitre | ## Product Details - **Brand:** Hesi - **Item form:** Liquid - **Coverage:** Medium - **Liquid volume:** 1 Litres - **Mixing ratio:** 1:100 ## Images ![Additive Flowering Stimulator HESI Boost (1L) - Image 1](https://m.media-amazon.com/images/I/51Cyv-SSJHL.jpg) ![Additive Flowering Stimulator HESI Boost (1L) - Image 2](https://m.media-amazon.com/images/I/41hxc4dAl7L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good taste *by A***A on 18 May 2021* Very impressed with all hesi ### ⭐⭐⭐⭐⭐ HESI IS THE BEST THAT YOU CAN BUY *by A***R on 7 January 2017* EXCELLENT THE BEST!!!!! ### ⭐⭐⭐⭐⭐ Five Stars *by C***G on 15 December 2015* my babys love this stuff --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/49581283-additive-flowering-stimulator-hesi-boost-1l](https://www.desertcart.co.uk/products/49581283-additive-flowering-stimulator-hesi-boost-1l) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-30*