{"product_id":"avalution-vermiculite-18qt-horticultural-coarse-soil-additive-moisture-retentive-aeration-boosting","title":"Avalution Vermiculite 18QT Horticultural Coarse Soil Additive — Moisture-Retentive, Aeration-Boosting","description":"\u003cp\u003e\u003cstrong\u003eAvalution 18QT Vermiculite is a lightweight, absorbent mineral soil additive that improves aeration, moisture retention, and root development for potted plants, seedlings, and soilless mixes.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWhether you're blending your own potting soil, starting seeds, transplanting seedlings or adding a moisture-stable component to a soilless medium, this coarse horticultural vermiculite is formulated to balance drainage with water-holding capacity. Avalution 18QT is expanded and sponge-like, easy to mix into peat, compost, or perlite, and suited to a broad range of indoor and outdoor growing tasks without altering the intended nutrients of your mix.\u003c\/p\u003e\n\n\u003ch3\u003eHow will this vermiculite change my potting mix performance?\u003c\/h3\u003e\n\u003cp\u003eAvalution vermiculite adds both porosity and moisture retention, creating a stable environment where roots can access oxygen and water. It loosens dense soils while holding water that slowly becomes available to plants, reducing the frequency of light watering and helping seedlings establish.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eImproves aeration and reduces compaction for healthier root growth.\u003c\/li\u003e\n  \u003cli\u003eStores water in its sponge-like structure to supply steady moisture.\u003c\/li\u003e\n  \u003cli\u003eWorks well blended with peat moss, compost, or perlite for custom mixes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan I use this vermiculite for seed starting and transplanting?\u003c\/h3\u003e\n\u003cp\u003eYes—Avalution 18QT is commonly used for seed trays, cuttings, and transplant mixes because of its fine to coarse texture that supports delicate roots. It encourages root contact and stability without adding nutrients, so it pairs easily with your chosen fertilizers or starter solutions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCreates a light, supportive medium that helps seedlings take root.\u003c\/li\u003e\n  \u003cli\u003eReduces transplant shock by keeping moisture consistent around roots.\u003c\/li\u003e\n  \u003cli\u003eMixes with sterile media for hygienic seed propagation and cuttings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs vermiculite suitable for soilless and hydroponic systems?\u003c\/h3\u003e\n\u003cp\u003eAvalution vermiculite can be incorporated into soilless blends and some hydroponic setups as a moisture-retentive component. It does not supply nutrients itself, so when used hydroponically you should provide a balanced nutrient solution appropriate for the crop.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eActs as a water-holding additive in soilless mixes for stable moisture delivery.\u003c\/li\u003e\n  \u003cli\u003eUseful with hydroponic substrates when combined with nutrient solutions.\u003c\/li\u003e\n  \u003cli\u003eHelps with propagation and temporary support for transplants in hydro systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does Avalution vermiculite affect soil pH and structure?\u003c\/h3\u003e\n\u003cp\u003eVermiculite is largely neutral and mainly changes the physical properties of soil rather than its chemistry. Adding it improves soil structure, increases permeability, and can help moderate overly acidic conditions toward neutrality when used as part of a broader soil amendment program.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNeutral mineral that improves texture without introducing strong acidity.\u003c\/li\u003e\n  \u003cli\u003eReduces crusting and compaction in heavy garden soils.\u003c\/li\u003e\n  \u003cli\u003eSupports long-term structural improvements when mixed into beds or pots.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Avalution 18QT Vermiculite is aimed at home gardeners, indoor growers, nursery operators, and hobbyists who build custom potting mixes, start seeds, or need a lightweight, moisture-retentive amendment. It is particularly useful for anyone transplanting seedlings, propagating cuttings, or creating consistent soilless blends that require reliable water retention and improved aeration without added nutrients.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How much vermiculite should I mix into potting soil?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Use 10–50% vermiculite depending on desired moisture retention and aeration—lower for cacti, higher for seed starting.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is Avalution vermiculite safe for indoor plants and mushrooms?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It's an inert, natural mineral used in potting and propagation; pair with appropriate sterile practices for mushrooms.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Avalution","offers":[{"title":"Default Title","offer_id":56831323406676,"sku":"B0CMCL229B","price":74.18,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/avalution-18qt-vermiculite-front-bag.jpg?v=1787013967","url":"https:\/\/gardenluxe.co.uk\/products\/avalution-vermiculite-18qt-horticultural-coarse-soil-additive-moisture-retentive-aeration-boosting","provider":"Gardenluxe Uk","version":"1.0","type":"link"}