{"product_id":"stewarts-large-variable-heated-propagator","title":"Stewarts Large Variable Heated Propagator – With Thermostat","description":"\u003ch2\u003eChoose the Exact Base Temperature for Every Batch of Seeds and Cuttings\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eStewarts Large Variable Heated Propagator\u003c\/strong\u003e adds a \u003cstrong\u003eremote thermostat\u003c\/strong\u003e to Stewart's large heated propagator, so you set the base heat yourself anywhere from \u003cstrong\u003e12°C to 28°C\u003c\/strong\u003e. A long-life \u003cstrong\u003e8 watt heater\u003c\/strong\u003e warms the compost evenly, the clear vented cover holds in humidity, and the \u003cstrong\u003e52 x 41.5 x 28 cm\u003c\/strong\u003e base takes a good batch of seed trays, pots or cuttings.\u003c\/p\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeated propagator base\u003c\/strong\u003e with remote thermostat and fitted UK plug\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eClear vented propagator cover\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStarter kit\u003c\/strong\u003e - 10 pots, 1 large seed tray and 2 small seed trays\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrowing booklet\u003c\/strong\u003e on raising plants from seeds and cuttings\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKey Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable 12-28°C\u003c\/strong\u003e - match the heat to what you are growing rather than accepting one fixed setting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemote thermostat dial\u003c\/strong\u003e - change the temperature without lifting the cover or disturbing the trays\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJust 8 watts\u003c\/strong\u003e - less than an ordinary light bulb, about 0.19 kWh over a full 24 hours\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge 52 x 41.5 cm base\u003c\/strong\u003e with a clear cover and adjustable vents for light and humidity control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReady to start\u003c\/strong\u003e - pots, seed trays and a fitted plug in the box\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhy Do Seeds and Cuttings Stall in a Cold Room?\u003c\/h3\u003e\u003cp\u003eMost propagation failures come down to a \u003cstrong\u003ecold root zone\u003c\/strong\u003e. On a windowsill or greenhouse bench the compost cools every night, so germination is slow and patchy and cuttings sit for weeks without rooting. Seeds and cuttings also want different warmth, and a thermostat holds each batch at its own temperature for faster, more even germination and stronger \u003cstrong\u003eroot development\u003c\/strong\u003e, so young plants cope better with \u003cstrong\u003etransplant shock\u003c\/strong\u003e.\u003c\/p\u003e\u003ch3\u003eHow to Use\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSet up\u003c\/strong\u003e the base on a level surface in good light and fill the trays or pots with seed compost, plugs or cubes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSet the thermostat\u003c\/strong\u003e to the temperature your seeds or cuttings need, between 12°C and 28°C, and let the base warm up before sowing sensitive seed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFit the cover\u003c\/strong\u003e with the vents mostly closed to hold humidity while seeds germinate and cuttings root.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpen the vents\u003c\/strong\u003e gradually as seedlings emerge or cuttings take, then lower the temperature or remove the cover to harden them off before potting on.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv class=\"hcs-specs\"\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Stewart\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e Large Variable Heated Propagator (HydroGarden 12-550-075)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 52 x 41.5 x 28cm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature range:\u003c\/strong\u003e 12-28°C, set by remote thermostat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeater:\u003c\/strong\u003e 8W long-life heating element in the base\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e mains, fitted UK plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCover:\u003c\/strong\u003e clear rigid cover with adjustable vents\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded:\u003c\/strong\u003e 10 pots, 1 large seed tray, 2 small seed trays, growing booklet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse:\u003c\/strong\u003e seed germination and rooting cuttings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cdiv class=\"hcs-faq\"\u003e\n\u003cdetails style=\"border:1px solid #e6e6e6;border-radius:8px;padding:12px 16px;margin:0 0 8px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;\"\u003eHow is this different from the standard Stewarts Large Heated Propagator?\u003c\/summary\u003e\u003cp style=\"margin:10px 0 0;\"\u003eThe standard model has a fixed heater with no control. This one has a remote thermostat, so you choose the temperature between 12°C and 28°C, and it comes with a starter kit of pots and seed trays.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #e6e6e6;border-radius:8px;padding:12px 16px;margin:0 0 8px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;\"\u003eHow much does it cost to run?\u003c\/summary\u003e\u003cp style=\"margin:10px 0 0;\"\u003eThe heater is rated at 8 watts, so even running around the clock it uses about 0.19 kWh a day (8W x 24 hours).\u003c\/p\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #e6e6e6;border-radius:8px;padding:12px 16px;margin:0 0 8px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;\"\u003eWhat goes inside it?\u003c\/summary\u003e\u003cp style=\"margin:10px 0 0;\"\u003eStewart's starter kit of 10 pots, one large and two small seed trays is in the box. It also takes peat plugs, propagation cubes or your own seed trays and pots, as long as they fit the 52 x 41.5 cm base.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #e6e6e6;border-radius:8px;padding:12px 16px;margin:0 0 8px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;\"\u003eCan I use it for cuttings as well as seeds?\u003c\/summary\u003e\u003cp style=\"margin:10px 0 0;\"\u003eYes. Set a gentler temperature for cuttings, keep the vents closed while they root, and open them as new growth appears.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/div\u003e\u003ch3\u003eWorks Well With\u003c\/h3\u003e\u003cdiv class=\"hcs-related\" style=\"display:flex;flex-wrap:wrap;gap:10px;margin:12px 0 0;\"\u003e\n\u003ca href=\"\/products\/jiffy-propagation-plug\" style=\"flex:1 1 240px;display:flex;align-items:center;gap:12px;padding:10px 12px;border:1px solid #e6e6e6;border-radius:8px;text-decoration:none;color:inherit;background:#fff;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/jiffy-7-plugs-close-medium_landscape.jpg?v=1746904152\u0026amp;width=160\" alt=\"Jiffy Propagation Plug\" width=\"64\" height=\"64\" loading=\"lazy\" style=\"width:64px;height:64px;object-fit:contain;flex:none;\"\u003e\u003cspan style=\"font-size:14px;line-height:1.4;\"\u003e\u003cstrong style=\"display:block;\"\u003eJiffy Propagation Plug\u003c\/strong\u003e\u003cspan style=\"color:#008d37;\"\u003ePeat plugs to sow or root straight into\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"\/products\/root-riot-organic-propagation-cubes\" style=\"flex:1 1 240px;display:flex;align-items:center;gap:12px;padding:10px 12px;border:1px solid #e6e6e6;border-radius:8px;text-decoration:none;color:inherit;background:#fff;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/Root-Riot-24-Tray-1-medium_landscape.jpg?v=1746904158\u0026amp;width=160\" alt=\"Root Riot Organic Propagation Cubes\" width=\"64\" height=\"64\" loading=\"lazy\" style=\"width:64px;height:64px;object-fit:contain;flex:none;\"\u003e\u003cspan style=\"font-size:14px;line-height:1.4;\"\u003e\u003cstrong style=\"display:block;\"\u003eRoot Riot Organic Propagation Cubes\u003c\/strong\u003e\u003cspan style=\"color:#008d37;\"\u003eReady-made cubes for seeds and cuttings\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"\/products\/clonex-rooting-gel\" style=\"flex:1 1 240px;display:flex;align-items:center;gap:12px;padding:10px 12px;border:1px solid #e6e6e6;border-radius:8px;text-decoration:none;color:inherit;background:#fff;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/clonex-rooting-gel.jpg?v=1787265098\u0026amp;width=160\" alt=\"Clonex Rooting Gel\" width=\"64\" height=\"64\" loading=\"lazy\" style=\"width:64px;height:64px;object-fit:contain;flex:none;\"\u003e\u003cspan style=\"font-size:14px;line-height:1.4;\"\u003e\u003cstrong style=\"display:block;\"\u003eClonex Rooting Gel\u003c\/strong\u003e\u003cspan style=\"color:#008d37;\"\u003eRooting hormone for faster-rooting cuttings\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e","brand":"Stewarts","offers":[{"title":"Default Title","offer_id":53930943381770,"sku":"PRP-STEW-004-01","price":133.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/stewarts-large-variable-heated-propagator-default-title-1.jpg?v=1792288552","url":"https:\/\/hydrocropshop.co.uk\/products\/stewarts-large-variable-heated-propagator","provider":"Hydro Crop Shop","version":"1.0","type":"link"}