A lower-wattage propagator will heat up more slowly, but cost less to run, than a higher-wattage unit. This propagator comes with a power cord, although at 2m it may be a little short. Using it with an extension cable may be necessary.

Generally, a height of around 20 cm will allow enough space for your seedlings to establish properly, giving them enough time to grow good roots and 3 – 4 full leaves before having to transplant them. To allow adequate space for seedlings to establish, the best propagator will be around 15 – 20 cm in height . Ideally, you want to be looking for a propagator with a wattage of around 13 – 22 W . This will provide sufficient heat for seedlings without being too costly to run. Optimal soil temperature for germination is 10 – 15°C so the propagator needs enough power to maintain this.

Stewart 38cm Premium Propagator Lid

If you find one of our competitors selling the same product which we sell at a lower price than our price then we will endeavour to match their price! A heated propagator creates an environment that’s just a few degrees above air temperature, forming conditions that help many seeds to germinate. The best part is that they cost just a few pence a day to run. Also, the cells can be prone to a condensation build up, even when the vents are open. I suppose though this is just what happens when you mildly heat something and contain it! Over time I’ve learnt that by switching the unit off and giving the cells a bit of breather everything clears up nicely. With this propagator, it’s possible to grow a range of worldwide plants from your home, greenhouse, or indoor grow space. Mimic the Mediterranean: if only it were that easy… As I’ve already mentioned, this propagator is high performing, boosting the temperature by 8-10°C. The heat distributed is evenly spread across the base thanks to the reliable carbon fibre element, while the growing conditions can be controlled using individual vents across the 4 seed trays.

Large, one-cell units that measure around 52 x 45 cm can be used to try to germinate around 140 seeds. They’re often big enough to fit 2 x 24-pot seed trays, and if you get 3 seeds in each pot, this can mean the potential to plant 144 seeds. So I put some moist sand in the bottom with the sowed seed trays on top of the sand, put the lid on, closed the vents in the lid and set the temp for 20C. It's in the house on a table. I switched it on but the base didn't get warm. I left it a good few hours. The number of compartments will allow you to grow several types of different types of seeds; you can adjust the soil type and environment to suit the individual seed. With this propagator it’s possible to grow a range of worldwide plants from your home greenhouse or indoor grow space. Mimic the Mediterranean: if only it were that easy…Having a propagator with separate ‘cells’ will mean you can choose to ventilate certain cells and not others which allows you to adjust the environment to the individual seed. You can be completely secure in the knowledge that nothing passed to SagePay can be examined or decrypted including transaction information and/or cardholder data by any third parties, staff within our company or by SagePay. Gentle heat from the base warms compost evenly stimulating germination and rooting. The built-in thermostat maintains soil temperature between 18ºC and 23ºC. Warm air is trapped under the ridged clear cover to maintain a moist atmosphere, and protect developing plants from draughts and drying out. Then, you’ll need to multiply the wattage of the propagator by the number of hours it’ll be used each day. Divide this number by 1000 and multiply by 14 (or your specific kWh rate). Measuring just 76 x 18.4 x 15.2cm, this propagator fits most average windowsills. Each tray comes with a transparent lid so you can easily monitor the progress of your seedlings, while the air flow and temperature can be controlled using the red vents on each lid.

There was only one way to test the EarlyGrow 3-Bay Heated Electric Propagator! I took my kids to our local garden centre, where they chose a small variety of fruit and vegetable seeds they wanted to grow. I tried to guide them within the suggested ‘germination months’, but they were naturally drawn to the strawberries! Hey, might as well give it a try right?! So we planted strawberry, peas, and giant pepper seeds. My boys ready for some planting! Young plants are particularly susceptible to difficult climates, and need a consistent temperature to reach their peak. Germination only occurs when a plant has adequate moisture and warmth. For example, if you run a propagator of 100 W for an hour, at this rate, it will cost you 1.4p for that hour. A propagator of 50 W will cost 0.7p for an hour. And a propagator of 22 W will cost you 0.3 p per hour. The EarlyGrow 3-Bay Heated Electric Propagatoris impressively simple to use, yet cleverly designed. It’s got three well-sized “cells” that sit on top of a reservoir in the base of the unit. Fill it with water, set up the absorbent material over the base, turn it on and you’re good to go!The idea of adding a propagator to your house might seem daunting – doesn’t it cost a lot of money to have a heat source on for a long time? The trays are very small, measuring just 14 x 7cm at the base. This makes them suitable for those who want to grow a small amount of each plant, although the trays are still deep enough for your plants to develop strong roots. Having an idea about the length of the propagator’s mains cable before purchasing is also a good plan. Some propagators have short cables of 1 m, whilst others are slightly longer at between 2 and 3 m. Depending on where you have a power outlet, either in the house or greenhouse, you may have to use an extension cable. Lid Height for Better Growth First, you will need to know how much your energy provider charges per kilowatt-hour. Let’s say they charge 14p per kWh (a relatively standard rate in the UK).

So I'm having a spot of bother and I'm wondering if anyone can advise me. I'm a beginner with this bit of kit which is the Stewart Heat and Grow Variable Temperature Electric Propagator - just in case anyone else has got the same one. Note: Do not place the propagator where the base or wiring could become wet - This product is not intended for outdoor use (Greenhouses are suitable). Young plants are particularly susceptible to difficult climates and need a consistent temperature to reach their peak. Germination only occurs when a plant has adequate moisture and warmth. In terms of performance, this propagator can be used to grow a wide variety of seeds. It comes with a 13W carbon fibre element that provides an even heat distribution, raising the temperature by around 8°C. Having said that, it’s still best installed on a sunny windowsill if you’re growing plants that prefer a lot of warmth.For many plants growing outside in cold climates can hinder growth before it’s even started. Non-native fruits and vegetables such as tomatoes and peppers aren’t used to UK climates and require much more warmth than we have to offer. To give an idea of size: there are units that are small enough to fit onto windowsills, whilst others will need to be placed on a table/worktop/greenhouse shelf.