Garland Super7 Electric Heated Windowsill Propagator G51

Product Information

The EarlyGrow Domed Propagator with 3 Height Extenders may not have the features of a heated or a self-watering propagator, but it does extra-large growing space and vertical height. Germinate all your seeds at the same time and then add on the extensions as the taller plants take off. The clear lid can handle any grow lights that you use for light and warmth – you just have to remember the watering schedule.

This model has an internal water reservoir and on top of this, there is a lining of capillary matting that attracts the water. The seed tray sits on top of this and the plants then draw water from the capillary matting as and when needed. As long as there is water in the tray, the plants can’t over or underwater themselves.This propagator is made up of 4 individual seed trays, as well as a heated base. While it requires a little more space than other units I’ve recommended, measuring 39 x 25 x 16cm, it still fits easily on most average window sills. Each tray measures 8.5 x 15.5cm, while the height of the lid is 8cm. This allows seedlings to grow tall and develop strong roots before replanting. Set the temperature that is required to promote plant growth if your heated propagator has a thermostat. 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 If you want to ensure a high yield of germinated seedlings, this 22W Stewart P035B Electric Propagator allows you to plant up to 144 seeds at a time, which can result in germinating at least 50 plants in one ‘round’. In this trial, I have compared simple heat mats that come with no trays or lids, trays that also come with nothing else, and complete windowsill kits. Some are not suitable for the home, but only practical for an unheated greenhouse.

The clear lid has two vents to open or close to control the temperature and humidity inside as your plants need. If you really need a self-watering propagator or your budget doesn’t stretch to a heated unit, consider an alternate form of heat and light. In the UK, if you don’t have a sunny and warm enough windowsill to germinate your seeds then you may need to consider a grow lamp, perhaps one on a timer so you don’t have to remember to put it on and off on the right schedule.The design itself is very simple. This unit consists of a heated tray with a ventilated plastic lid – you supply your own trays/pots, but it can fit 2 x 24-pot plant trays, so that gives you a good idea of its size in practical terms. 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. With seven individually-vented cells and a reasonable price tag, this Garland Super7 Electric Heated Windowsill Propagator offers good value for money. Despite having seven cells, it has a compact design enabling you to grow germinate multiple seed varieties in one go. Very handy! This depends on the plants you are trying to grow and the region that you are in. Some seeds require certain temperatures to germinate. Given the cold British weather, a heated propagator would be of service to you all year-round and can speed up the amount of time it takes for seeds to germinate and also the success rate. For example, peppers often germinate at a much faster rate in a heated propagator.