A propagator is basically a box, usually with a clear lid – a mini greenhouse – in which to sow and germinate seeds. Some propagators are essentially seed trays with clear lids, while others are more sophisticated, even incorporating a heating pad to gently warm the soil, aiding with swift and vigorous germination. Here at Dobbies, we also offer pots with specially designed clear bell jars which fit over the top, garden cloches, cold frames, and more. Propagators are a great way to germinate seeds at any time of year and also help to ensure that more of the seeds you sow germinate and grow.