The XL High Domed Propagator has a clear cover featuring adjustable vents to control the humidity and temperature. Our largest unheated propagator and to our knowledge the largest injection moulded propagator on the UK market.
The base tray does not feature drainage holes, given that most users opt to fill the unit with smaller trays or pots or multi cell inserts. The unit is easily large enough to accommodate the 'Grodan 77' and 'Jiffy 60' cell inserts which are so popular with keen growers.
Size: 58cm x40.5cm x22.5cm
Using a propagator is one of the best ways to jumpstart seed germination, especially early in the growing season. Young seedlings are delicate and easily affected by sudden changes in temperature or humidity. A propagator provides a safe, stable environment, giving your seeds the best chance to sprout and thrive.
Essentially, a propagator functions like a mini greenhouse. It’s often made of plastic and features ventilation systems that let you control the airflow and temperature inside. With this controlled setup, your seeds can develop strong roots and healthy shoots. For added support, many garden supply stores offer other propagation tools to enhance your setup.
To help your seeds germinate and grow successfully, focus on these three core elements:
Seedlings rely on consistent light to grow strong and upright. Place your propagator in an area with as much natural light as possible throughout the day. To prevent your seedlings from bending or stretching toward the light, rotate the propagator regularly.
If natural light is limited, consider using grow lights to ensure the seedlings receive even illumination.
Seedlings need just the right amount of moisture. The compost should feel slightly damp but never soggy, as excess water can cause rot or mold. Let the surface dry out slightly between waterings to avoid oversaturation.
For added convenience, some propagators come with capillary mats that allow seedlings to absorb water from below as needed. Check the moisture levels in your propagator daily, and water only when necessary to keep your seeds healthy.
Temperature plays a critical role in germination. Seedlings need a warm, draft-free environment to grow well. Aim to keep the temperature between 18°C and 25°C, though you should always check the specific needs listed on your seed packets.
Position your propagator somewhere warm, like a sunny windowsill or near a gentle heat source, to maintain a consistent temperature.
Use a thermometer to take the soil temperature.
