Give seeds, cuttings and young plants a warmer propagation environment with these seedling heat mats, available in three sizes to suit different trays and growing areas. The mats are designed to raise the temperature around the growing area above ambient conditions, supporting more consistent germination and early plant growth.
Heat mats warm the area by 10 to 20°C above ambient temperature, although actual root-zone temperature depends on the surface beneath the mat and surrounding conditions. Durable, waterproof construction makes the mats practical for propagation areas and easy to clean.
For greater temperature control, pair the mat with a digital thermometers and monitor the growing medium rather than relying solely on ambient temperature.
Don't cover the heat pad entirely as the heat must be allowed to diffuse.
Ideal For:
Seed starting and propagation
Growing seedlings during cooler conditions
Raising chilli and other warmth-loving seeds
Propagating plant cuttings
Home growers using propagation trays
Grow rooms and controlled propagation areas
Temperature and Propagation Guide:
Monitor the growing medium - Root-zone temperature varies according to the surface beneath the mat and ambient temperature.
Typical target range - Temperature should be 19 to 24°C for tomatoes, tobacco and most other plants.
For hot chilli seeds - The supplied guidance states that hot chilli seeds may prefer approximately 30°C.
Reduce excessive heat when required - Place a spacer between the mat and propagation tray to adjust the temperature.
Allow heat to dissipate - Do not completely cover the heat mat, as heat needs to diffuse away from the surface.
Use temperature monitoring - A digital thermometer or suitable thermostat can help prevent the growing medium from becoming too hot.
