Secret Jardin – Heat Mat for Germination and Cuttings Rooting

Frequently asked questions

• What is the Secret Jardin heating mat used for?

  It goes under the tray or the propagator and raises the root ball temperature by a few degrees. That warmth in the substrate is what shortens germination time and improves the percentage of cuttings that root. It is intended for germination, rooting cuttings and mother plants.

• Why heat the substrate instead of the air?

  Because roots are not triggered by air temperature, they are triggered by substrate temperature. The mat heats from below, exactly where the root needs it, instead of wasting energy warming the whole space. That is why it is such an effective propagation tool.

• What size is it? Is it enough for a whole bench?

  It is the small tabletop format, meant for one propagation tray or a Dark Propagator tent, not to cover a whole bench. Secret Jardin does not publish the exact dimensions or the wattage of this mat. If you need a larger format, our catalogue includes the Neptune Hydroponics heating mat at 122 x 52.7 cm and 105 W.

• Can it be left on continuously?

  Yes, it draws very little power and is designed to stay on continuously throughout the propagation stage. That keeps the substrate at a steady temperature, which is exactly what seeds and cuttings want.

• How do you clean and look after the mat?

  Its surface is flat and waterproof, so it is easy to clean after each propagation run. Just remove any substrate and water residue and wipe it with a cloth. Keeping it clean between uses helps avoid hygiene problems in seedbeds and cuttings.

• How can I get my questions answered before buying?

  Our customer service team is available Monday to Friday from 10:00 to 19:00 to help you choose. When in stock, orders placed before 14:00 ship the same working day and arrive 1 to 3 working days later; the estimated delivery date is shown on the product page. You also have easy returns within 30 days, with secure payment by card, Bizum, PayPal or in instalments with Klarna or ViaBill.