Cloning

Our cloning and germination range

Successful plant propagation begins with the right equipment and controlled environmental conditions. At Plant & Flower, your Belgian grow shop since 2011, you'll find everything needed for cloning cuttings and germinating seeds: humidity domes, heat mats, rooting hormones and dedicated substrates. Pair them with reliable climate control to give young plants the strongest possible start — the first weeks determine the health of your entire crop.

Reliable propagation: the four pillars

Propagation is the most delicate phase of any grow cycle. Cuttings lack roots to absorb water and depend entirely on atmospheric moisture; seeds need consistent warmth and humidity to break dormancy. Four factors work together to create the ideal microclimate: humidity (dome), warmth (heat mat), auxins (rooting hormone) and substrate that retains water without suffocating emerging root tips.

Target values for high success rates

• Substrate temperature: 22-25 °C (thermostat-controlled heat mat)
• Relative humidity: 70-80 % under the dome
• pH for pre-soaked substrate: 5.5 (slightly acidic water)
• Light period: 18 hours of soft light, never under a direct HPS lamp
• Light distance: 30-40 cm above the tray (fluorescent or low-wattage LED)
• Average rooting time: 7-14 days depending on variety

Domes, heat mats, hormones and media

Humidity domes maintain 70-80 % RH around cuttings, preventing them from wilting before roots form. The Secret Jardin Propagator range features adjustable vents and reflective interiors that distribute light evenly across the tray. For seeds, the Plagron Seedbox bundles everything needed to germinate in a controlled environment, while the heated Garland propagator builds the heating element directly into the base — no separate mat required.

On the substrate side, Grodan rockwool plates (150 cells) offer excellent water retention with good air porosity; pre-soak them in pH-adjusted water at 5.5 before use. Root Riot cubes (100-pack) are a compact organic alternative, pre-moistened and ready to use straight from the bag. Jiffy peat pellets and coco plugs round out the range. Apply rooting hormone immediately after a clean 45 ° cut, then combine with quality growing media for best results.

After rooting: hardening off and transplanting

After 7-10 days, gently tug on the cuttings: if they resist, roots have formed. Open the dome vents gradually over 2-3 days to harden plants off before transplanting to pots with a mild nutrient solution for young plants (EC max 0.8-1.0). Avoid bloom or growth boosters too early: up to the third set of true leaves, roots are still fine and sensitive to over-fertilisation.

FAQ - Frequently asked questions about cloning and germination

Explore our complete range of cloning and germination supplies at Plant & Flower. With fast, discreet delivery throughout Belgium, you can start your next propagation project without delay.