Everything to root cuttings and start young plants: the Propagator 64/50 heated propagator, CloneUp rooting gel, Clonex Mist spray, Plagron Seedbox and Eazy Plug trays with 77, 104 and 150 plugs. With air at 22–25 °C, the medium at 22–24 °C and 80–90% humidity, cuttings usually root in 7–14 days.
A propagator is a mini greenhouse with a clear lid and adjustable vents: it keeps humidity high around the cuttings, which absorb very little water until they have roots. In a room below 20 °C, as often in winter, you also need a heat mat, because warmth at the base speeds up root formation. The Propagator 64/50 in this collection comes with a heat mat controlled by thermostat or by dimmer: the thermostat keeps the medium temperature constant, while with the dimmer you set the power yourself and check with a thermometer.
Cuttings need high humidity in the first days and a gradual move to drier air as they root. The same values apply to freshly sprouted seeds in cubes or plugs.
| Parameter | Days 1–5 | Days 6–10 | After rooting |
|---|---|---|---|
| Relative humidity | 80–90% | 75–80% | 65–70% |
| Air temperature | 22–25 °C | 22–25 °C | 22–25 °C |
| Medium temperature | 22–24 °C | 22–24 °C | 20–24 °C |
| Light (18/6) | 80–150 µmol/m²/s | 100–200 µmol/m²/s | 200–300 µmol/m²/s |
| Lid vents | closed, air 1–2 times a day | half open | fully open, then lid off |
Mist the walls of the propagator, not the leaves, and keep the medium moist but not soaking. The light should be gentle: a T5 tube or an LED dimmed to 20–30%, hung higher than usual, is enough. Above 27 °C the risk of stem rot at the base rises.
Instead of plugs you can use Grodan rockwool cubes, soaked for about an hour in water at pH 5.5–6.0 before use. Seeds and cuttings started in plugs or cubes are then transplanted in the same way.
The first roots usually appear in 7–14 days, sometimes up to 21. Transplant when 3–5 roots grow out of the cube or plug, into a 0.5–1 litre pot or straight into the intermediate pot, without removing the cube. Water at the right pH and, if the medium is not pre-fertilised, with a little nutrient (EC 0.4–0.8 mS/cm). Suitable small pots are among the plant pots; for the next stage you need a grow tent and a dimmable light.
Every cutting has the same genetics as its mother plant.
Prices are in Swiss francs including Swiss VAT. We deliver across Switzerland by Swiss Post; bulky parcels travel by courier. For technical questions the Gro.w.LaB team answers by email and on +41 79 359 67 58, and you can visit the shop in Quartino by appointment.
Take 10–15 cm tips from a mother plant in the vegetative stage, recut them under water and dip the cut in rooting gel. Keep the air at 22–25 °C, the medium at 22–24 °C and humidity at 80–90%, with gentle light.
Yes, if the room stays below 20 °C, because seeds and cuttings want 22–25 °C. Use it with a thermostat, otherwise it can overheat and dry out the medium.
They do different jobs: CloneUp is a rooting gel applied to the cut, while Clonex Mist is a spray for the cuttings as they root. They can be used together.
80–90% for the first 5 days, 75–80% from day 6 to 10 and 65–70% after rooting, opening the vents a little at a time.
