Anzucht von Stecklingen unter LED

Sowing and growing cuttings

In our instructions you will learn everything you need to know in order to in the shortest time healthy and strong cuttings from seeds.

We have also made a live Q&A session on this, demonstrating what is explained on this page. The demonstration starts from minute 03:30:

Week 1: the sowing ("pre-sprouting")

In this tutorial, the seeds are pre-sprouted between two wet cloths. There are other methods, but this method is very reliable and simple. If you are unsure, then we definitely recommend this method.

With proper use and fresh seeds of good quality, pre-germination can be very fast (a few days). If your seeds are a bit older, this step can take up to 2-3 weeks.

Required utensils:

  • Seeds
  • Household towels ("kitchen crepe")
  • 2 small, flat plates
    (if different varieties are to be grown, it is recommended to separate them already now and label them from the beginning)

Procedure:

  1. Place a layer of household towels well moistened with water on the plate.
  2. Carefully spread the seeds on them.
  3. Moisten another layer of household towels and cover the seeds with it.
  4. Let excess water drip off.
  5. Cover with the second plate so that the moisture is retained. (Light is not needed for your seeds to germinate)

Your seeds will germinate fastest at about 21-23 degrees. You should not expose them to direct light and let them germinate must never dry out. Always keep the household towels damp, but not wet. The seeds should not "float" in the water. It may take about 2-10 days for the seed to germinate, depending on the quality of the seed.

Tip from Grow Guru: Germination - and all other subsequent steps - may take a little longer or shorter depending on the variety and environment. This is normal! But if your seeds have not germinated after 2-3 weeks, then they have probably dried out.

Sowing on damp kitchen paper:

Samen Aussaat

The seeds are covered with a damp kitchen paper:

Die Samen werden mit einem feuchten Küchenpapier bedeckt:

The seeds are covered with a plate and marked:

Die Samen werden mit einem Teller bedeckt und beschriftet

Week 2: planting the seedlings

Fresh seeds no usually immediately and after a few days you will already see a small piece of root protruding from the seed:

Nach einigen Tagen keimen die Samen

When the first millimeters of the root protrude from the seeds, you should soon planting in source pots. If you wait too long to plant now, the roots will bind with the kitchen paper, making it very difficult to handle later.

What are seedpots? Swelling pots are small cubes, usually made of coconut fiber or rockwool. They offer your seedlings the optimal conditions, because they store moisture very well and are otherwise neutral, i.e. they contain no nutrients. Your plants do not need nutrients until the next step.

For optimal growing conditions for seedlings you need a greenhouse. Equipped with a suitable heating mat you have both the temperature and humidity under control

A tip from Grow Guru: Seedlings are very delicate and should be handled carefully (!) with tweezers or sterile gloves. Be careful not to damage or crush the root. Gently grab the seedlings by the seed coat. Never pull on the root, it tears off easily.

Utensils needed:

  • Spring pots
  • Pricking stick
  • Indoor greenhouse with heating mat
  • Hygrometer
  • Lighting

Procedure:

  1. Allow the source pots to swell according to instructions and carefully squeeze out excess water.
  2. Place the pots in the propagator.
  3. Use the pricking rod to widen the already existing well in the source pot (approx. 2-6mm deep).
  4. Carefully place the seeds in the well and cover with some substrate.
  5. Close the greenhouse and place it on the heating mat

From now on in your greenhouse you must check the climate several times a day. To control the temperature and humidity in the greenhouse, we recommend using a hygrometer. The source pots must not dry out. It is best to use a water sprayer to water the source pots.

Here you can see dry pots as they come out of the package. For swelling please follow the instructions that come with the pots:

Trockene Quelltöpfe, so wie sie aus der Packung kommen

After swelling, the swelling pots are ready to receive seedlings:

Nach dem quellen sind die Quelltöpfe bereit für die Aufnahme der Keimlinge

Use a pricking rod to prepare the swelling pots to receive the seedlings. For this purpose, a well (2-6 mm deep) is inserted:

Mit einem Pikierstab werden die Quelltöpfe für die Aufnahme der Keimlinge vorbereitet

After planting the seedlings, the source pots are placed in an indoor greenhouse with a heating mat:

Die Quelltöpfe werden in ein Zimmergewächshaus mit Heizmatte eingesetzt


Make sure that the Temperature during the day at about 25 degrees and the humidity around 80% lies. This way your plants will quickly stick their heads out of the ground. At the latest then it is time to provide sufficient light.

There are various options for this, depending on your ambition and budget: Windowsill, LSR, ESL or LED. The "windowsill variant" is free of charge However, optimal plant growth in the shortest possible time is only possible with artificial light.

A tip from Grow Guru: We recommend to work with our SAGA LEDs, e.g. with our SAGA 140W LEDs. They are inexpensive LEDs and they have several switches with which you can turn on the blue and red LEDs individually. So you can also use them in the flowering phase of an indoor project.

The use of plug-in fixtures, LSR or energy-saving lamps is also possible. Illumination is 18 hours, in the remaining 6 hours should be absolute darkness, otherwise it can come to zwitter. A timer makes it easier for you to keep to the times.

As soon as the first roots have penetrated the source pot, a new phase of life begins for your plants - the growth phase.

After a few days, the source pots are completely rooted:

Nach einigen Tagen sind die Quelltöpfe vollständig durchwurzelt

Week 2-3: Start of the growth phase / seedlings become cuttings

The insertion of the source pots in soil marks the Start of the growth phase. In our example, the source pots are planted in plastic drinking cups and placed back in the indoor greenhouse under a SAGA 140W.

A tip from Grow Guru plastic drinking cups are a very cost-effective solution. One thing to keep in mind is that you don't want water to pool in your cups. If this is too tricky for you, then add holes to the cups so that excess water can drain away or simply order some small pots. We offer the 1.65L pots for just this purpose.

Required utensils:

  • Earth
  • Work surface (e.g. a bowl or a small bucket)
  • Planting pots (cuttings pots or drinking cups with holes in the bottom)
  • Pricking rod
  • Gloves
  • Root stimulator
  • Lighting

Procedure:

  1. First, prepare the soil on your work surface. Moisten it evenly with water/root stimulator. The goal is to get a moist but not wet soil.
  2. Fill your plant containers with soil.
  3. Use the pricking out stick to make a well in which you can insert the complete source pot.
  4. Insert the source pot, cover everything with a little soil and press the soil lightly.
  5. Put the planters back into the greenhouse under your lighting. We recommend now a Light for 18 hours and a dark period of 6 hours. Make sure there is real darkness during the dark phase. We now use the blue spectrum switch on the SAGA LEDs.

Check the climate and humidity of the soil at least once a day. Water if necessary. The soil should now always be slightly moist, not wet.

This is what a well rooted spring pot looks like. It can now be planted:

So sieht ein gut durchwurzelter Quelltopf aus. Er kann jetzt eingepflanzt werden

Before planting, prepare the soil. We need: Growing soil, root stimulator, water. We also recommend a water sprayer.

Vor dem Einpflanzen wird die Erde vorbereitet. Wir benötigen: Anzuchterde, Wurzelstimulator, Wasser. Wir empfehlen ausserdem einen Wassersprüher.

With a water sprayer, the soil is moistened evenly, without getting wet lumps.

Mit einem Wassersprüher wird die Erde gleichmässig befeuchtet, ohne nasse Klumpen zu erhalten.

The source pots are inserted into the planter:

Die Quelltöpfe werden in das Pflanzgefäss eingesetzt

Now the planters are placed in the indoor greenhouse:

Nun werden die Pflanzgefässe in das Zimmergewächshaus gestellt

For lighting we use a SAGA LED 140W (only the blue LEDs are turned on):

Nun werden die Pflanzgefässe in das Zimmergewächshaus gestellt

After about a week, the planter is rooted and the plantlets have already grown a little. Now they can be repotted into the next larger pot size.

This is the end of the growing phase.

If you grow indoors, then the cuttings now move to the Grow Box.
If you are growing outdoors, you should now grow the cuttings indoors for another 1-2 weeks and then move them outdoors.

Checklist: what do you need for growing?

For an all-around successful growing phase, we recommend the following items from our store: