If you have learned to appreciate your giant leek, then you may want to have more of these decorative plants in your garden. Of course you can buy these, but it's much nicer to grow the giant leek yourself.
How to propagate Allium Giganteum?
To propagate the giant leek (Allium giganteum), seeds can be sown after they have reached their black color or bulbs can be planted in autumn. Please note that the giant leek is a cold germinator and requires a cooling period before sowing.
What methods of propagation are there for giant leeks?
Allium giganteum, the giant leek, can be propagated by dividing the bulbs or separating daughter bulbs or by sowing. Both methods are easy to implement and successful in most cases.
Where do I get the seeds?
Of course, you can also purchase various seeds for giant leeks in stores, but if you have your own giant leek, then just use its seeds. To do this, leave the wilted inflorescences until the seeds inside have turned black. Now they are ready for harvest and rapid sowing. Store the seeds only for a short time, but then in a dry and dark place.
Sowing the giant leek
Before the seeds of your giant leek can germinate, they need a certain period of cold, because they are so-called cold germinators. Temperatures should be around freezing point for at least a few days, if necessary in the freezer or refrigerator.
Sow your giant leek outdoors immediately after harvesting, then the seeds will germinate next spring. It is also possible to grow on the windowsill after cooling. Keep the seeds evenly moist.
Propagation through onions
The giant leek practically does the propagation by breeding onions all by itself. In addition to the main onion, small daughter onions or breeding onions grow over the years. If these have developed far enough, they can be transplanted. It's best to dig up your spring onions in the fall. Separate the largest daughter bulbs and place them back in the ground in a suitable location.
The most important things in brief:
- Propagation possible by sowing and breeding bulbs
- Don't harvest seeds until they turn black
- sow directly after harvest
- if storage is necessary: dark and dry
- Mix potting soil with quartz sand if necessary
- Cold germination
- Keep substrate and seeds moist
- Planting bulbs in autumn
- Avoid waterlogging!
Tip
The giant leek is quite easy to propagate and even takes on this task itself by forming daughter onions.
