Planting giant onion (bot. Allium giganteum) - tips and tricks

Planting giant onion (bot. Allium giganteum) - tips and tricks

The ideal location for giant leeks

The giant onion (bot. Allium giganteum) loves the sun. He should get as much of it as possible at his location. Incidentally, the giant onion shares this preference with most other types of ornamental onion. Only the golden leek and the wild garlic used as a useful plant tolerate planting in partial shade quite well.

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The nature of the soil

Not only lots of sun, but also the right soil contribute to a lush flowering of your giant leek. It should be rather dry to slightly damp and well drained. Under ideal conditions, the giant leek multiplies all by itself.

The planting

The onion of the giant leek should be placed about eight inches deep into the soil (about three times as deep as the onion is high). To do this, dig a corresponding planting hole. If the soil is not permeable enough, put some sand or gravel in the hole. A layer five centimeters thick is sufficient.

For a good supply of nutrients and easier growth, a little compost is used, which you also put in the planting hole. Put the spring onion in, fill the hole with soil and water the leek well. Ideally, you should plant your giant onion in autumn.

Combine giant onion with other plants

The giant onion works particularly well in combination with other plants that are color-coordinated. Ornamental grasses are also suitable as neighbors. Above all, choose plants that love the sun, just like the giant onion, and that have similar water needs.

The essentials in brief:

  • as sunny as possible
  • well-drained, rather dry soil
  • plant in autumn
  • Planting depth: approx. 20 cm
  • possibly create a 5 cm thick drainage
  • put some compost in the planting hole

Tips

With the right companion plants, the giant onion really comes into its own. At the same time, you hide the leaves, which turn yellow relatively early.