Morningstar sedge - plants, care and propagation

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With its decorative spiny fruits, the Morgenstern sedge not only makes a very beautiful picture. It is also very robust, easy to clean and adaptable.

Morgenstern sedge

There are around 2,000 different types of sedges, including the morning star sedge. Under her Latin name, the plant is known as Carex grayi - and has been around since 1848, when John Carey described the species of sedges for the first time. It is a plant of the family of the sour grass family. Thus, the morning star sedge is a herbaceous, particularly perennial plant. As long as temperate climatic conditions prevail, sedges are even found almost everywhere in the world.

More information about the Morgenstern sedge

Not only in the garden, but also in a bouquet of flowers or flowers makes the Morgenstern sedge very good. The green, unmistakable globular inflorescence of this plant is just a real eye-catcher. The bloom time extends from the merry month of June into August and the growth is characterized externally as well as in its characteristic constitution by the following characteristics:

  • Fruit stalks are similar to a morning star
  • yellow flower color
  • triangular, rather narrow leaf leaves
  • bushy and horstbildender growth
  • Growth heights of up to 70 centimeters
  • Growth widths of up to 40 centimeters
  • wintergreen plant
  • very good winter hardiness
  • very long-lived plant
  • it grows slower compared to other species of sedges
  • grows especially in summer as well as in spring
  • Natural spread: Northeastern US and eastern Canada

What a sturdy and durable plant it is with the morning star sedge, it also shows that it can withstand temperatures of up to minus 18 degrees Celsius. If confronted with frost-free periods of more than three months, the Morgenstern sedge can easily survive in the wild. For example, it can be found near natural waters, swamps and streams.

Where do Morgenstern sedges thrive best?

The Morgenstern sedge is not only very good as a shrub, but also for the creek and pond plantations. Whether in the shade or in a Japanese garden, the Morgenstern sedge also finds its proper place there. The same applies to the following places:

  • in beds between many other bedding plants
  • in a natural garden
  • in the woody area

When is the best planting time?

Spring is the ideal time to plant the morning star sedge. On one square meter not more than seven to nine plants of the morning star sedge should be planted. This corresponds to a planting distance of about 35 centimeters, so that the growth width of the morning star sedge can be optimally taken into account. The plant can be planted either individually or in small groups. This is entirely at your discretion and depends above all on your aesthetic ideas for your garden.

What is the perfect location for the Morgenstern sedge?

The morning star sedge can best train its whimsical inflorescences in a sunny to half shady location. When it comes to the soil, her fresh, moist soils, which should be full of nutrients, her favorite. In most cases, the Morgenstern sedge with regular soil soil is therefore very well served. Since this is a grass variety, you should definitely make the following soil preparation:

  • a very loose ground
  • the soil should be cleared of weeds
  • ensure adequate drainage
  • a pH of the substrate of 5.7 to 7.2 is ideal
  • ideal topsoil thickness: around 20 centimeters

Low-oxygen and calcareous soils can tolerate the Morgenstern sedge very well. For temporarily dry soils, however, the plant has only a low tolerance. The same applies to wet floors. Waterlogging in most cases leads to the death of the morning star sedge. This is why it should be avoided at all costs, while the soil should be free of weeds in the sense of a lush as possible growth.

Since the plant prefers a humus-rich, rather fresh soil, you can gladly add foliage compost, which is already well rotted, to the planting hole. Thus you ensure the optimal nutrient supply of the morning star sedge. On saline soils the plant does not grow at all. Because such site conditions, the herb can not tolerate even in the beginning.

Planting guide for the morning star sedge

❶ To make sure that the Morgenstern sedge is as beautiful as possible, you should prepare the planting hole as described above to provide the necessary soil conditions.

❷ The young plants, which are available from specialized dealers, must be sufficiently watered before being planted outdoors. Place the root ball in a bucket. Then fill the bucket with well-tempered water to the brim.It usually takes no more than ten to twenty minutes for the root ball of the morning star sedge to be soaked in sufficient water.

❸ Compared to the pot ball, you should lift the planting hole for the morning star sedge to about twice the size. Then place the plant in the hole, but setting up an additional drainage layer may be necessary beforehand, depending on the local soil conditions. When planting the morning star sedge, you should also make sure that you do not plant the plant deeper into the soil than it had previously sat in the pot.

Auf Then fill the planting hole with garden soil and press it lightly. Now the morning star-sedge-young plant only needs to be watered well, so that the plant can grow as desired.

This is how to properly care for the morning star sedge

To water:

Especially in the planting year, it is important that you water the morning star sedge sufficiently. This should be done in the mornings or evenings so as not to harm the plant. Especially in periods of drought or when a particularly hot summer prevails, you must pay attention to the provision of sufficient water while avoiding waterlogging.


Especially in the growth phase, which takes place in the spring, it makes sense to fertilize the morning star sedge. If leaves in the bed under the Morgenstern sedge accumulate, so you can leave this quite. Because this foliage provides valuable humus, which can use the grass as an excellent source of nutrients. You should not fertilize this type of sedge too much. Because this can make the plant even less robust and disease-prone in the worst case.

Rear section:

The evergreen Morgenstern sedge does not require pruning in spring. Rather, it is absolutely sufficient if you clean up the grass a bit. You can do that by hand or use a rake. To avoid injury during this work, wear gloves. After all, the Morgenstern sedge does not come without its edges.


The morning star sedge also shows a very robust side in winter. Only if the plant has been planted in a bucket or pot, a few measures to hibernate the plant are necessary. In frost, you must provide the bucket with an additional frost protection, such as straw mats or giant. Above all, you must provide the morning star sedge-bucket plant in winter with enough water. However, watering should only be done on frost-free days and not overly.

Propagation of the morning star sedge

Morgenstern sedge

❍ Multiplication by division:

With a shale or a large grassy horst, it makes sense to make two from one plant and thus multiply them. The division should be made in the middle of the plant, the second half can then be moved to another place. Incidentally, spring is the ideal time to divide the morning star sedge.

❍ Propagation by sowing:

The morning star sedge multiplies by self-sowing. If you do not want that in your garden, be sure to keep an eye on the budding seeds of the plant. Then simply remove them as needed.

On the other hand, if you want to propagate the plant selectively by sowing and then plant it in a certain place in the garden, you must consider the following when sowing the cold germ:

  1. The late autumn or early winter are the ideal time for sowing.
  2. Sowing is possible outdoors or in a cold frame.
  3. A frost effect is required.
  4. Snow cover is even beneficial when germinating.
  5. The sowing must never dry out completely.
  6. The sowing is also possible in the fridge by means of a special planter.

If you want to approach the sowing of the morning star sedge indoors, you should warm the seeds for two to three weeks and keep them sufficiently moist. Only then are the morning star sedge seeds left in the refrigerator for four weeks. Then they can move into the open, to germinate in the field. However, this project is not always successful, so that the proliferation by division is probably the better choice.

Possible diseases and pests in the morning star sedge

If the optimal site conditions are not met, then the actually so easy-care grass is much more susceptible to diseases and pests. This is the case, for example, if the level is too narrow. Then rust and mold have a much easier game with the morning star sedge. Too much weeds can also make sure that the plant is not supplied with enough water and nutrients, which is why it should be avoided by regular weeding. However, this plant is rarely affected by rust, provided you properly care for the Morgenstern sedge.

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