How to plant and cultivate an astilbe?

How to plant and cultivate an astilbe?

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The characteristics of astilbe

  • Type: Flower and flowering plant
  • Height: From 30 to 60 cm, from 60 to 80 cm, from 80 cm to 1m50
  • Flower color (s): white, pink, purple, red
  • Desired exposure: shaded, semi-shaded
  • Type of soil: clay soil, moist
  • Foliage: Caduc
  • Interview: Easy to maintain
  • sanitizer: No
  • variety : Weisse Gloria, Purpulanze, Etna, Amethyst…

Origins and peculiarities of astilbe

Theastilbe is a flowering plant native to North America, but also from China and Japan. A member of the saxifragaceae family, astilbe grows mainly in humid (particularly at the water's edge) and shaded areas. It will therefore do the trick if you have a shaded area in a garden and want to flower it, especially if it is a humid place (around a pond, a small pond or a stream for example).

Visually, astilbe is appreciated not only for the brightness of its flowers (mauve, white, pink or red), but also for its superb foliage of a brilliant green sometimes mottled with bronze, similar to that of the fern in its form.

The astilbe is a perennial plant of which there are a dozen species: do not hesitate to plant different hybrids (of various sizes) in your for an avalanche of colors and different smells!

The icing on the cake: astilbe flowers are edible and have a taste comparable to that of honey. To taste these flowers, you can integrate them into your dessert creams or drain them directly on your summer salads.

Plantation of astilbe

The astilbe is planted at the same period as the perennials, that is to say either in spring (March-April) or in autumn (September-October-November). Before digging the earth, check that it is sufficiently acidic and clayey. If the soil is poor, it will be necessary to bring compost. The feet should be spaced (about 50 cm between each foot).

In terms of location, the astilbe is not a very capricious plant: you can plant it either in the shade (other trees in particular), or in a slightly sunny place. As long as the soil that receives it is moist, everything will be fine for it. The soil must be very cool, not too calcareous, and sufficiently clayey. An undergrowth, the surroundings of a basin or a stream will provide it with adequate habitat.

Potted or planter, plant your astilbe in heather earth for it to flourish at best.

Watering the astilbe

Astilbe is a water-loving plant that quickly withers away in the event of drought: the soil that receives them should never be dry, and always remain moist.

The summer following the first year of planting, be sure to water the plants abundantly, and put on a mulch so that the water does not evaporate too much. As soon as the soil dries up, you have to re-water!

Astilbe maintenance

Although considered a rustic plant and easy to maintain, it is necessary to give it some regular care, such as:

  • A systematic compost supply at the return of sunny days (spring) to nourish the plant.
  • Add liquid fertilizer to flowering plants when your astilbe starts to flower.
  • A cut of faded flowers when the summer is over.

Gardener's tip : at the end of winter, gardeners have a habit of curling up the tuft. This procedure gives the plant a boost, which will develop new leaves.

Reproduction of astilbe

The only effective technique is division by tufts. To get started in the multiplication of this plant, you must wait three years and carry out the manipulation in winter provided that it does not freeze. If you live in a cold region, breed in anti-freeze pots.

Diseases, fungi and parasites of astilbe

The astilbe is a plant which adores humid places. It is not known to be fragile. On the contrary, this pond plant is very robust. She only fears powdery mildew which is a fungus which develops throughout the year. This disease is diagnosed by the eruption of small white buttons on all of the foliage.

It is however possible to prevent this disease by taking care to respect the conditions of culture as well as by bringing a specific care to fortify it (decoction of horsetail for example). If, unfortunately, your plant is affected, you will have to suffer.