Everest
Edelweiss
Leontopodium nivale subsp. alpinum, Fior di Lana, Edelweiss, Edelweiss
Scientific classification
Class
Dicotyledons
Division
Angiospermae
Family
Asteraceae or Compositae
Order
Asterales
Genus
Leontopodium
Species
alpinum
Key information
Description
Commonly called edelweiss, it is a low-growing herbaceous perennial with a globular habit; the narrow leaves are grey-green, colour-balanced with the yellowish-white flower heads surrounded by white, woolly bracts that appear from late spring until late summer. It grows best in cool summer climates and in well-drained soils free of waterlogging.
Variety description
It is a fascinating plant because of its starry flower, typical of mountainous areas. It does not have very showy vegetation.
Origin and history
Curiosities and special features
It is the symbolic flower of the Alps and the mountain environment in general, where it has been designated a protected species. The generic epithet, Leontopodium, derives from the Greek and means lion's foot in reference to the shape of the flower heads similar to a feline's paws; the specific term, on the other hand, derives from the plant's natural habitat, as does its common name, edelweiss. An extract with antioxidant properties is obtained from the flowers and used to produce creams and soaps.
Origin and distribution
Various studies have shown that the wild form, symbol of the characteristic Alpine flower, is native, like other species belonging to the genus Leontopodium, to the arid mountainous areas of the desert plateaus of Central Asia, as would be shown by the dense down covering the plant used to limit water loss through transpiration and as protection from UV rays; it later spread to Europe, where it now grows wild up to about 3,000 m above sea level in the Italian, French, Swiss, Austrian and Slovenian Alps. It is a protected Alpine plant but is also a cultivated species in specialised nurseries.
Main features
Flower size
The flower is singularly small, lending elegance and refinement to the overall showy bloom.
Leaf
Lanceolate blade.
Flowering period
Flowering lasts from late spring to late summer and lasts between 90 and 120 days.
Leaf colour
Solid colours.
Plant height
The height of the plant varies from 0.15 to 0.2 m.
Lifespan
Perennial plant.
Where to plant
Due to its excellent summer flowering, it is very well suited for ornamenting green spaces with a high decorative value; it is in fact considered a typical plant for flowerbeds, balconies, flower boxes Ideal also in rock gardens. It is ideal for compact compositions, which can be combined with taller blooms.
Stem
Herbaceous stem, the variety has no thorns.
Flower
The flower is daisy-shaped, small, with single-coloured petals. It flowers from late spring to late summer, with a flowering period of between 90 and 120 days. It is not particularly attractive to pollinating insects.
Growth
It shows compact growth, ideal for bedding compositions with other ornamentals of different heights in order to create plays of perspective and movement.
Plant habit
Characteristically globular habit, with a bushy, proportionate final effect.
Branching
It develops medium branching, creating an interesting decorative result.
Growing conditions
PH
The ideal soil pH is between 5.0 and 7.0.
Soil preparation
For spring transplanting into a flower bed, carry out light digging, removing any weeds and bulky stones, then break up the coarser clods and add professional quality substrate to the surface to an average height of 5/10 cm, and finally carefully level.
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Sun exposure
An exposure in full sun, half shade is the optimal environmental condition for a balanced vegetative development and abundant flowering of this light-demanding ornamental plant.
Ideal climate and temperature
It grows best in cool summer climates. The ideal temperature is between 10 and 20 °C. The vital temperature is between -20 and 35 °C In this temperature range, the plant can survive and then resume normal vegetative growth when ideal thermal conditions are restored.
Use
Appreciated by growers, gardeners and hobbyists for use in:
Ornamental
Hardiness
It has medium rusticity, adapting to climatic situations that are not always favourable for other ornamental species.
Soil
It offers the best growth results in a medium-textured, peaty, light soil that ensures good drainage and avoids water stagnation causing root rot.
Difficulty
It is fairly easy in care and maintenance, the level of management effort is low overall.
Growing tips
For maximum growth and flowering, it is recommended to
Avoid over-watering Please note that Synthetic cultivation information ideal plant for flowerbeds in cold winter climates, and withstands frozen soils very well, it fears over-fertilisation especially in conjunction with water stress.
Combinations with other plants
Suitable in bedding arrangements with other ornamentals such as Arenaria montana, Armeria maritima, Campanula poscharskyana.
Care and plant health
Planting
To ensure balanced growth and a well-proportioned end result, an average bedding density of 10 plants per square metre is recommended.
Propagation
By sowing or by division of the head.
Watering
Use rainwater, alternatively canal water with a sub-acidic optimum pH, by hand watering or irrigation system. When transplanting, assist the seedling as it is more susceptible to stress at the new planting site. Take care to keep the soil moist at all times while avoiding waterlogging, which can cause root rot. It is also advisable to prevent water shortages that can cause leaf yellowing.
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Fertilising
After proper establishment at the new planting site, apply a balanced organic mineral fertiliser specifically for ornamental plants to the soil at the foot of the plant. For use in pots, fertilisation must always be localised at the foot with organic mineral fertiliser. It fears over-fertilisation, particularly in conjunction with water stress.
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Edibility and toxicity
Pet safety
Toxicity to pets not known; consider the specific case and consult with your veterinarian in case of ingestion.
Edibility for humans
Non-edible.
Toxicity for humans
Ingestion toxicity not known.
Expert advice
Tip
Do not plant the plants in areas where there may be water stagnation, they do not like water on their roots.
Profile curated by Walter Zoccarato.




