Edelweiss is an iconic mountain plant from the European high mountains and the symbol of the Alps. The plant represents courage, purity, and loyalty and is considered a national symbol of Austria. The name Leontopodium means “lion’s paw,” referring to the shape of the inflorescence, while “edelweiss” comes from German and literally means “noble white.” Edelweiss is also called Alpine Edelweiss, Wool Flower, Cat's Paw, Mountain Fower, Alpine Snow Flower, White Star, Everlasting Flower and Flannel Flower. Edelweiss belongs to the composite family (Asteraceae), like sunflower, cornflower, marigold, chamomile, Roman chamomile, lettuce, endive, and daisy. The plant blooms with striking star-shaped white pseudo-flowers. The white “petals” are actually woolly bracts surrounding small yellowish flower heads. The woolly, silver-gray hairs on the leaves and flowers protect against cold, dehydration, and strong UV radiation — typical conditions in high mountains. Naturally, edelweiss grows in the Alps, but also in the Pyrenees, Carpathians, and Dinaric Alps. It occurs on sunny, rocky slopes with calcareous, well-draining soil. Reproduction occurs via seeds or rhizomes.
In the past, edelweiss was heavily picked, which led to a decline in the wild. Therefore, the plant is now protected in several Alpine countries and is mainly cultivated for ornamental purposes. Additionally, extracts are used in skincare products due to their antioxidant and protective properties. In gardens, edelweiss thrives in rock gardens or Alpine gardens, provided the soil is calcareous and well-drained, especially in winter. Edelweiss is highly attractive to bees and flies and is pollinated by them. It flowers from July till September. Hardy perennial. Height: 5 - 20 cm.
Stratification: 7 - 21 days
Indoor sowing: February - April
Outdoor sowing: May - July
Germination: 14 - 42 days
Germination temp.: 15 - 20 °C
Sowing depth: shallow
Planting distance: 20 - 30 cm
Planting position: sunny - good drainage
Flowering period: July - September (in the 2nd year after sowing)
It is recommended to stratify Edelweiss seeds before sowing. This mimics natural conditions and ensures better germination. Here are two methods:
Place the seeds mixed with some moist sand or soil in a plastic bag. Store this in the refrigerator or freezer for 1 to 3 weeks. Allow the seeds to come to room temperature (around 20 °C) before sowing them at a suitable temperature.
Sow the seeds outdoors in winter. This allows the seeds to undergo natural stratification. This method is especially suitable for regions with cold winters.
After stratification in the refrigerator or freezer, seeds can be sown indoors from February. Sow them in seed trays or small individual pots filled with well-draining soil mixed with sand or grit. Ensure the soil contains few nutrients. Sow the seeds superficially and cover them lightly. Press the seeds gently into the soil, as Edelweiss is a light germinator. Provide sufficient light and maintain a stable temperature, especially avoiding cold nights. A grow light can help with light requirements. Keep the soil lightly moist but not waterlogged to prevent rotting. Patience is important when sowing Edelweiss, as germination can take 14 - 42 days (2 - 6 weeks) and sometimes even longer. Transplant seedlings into separate pots once they are large enough to handle, usually when they have developed a first set of true leaves. From early May, seedlings can be gradually acclimated to outdoor conditions by placing them outside for a few hours per day for 10 - 14 days. After this period, they can be planted in a sunny location with well-draining soil.
Sow outdoors from mid-May, once there is no longer a risk of frost. It is also possible to sow earlier in spring, allowing nature to stratify the seeds naturally. Sow outdoors in a sunny spot with well-draining, calcareous, slightly alkaline soil. For heavy clay soil, add sand, grit, or small stones to improve drainage. Spread the seeds evenly and do not cover them. Press them gently into the soil. Keep the soil consistently moist. Once the seedlings are large enough to handle (after several weeks or months), plant them 20 - 30 cm apart. Edelweiss usually doesn't flower in the first year; the first true flowers often appear in the second year after sowing. Water moderately, especially during dry periods, but avoid waterlogged conditions. Edelweiss is adapted to dry, mountainous conditions and doesn't retain excess moisture. Mature plants can also be divided in spring or autumn to produce new plants, which is often easier than sowing.
