

Lewisia cotyledon Elise Mix seeds - Siskiyou lewisia
Lewisia cotyledon Elise Mix seeds - Siskiyou lewisia
Lewisia cotyledon Elise Mix
Lewisie du Siskiyou Elise Mix
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Description
Growing Lewisia cotyledon 'Elise Mix' from seed allows you to grow this floriferous alpine perennial at low cost; it is prized for its thick rosettes and vibrant flowering in multiple shades. This lewisia mix is Ideal for rockeries, dry stone walls or containers, with captivating star-shaped flowers ranging from soft pink to bright orange, through white, salmon and yellow. It forms a compact clump, making it a perfect choice for small spaces or container cultivation. It thrives in sunny or partially shaded positions and well-drained soil, disliking winter waterlogging. To ensure its longevity, plant it in a sheltered spot, protected from excess water and cold draughts.
Lewisia cotyledon 'Elise Mix' or Siskiyou Lewisia 'Elise Mix' is a mix of horticultural cultivars belonging to the Montiaceae family, formerly classified among the Portulacaceae. It is derived from the species Lewisia cotyledon, also known as Calandrinia cotyledon and Oreobroma cotyledon, native to the mountainous regions of the western United States, particularly southern Oregon and northern California, where it grows naturally in well-drained rocky areas. The cultivars in the 'Elise' series were developed by the Dutch company Floragran and received the Fleuroselect Gold Medal for their ability to flower in their first year without requiring vernalisation (a cold period). This mix is distinguished by its star-shaped flowers in varied colours – pink, salmon, orange, white, yellow – which bloom from late spring to autumn. The plant forms a compact rosette of fleshy, evergreen, dark green leaves, reaching a height of 15 to 25 cm and a similar spread. The slightly hairy flower stems bear inflorescences in compound corymbs made up of several flowers, each measuring up to 1.5 cm long. The root system consists of a taproot accompanied by clustered roots, giving the plant good drought resistance once established. The genus name Lewisia pays homage to Captain Meriwether Lewis, the 19th-century American explorer who discovered this plant during the Lewis and Clark expedition.
In a sunny rockery or the hollow of an old stone wall, Lewisia cotyledon ‘Elise Mix’ reveals its pastel flowers. Its compact habit and generous flowering harmonise with the silver finesse of Stachys byzantina ‘Silver Carpet’, the floriferous cushions of Aubrieta ‘Cascade Blue’ or the small yellow stars of Sedum kamtschaticum. In a pot, it lends itself to a delicate display, placed on a windowsill or integrated into a mineral composition.
Lewisia are also called 'Bitter root', because their edible roots, coated in a bitter skin, were traditionally harvested by indigenous tribes to be consumed once peeled and cooked, roasted or dried, and even served as a form of currency. It is said that a plant kept dry for five years is capable of resurrecting to produce superb flowers the following summer. This is, at least, was the experience of a rather curious London botanist.
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Lewisia cotyledon Elise Mix seeds - Siskiyou lewisia in pictures


Flowering
Foliage
Plant habit
Botanical data
Lewisia
cotyledon
Elise Mix
Montiaceae
Lewisie du Siskiyou Elise Mix
Calandrinia cotyledon Elise Mix, Oreobroma cotyledon Elise Mix
Cultivar or hybrid
Planting and care
Sow Lewisia Elise Mix seeds from January to April.
It is essential to keep the seeds cool for 3 weeks: sow on the surface of good moist compost, in pots or trays. Cover with a thin layer of vermiculite. Enclose the sowings in a polythene bag and place everything in the refrigerator (not the freezer) for 3 weeks. After this cold period, place the sowings at 10-15°C until germination, which may take 1 to 3 months. Check the container regularly and carefully transplant individual young plants when they are large enough to handle, into 7.5cm diameter pots, or into trays. If germination has not occurred during this period, repeat the cycle described above.
Grow the young plants in a cold frame until planting the following spring. Space the young plants 30cm apart. Plant them in well-drained, rich and light soil containing plenty of gravel, or in pots, in full sun in cool regions, in partial shade in the south.
Growing:
Lewisia cotyledon is a very hardy plant. The choice of location is crucial: the soil must be both well-drained and fertile. In the case of heavy soil, plant on a mound or add river sand and gravel to lighten the earth. Stagnant water around the roots of this plant would cause it to rot immediately. For pot planting, it is preferable to use a terracotta pot with holes in the bottom. Provide a layer of gravel or clay pebbles to facilitate the drainage of water. The substrate should be composed of equal parts leaf compost, river sand and compost. Never leave water standing in the saucer, and allow the mixture to dry out almost completely between each watering. Apply a liquid fertiliser every 15 days during the growth period. In open ground, fertiliser is unnecessary, even harmful.
Place the Lewisia in full sun in cool climates, or in partial shade in warmer regions. To faithfully reflower each year, this plant needs a cold season; do not bring your potted plants into the warmth in winter, but shelter them from rain, which, if too abundant over a long period, could destroy the plants.
Sowing period
Intended location
Planting & care advice
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Hardiness is the lowest winter temperature a plant can endure without suffering serious damage or even dying. However, hardiness is affected by location (a sheltered area, such as a patio), protection (winter cover) and soil type (hardiness is improved by well-drained soil).
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The flowering period indicated on our website applies to countries and regions located in USDA zone 8 (France, the United Kingdom, Ireland, the Netherlands, etc.)
It will vary according to where you live:
- In zones 9 to 10 (Italy, Spain, Greece, etc.), flowering will occur about 2 to 4 weeks earlier.
- In zones 6 to 7 (Germany, Poland, Slovenia, and lower mountainous regions), flowering will be delayed by 2 to 3 weeks.
- In zone 5 (Central Europe, Scandinavia), blooming will be delayed by 3 to 5 weeks.
In temperate climates, pruning of spring-flowering shrubs (forsythia, spireas, etc.) should be done just after flowering.
Pruning of summer-flowering shrubs (Indian Lilac, Perovskia, etc.) can be done in winter or spring.
In cold regions as well as with frost-sensitive plants, avoid pruning too early when severe frosts may still occur.
The planting period indicated on our website applies to countries and regions located in USDA zone 8 (France, United Kingdom, Ireland, Netherlands).
It will vary according to where you live:
- In Mediterranean zones (Marseille, Madrid, Milan, etc.), autumn and winter are the best planting periods.
- In continental zones (Strasbourg, Munich, Vienna, etc.), delay planting by 2 to 3 weeks in spring and bring it forward by 2 to 4 weeks in autumn.
- In mountainous regions (the Alps, Pyrenees, Carpathians, etc.), it is best to plant in late spring (May-June) or late summer (August-September).
The harvesting period indicated on our website applies to countries and regions in USDA zone 8 (France, England, Ireland, the Netherlands).
In colder areas (Scandinavia, Poland, Austria...) fruit and vegetable harvests are likely to be delayed by 3-4 weeks.
In warmer areas (Italy, Spain, Greece, etc.), harvesting will probably take place earlier, depending on weather conditions.
The sowing periods indicated on our website apply to countries and regions within USDA Zone 8 (France, UK, Ireland, Netherlands).
In colder areas (Scandinavia, Poland, Austria...), delay any outdoor sowing by 3-4 weeks, or sow under glass.
In warmer climes (Italy, Spain, Greece, etc.), bring outdoor sowing forward by a few weeks.










