Asplenium
Asplenium er ættkvísl um 700 burknategunda í Aspleniaceae ættinni og er af flestum grasafræðingum talin eina ættkvísl ættarinnar. Þetta er breytileg ættkvísl með nokkrum undirflokkum, sem stundum eru flokkaðar sem sér ættkvíslir.
in Iceland
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Gardening
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Cerastium biebersteinii
Snow in Summer
syn. Boreal Chickweed
Caryophyllaceae
Height
10 - 15 cm
Flower colour
white
Flowering time
June - July
Foliage colour
silver grey
Sunlight
sun
Soil
well drained, gritty
pH
acid - neutral - alkaline
Hardiness
hardy
Plant range
Crimean peninsula
Cerastium is a genus of around 100 species in the Caryophyllaceae family, with a global distribution, although most species are native to temperate regions in the northern hemisphere. They grow best in full sun in dry, poor soils.
Propagation:
Division in spring.
Basal cuttings.
A stalk without buds is torn off at the base and planted in soil mixed with pumice and kept in a sheltered spot out of strong sunlight until the cutting is rooted.
Seed sown in March.
Seed just covered and kept at 20°C (68°F) until germination. After germination it should be kept at a lower temperature with plenty of light so the plants won't become lanky.
Very hardy plant that is smothered in flowers when in bloom. Flowers for a prolonged time. Very similar to C. tomentosum, but the petals on C. biebersteinii have deeper slits.
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