
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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Penstemon crandallii
Crandall's Beardtongue
Plantaginaceae
Height
under 5 cm
Flower colour
blue
Flowering time
June
Foliage colour
green
Sunlight
sun
Soil
well drained, gritty
pH
acid - neutral - alkaline
Hardiness
sensitive to winter wet, grows best in gritty soil on a steep slope
Plant range
Rocky Mountains
Penstemon is a genus in the family Plantaginaceae. It is a large genus native to N-America. They are usually low growing herbaceous plants or sub-shrubs with irregularly shaped flowers. They prefer full sun and many are well suited to rock gardens.
Propagation:
Cuttings.
Seed - sown in September - November
Seed not covered and stored outside until germination.
Mat forming alpine plant. Sensitive to winter wet. Needs very sharp drainage, preferably on a steep slope.
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