Beautiful white daisies cover it early in the season. These are borne on low-growing plants that are ideal for containers and rock gardens. It is easy to grow but tends to be short-lived. It will gently self-sow but the seedlings are not true to parent.
Unlike many aster species, the delicate, pastel daisies of alpine aster bloom in late spring and summer.
The small, oval leaves of alpine aster are green to gray-green. Lots of bright daisies with fine ray petals and golden centers appear in spring or early summer. Bees are the key pollinators but butterflies also visit them. Fluffy, white seedheads are produced in mid to late-summer.
Full to partial sun and sharply drained soil are essential for this carefree alpine. It will not tolerate hot or humid temperatures, so it's best reserved for northern gardens. Late in the season it may develop powdery mildew or rust. Place this early season beauty in rock, trough or alpine gardens.
Information source: http://learn2grow.com/plants/aster-alpinus-white-beauty/
Genus - Aster
Species - Alpinus
Variety - Albus
Common name - Alpine Aster
Pre-Treatment - Required
Hardiness zones - 5 - 8
Height - 0,20 - 0,25 m
Spread - 0,25 - 0,30 m
Plant type - Perennial flower
Exposure - Full Sun, Partial Sun
Growth rate - Fast
Soil PH - Acidic, Neutral, Alkaline
Soil type - Clay, Loam, Well Drained
Water requirements - Average, drought tolerant
Landscape uses - Cutflower, Mixed Border, Rock Garden
Bloom season - May - July
Leaf / Flower color - Green / White
Sowing time from January to June inside.
1. Fill a pot or seed trays with potting soil and dampen it with water until it is moist.
2. Press two to four aster seeds into the damp soil. Do not cover the seeds with soil as they need light to germinate.
3. Place the pot or seed tray in the refrigerator or outdoors in temperatures of around 0-+4C for two to three weeks.
4. Remove the aster seeds from the refrigerator or their current outdoor location and place them in a climate with an air temperature of at least +18+20C. Leave the asters there for two to three weeks and they should sprout.
5. Transplant the sprouts to individual pots filled with potting soil or into your garden.
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