Aster Novi Belgii ‘Alert’, Michaelmas Daisy or New York Aster, Zones 3-9
Also known as Fall Asters, these are terrific favorites for autumn colour in the perennial border. Plants form a bushy clump, bearing loads of small daisy flowers. This is a dwarf selection with double crimson-red blossoms. Pinch plants before July to maintain a cushion effect. Excellent for cutting. Most asters will be troubled much less with powdery mildew when grown in a moist, rich soil. Divide plants every two to four years to maintain vigour.
Sun Exposure: Full sun
Soil type: Average, sandy or clay
Soil PH: Neutral, Alkaline or Acid
Soil Moisture: Average to moist, good drainage
Care level: Easy (Pinch plants before july. Divide every 2 or three years in spring)
Flower color: crimson red
Bloom time: late summer to mid-fall
Foliage Color: Deep Green
Uses and Characteristics: Borders, Containers Cut Flower, Massed, Wild Flower, Rabbit Resistant, Attracts Bees and Butterflies, Fall colour
Flower head size: Small
Height: 25-30 cm (10-12”)
Spread: 30-45 cm (12-18”)
Growth Rate: Medium.
Propagation: By division or by stem cutting in late spring or early summer.
Problems: Improve resistance to mildew by ensuring good air flow around plants and planting in rich soil. Asters may wilt and die if grown where soil is continuously wet.
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