Above a tidy mound of fine green foliage, scores of cup-shaped, light blue-violet flowers from early summer to frost. Descended from a tender perennial native to Chile, it is widely cultivated as a long-blooming annual for garden uses that maximize its pretty flower display.
This bright green plant is very bushy, fine-stemmed and densely-branched. The stiff leaves are short and narrow, almost needle-like. Depending on climate, from late spring onwards until a frost, many cup-shaped, five-petalled flowers cover the plant. They are pale blue-violet and fade at their edges to lavender. Butterflies and bees pollinate them.
Grow in a moist, well-drained, rich, organic soil in full to partial sun. In winter reduce watering. Not overly tolerant of summer heat, it may stop flowering and resume toward early fall; it is best in regions with cool but comfortable summers.
After blooming, plants should be lightly trimmed to encourage new growth and bloom.
Use it in frost-free locations as an evergreen, mounded accent in the mixed border or moist rock garden, as a bedding plant, or in containers and hanging baskets. In hot summer regions grow it from fall to spring. In cold temperate areas, grow it as an herbaceous annual to brighten beds among spring bulbs, as edging, or in summer containers.
Information source: Learn2Grow.com
Genus - Nierembergia
Species - Hippomanica
Common name - Cupflower
Pre-Treatment - Not-required
Hardiness zones - 4 - 10
Height - 0,15 - 0,30 (0,50)m
Spread - 0,15 - 0,30 m
Plant type - Annual/perennial flower
Exposure - Full Sun to Partial Sun
Growth rate - Fast
Soil PH - Alkaline - neutral (pH 6.6-7.5)
Soil type - Loam, Sand
Water requirements - Average
Landscape uses - Bedding Plant, Container, Edging, Hanging Basket, Mixed Border, Rock Garden / Wall
Bloom season - June - September
Leaf / Flower color - Green / Lavender, Blue Violet
Sow from March to April inside in prepared seed beds.
Press gemtly into soil, cover lightly with peat moss.
Keep soil slightly moist, but not wet until germination.
Cover with glass or clear plastic as light is requiered for germination.
Keep at +18-22C.
Germination time - 14-30 days.
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