Oxypetalum coeruleum is a species of flowering plant, native to South America from southern Brazil to Uruguay, in the Apocynaceae family. The synonymous name Tweedia caerulea is also used. Growing to 100 cm, it is a straggling evergreen perennial with heart shaped, gray-green, downy leaves.
It is grown for its clear pale blue, star-shaped flowers, which are long lasting and cut well. The summer flowers age to purple and are followed by 30 cm long, boat-shaped seed pods. The seeds have downy parachute-like tufts (cypsela). The cultivar 'Alba' has white flowers, while 'Rosea' has pink flowers.
Oxypetalum coeruleum requires full sun in a well-drained soil that is dry. Propagation is via seed. With a minimum temperature range of 3–5 °C, it can be grown outdoors in a frost-free, sheltered environment. Alternatively it can be grown as an annual. This plant has gained the Royal Horticultural Society's Award of Garden Merit.
This post is part of the Floral Friday Fotos meme.
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