Oxypetalum coeruleum (Tweedia)

Oxypetalum coeruleum (Tweedia) light blue flower close up with fuzzy green leaves on stems
Oxypetalum coeruleum (Tweedia) light blue flower and fuzzy green leaves covered in water droplets

Botanical names: Oxypetalum coeruleum, Tweedia caerulea

Common names: Tweedia, Blue Milkweed, Southern Star

Family: Apocynaceae

Origin: South America

USDA Zone: 8-11

Small plant 2-5 ftPlant form: Small
Plant mature sizeMature height: 2-5 ft
Full sunSemi-shadeSun exposure: Full sun or bright light indoor; semi-shade
Cold toleranceCold tolerance: Frost sensitive. Protect from freezing.
Watering: Moderate. Water when top soil feels dryWatering: Moderate
Pink flowersWhite, off-white flowersBlue, lavender, purple flowersFlower color: Pink; white and off-white; blue, lavender, purple
Suitable forSuitable for: Outdoors in the suitable USDA zone; small gardens, containers, and indoor growing

True-blue flowers are rare and these aquamarine gems will sparkle in the garden. The cultivar 'Alba' has white flowers, while 'Rosea' has pink flowers.

Only reliably hardy in the mildest of gardens, so grow as an annual or a conservatory perennial. Evergreen when kept above 5°C.

Similar plants: Oxypetalum coeruleum (Tweedia)


Oxypetalum coeruleum (Tweedia) white star flower close up with fuzzy green stems and leaves.
Oxypetalum coeruleum (Tweedia) with white star flowers and fuzzy green leaves on soft stems.
Oxypetalum coeruleum (Tweedia) white star-shaped flower close up on green fuzzy stem foliage
Oxypetalum coeruleum (Tweedia) with white star-shaped flower clusters and soft green fuzzy foliage nearby.
Oxypetalum coeruleum (Tweedia) light blue star shaped flower close up on green fuzzy stem
Oxypetalum coeruleum (Tweedia) star shaped light blue flower petals with deep blue centers on stems.


Link to this plant:
https://toptropicals.com/catalog/uid/oxypetalum_coeruleum.htm