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Queen's wreath
Also known as: Nilmani
Queen's wreath (Petrea volubilis) is an evergreen flowering vine that is native to Central America and is grown in gardens around the world for its ornamental properties. In late spring and early summer, it produces star-like purple flowers. The scientific genus name honors Lord Robert James Petre, a 17th-century British horticulturist.
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Perennial
Lifespan
5 m
Plant Height
1.8 m to 3 m
Spread
Green
Leaf Color
2.5 cm to 5 cm
Flower Size
Purple, Lavender
Flower Color
Evergreen
Leaf type
20 - 41 ℃
Ideal Temperature
Spring, Summer, Winter
Growth Season

Images of Queen's wreath

Distribution of Queen's wreath

Distribution Map
Queen's wreath flourishes primarily in the tropical regions of Central and South America. It is also widely cultivated and has been introduced across various continents including Asia and Africa. Its adaptability has allowed it to naturalize in many parts of the Old World tropics.
Native
Cultivated
Invasive
Introduced
No species reported
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Habitat
Rivers, streams
Hemisphere Trend Curve
Flowering
Fruiting

Quickly Identify Queen's wreath

1
Elliptical dark green leaves up to 8 inches (20 cm) long.
2
Cascading racemes of tubular blue flowers, roughly 1 foot (30 cm) long.
3
Coarse textured leaves similar to sandpaper.
4
Purple star-shaped flowers with lighter purple calyx persisting after petals fall.
5
Prominent vein pattern running parallel to leaf margins.
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Care Guide for Queen's wreath

Every 1-2 weeks
Water
Full sun
Sunlight
20 - 41 ℃
Ideal Temperature
Garden Soil
Soil Type
Water: Queen's wreath prefers high humidity and consistent moisture, requiring watering every 1-2 weeks to keep the soil moist, but not saturated. As an evergreen, it thrives outdoors, benefiting from natural rainfall that enhances its lush foliage throughout the year.
Fertilize: For optimal care of queen's wreath, use balanced fertilizers monthly in spring and summer, bi-monthly in fall, and none in winter. Water thoroughly after application to prevent foliage burning. Juvenile queen's wreath requires lighter, frequent feeding, while mature queen's wreath benefits from consistent nutrition for ongoing blooms.
Pruning: Queen's wreath features vibrant purple flowers and vigorous growth. Prune in early spring to enhance health and flowering; remove dead stems and trim overgrown branches. This practice improves air circulation and light penetration, aligning with its growth cycle for optimal results.
Propagation: Queen's wreath is valued for its beautiful purple flowers. To propagate, take healthy stem cuttings with several leaf nodes, use a well-draining potting mix, and keep the soil consistently moist. Applying rooting hormone can improve success, but handle cuttings carefully as they can be sensitive.
Repotting: Queen's wreath should be repotted every 2-3 years in late winter or early spring, using a larger, well-draining pot. Post-repotting, provide bright indirect light and consistent moisture, avoiding waterlogging. Handle gently as queen's wreath can be sensitive after transplanting.
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