Petrea Volubilis (Purple Wreath, Queen's Wreath, Sandpaper Vine)

Common names: Purple wreath, Queen's wreath, Sandpaper vine, Sand paper, Nootka Cypress, Bluebird Vine, Florida Wisteria
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USDA Zone 9-11

usda zones

Full sun, Partial shade

sunlight

Well draining soil

Soil & water

Butterflies, Honey bees

fauna

Plant description

Queen’s wreath (Petrea volubilis) is a stunning tropical vine that resembles wisteria with its drooping lavender flowers. You may know this vine by one of its other common names: Petrea, purple wreath, or sandpaper vine. The name sandpaper vine refers to the texture of the plant’s leaves which are stiff and feel, as the name suggests, like sandpaper.

This tropical plant has a large native range. It can be found growing south from Southern Mexico through Central America on into northern and western South America down to Paraguay. Queen’s wreath is also found growing in Cuba, Jamaica, Puerto Rico, and Hispaniola.

 

Queen’s wreath flowers multiple times a year—most profusely between February and June. The flowers are densely packed in a form (called raceme) that, from a distance, resembles a bunch of grapes. The actual flowers are small and light blue or purplish. They will eventually fall, leaving the calyces. A calyx is the base of a flower and is usually green, but queen’s wreath boasts purple calyces as attractive as the true flower petals. The calyces will persist for several weeks, providing your landscape with a little extended color. While the purple-flowered queen’s wreath is more common, there is also a white-flowered cultivar, ‘Albiflora’.

This vine is described as being “variably deciduous,” meaning leaf drop depends on the climate and weather in your specific area. Some plants may drop all leaves during the winter while others only drop some.

While usually found growing as a woody vine, queen’s wreath can be maintained as a shrub or a small, single- or multiple-trunked tree. Left to its own devices, queen’s wreath can reach 40 feet tall, but you can keep it much smaller with occasional pruning.

 

how to grow Queen’s wreath (Petrea volubilis)

Queen’s wreath will grow best in full sun but can tolerate partial shade. This plant has high drought and wind tolerance and medium salt tolerance, making it great for coastal gardeners. Queen’s wreath needs frequent watering to get established and young, small plants should be protected from frost. Once established your plant will need very little care, just occasional pruning and infrequent irrigation. Be sure to keep competing lawn grass away from the root zone. Another nice attribute of this plant is that it has no major pest problems.

Queen’s wreath looks lovely when allowed to grow over a gated entrance, along fences, in a large container, or even clambering up a selected tree. Just be sure to provide your plant with a sturdy support structure when growing it as a vine.

It generally takes only two or three years for newly planted queen’s wreath to begin flowering. Be aware that the first intense bloom of the season may leave your vine almost leafless, but never fear—leaves will return.

These plants may produce seeds, but they can also be propagated and passed on by cuttings or air layering.

How to take care of petrea volubilis

Fertilizer

Fertilize twice a year in spring and fall with a slow release fertilizer. Supplement feedings with bone meal and/or liquid fertilizer to promote heavier bloom. Once a year you can add compost and manure as soil amendments.

watering

Water on a regular basis. Though these vines are considered moderately drought-tolerant once established, they do best with regular irrigation and time between waterings to dry out a bit. In peak summer water it every day.

Propagation

Propagation is by cuttings as seeds are rarely produced

 

hardiness

Sandpiper vine is frost sensitive and prefers warm tropical climate. It grows best in Zones 9-11. In winter it can become dormant with little to no growth.

 

light

The vine thrives in full sunlight, it needs direct sunlight for 5–6 hours a day. It can tolerate semi-shade but should not be kept in full shade.

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