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        • Buchanan’s Native Plants has been serving Houston gardeners since 1986. Located in the historic Houston Heights, the garden center is dedicated to native plants and organic gardening.  You will find the best selections of hardy natives as well as perennials, herbs, vegetables, trees, shrubs & roses — all suited to the Houston climate.

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Home » Plant Library » Vines » Amethyst Passion Flower
Amethyst Passion Flower | Passiflora 'Amethyst'

Amethyst Passion Flower

Botanical name: Passiflora ‘Amethyst’

A truly spectacular vine for the garden; the large purple and blue flowers are very distinctive; wonderful for covering an arbor, trellis or lattice, the flowers are individually beautiful close up.

  • Characteristics
  • Features and Attributes
  • Planting and Growing

Characteristics

Hardiness zone 7a
Flower color purple
Foliage type deciduous *
Plant form spreading
Mature height 15 feet
Spread 30 inches
Light requirements

full sun to partial shade

Moisture requirements

average to moist

Plant origin hybrid

* deciduous = loses leaves in winter

Ornamental Features

Amethyst Passion Flower features showy lightly-scented purple star-shaped flowers with white eyes and blue anthers at the ends of the branches in mid summer. The flowers are excellent for cutting. It has dark green foliage throughout the season. The compound leaves do not develop any appreciable fall color. The fruit is not ornamentally significant.

Landscape Attributes

Amethyst Passion Flower is a multi-stemmed deciduous woody vine with a twining and trailing habit of growth. Its average texture blends into the landscape, but can be balanced by one or two finer or coarser trees or shrubs for an effective composition.

This is a relatively low maintenance woody vine, and is best cleaned up in early spring before it resumes active growth for the season. It has no significant negative characteristics.

Amethyst Passion Flower is recommended for the following landscape applications;

Accent, Hedges/Screening, General Garden Use

Planting and Growing

Amethyst Passion Flower will grow to be about 15 feet tall at maturity, with a spread of 30 inches. As a climbing vine, it tends to be leggy near the base and should be underplanted with low-growing facer plants. It should be planted near a fence, trellis or other landscape structure where it can be trained to grow upwards on it, or allowed to trail off a retaining wall or slope. It grows at a fast rate, and under ideal conditions can be expected to live for approximately 10 years.

This woody vine does best in full sun to partial shade. It does best in average to evenly moist conditions, but will not tolerate standing water. It is not particular as to soil type, but has a definite preference for alkaline soils. It is somewhat tolerant of urban pollution. Consider applying a thick mulch around the root zone in winter to protect it in exposed locations or colder microclimates. This particular variety is an interspecific hybrid.

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Buchanan’s Native Plants
611 East 11th Street
Houston, Texas 77008

713-861-5702

Hours: 9 am – 6 pm
Open Every Day – Monday – Sunday

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