A rare and attractive form of Blue Crown Passionflower, White Crown’s pure white petals and filaments distinguish it from its cousin. White Crown Passionflower is evergreen to about 15º F. Mulching with straw or other similar material during severe cold will help insulate the roots.
Latin Name: Passiflora caerulea ‘Alba’
Site and Soil: Passionflowers like 1/2 day to full sun and well-drained soil.
Pollination Requirements: White Crown Passionflower is hardy to about 12 F. Mulch the base of the plant during severe cold.
Hardiness: White Crown is hardy to about 10 F. Mulch the base of the plant during severe cold.
Size at Maturity: 8-10 ft. in width on fence, trellis, arbor or other support.
Bloom Time: July to Fall
Pests & Diseases: Passionflowers are not bothered by pests or diseases.
USDA Zone: 8
Sunset Western Zone: 5-9, 12-24, H1, H2
Sunset Northeast Zone: 31, 32, and indoors