What Are the Moisture Requirements for violet passion flower?
Moist but well drained

violet passion flower · Passiflora × violacea
Under glass grow in loam-based potting compost such as John Innes No. 3 in full light with shade from hot sun. Water freely when in growth and sparingly in winter. Well suited for a conservatory. May be grown outdoors in most fertile, moist but well-drained soils in mild areas. Hardy to about -1°C, an excellent drainage is essential, but best grown under cover. Provide support for climbing stems and shelter from cold, drying winds
Moist but well drained