The Kew trees are growing in "slightly acidic, open, peat free, multipurpose substrate compost with added Perlite and fine bark" according to Vanderplank.
''Passiflora xishuangbannaensis | Passiflora vitifolia | Passiflora tarminiana | Passiflora nitida | Passiflora mixta | Passiflora ligularis | Passiflora foetida | Passiflora edulis | Passiflora capsularis |