Morina coulteriana

Morina coulteriana is a long-lived perennial in the honeysuckle family, Caprifoliaceae. Its native range spans Afghanistan, Central Asia and the western Himalaya. Records include Pakistan and parts of northern India. It grows in cold subalpine or subarctic regions. Wild plants occupy steep, grassy slopes in rather dry valleys. These sites lie at elevations of about 7,870–11,810 feet [2,400–3,600 metres].

Plants reach about 3.3 feet [1 metre] in height. Their flowers have a sweet scent, which adds garden interest. The supplied species evidence gives no flower colour or bloom dates. It also gives no details of fruit, leaves or stems. Suggested garden settings include planted beds and sunny woodland edges. These uses suit a plant grown for its scented flowers. Choose its site with care, since established plants dislike root disturbance.

Grow it in fertile soil with plenty of humus. The soil should hold moisture but let excess water drain. Sandy or gritty soil suits it, as does loam. It tolerates mildly acid, neutral and mildly alkaline conditions. A slightly acid soil is preferred. Give it sun, though light shade can also suit it. Some shade and shelter from strong winds may help. Keep the soil moist rather than choosing a dry garden site. Its dry-valley habitat does not replace its stated need for garden moisture. PFAF lists USDA zones 5–9 and cold tolerance to at least −4°F [−20°C].

Seed offers a way to raise plants while limiting root disturbance. Sow fresh seed in separate pots once it ripens. Keep these pots in a well-aired cold frame through winter. Stored seed can be sown in a cold frame in early spring. Move young plants to their final sites in summer. They should stand at least 0.5 feet [0.15 metres] tall first. Division is difficult, and divided plants can take time to recover. November root cuttings produce leaves before they form roots well. Keep them potted for a year before planting out.

PFAF records use of the plant as incense, without further details. It reports no known food or medicinal uses. It also lists no known hazards, but this does not establish safety for eating. The supplied evidence names no pests or diseases. Root disturbance remains a clear concern when moving or dividing plants. PFAF does not flag the species as weedy.