Boehmeria platyphylla is a perennial plant native to East Asia, including Japan, China, and Korea. It features broad, heart-shaped green leaves with a slightly serrated edge and a soft texture. Its upright stems and dense foliage lend a lush, woodland appearance ideal for shaded or naturalistic gardens.
| KEY PLANT INFORMATION | |
|---|---|
| Plant Type: | Herbaceous perennial |
| Plant Colours: | Green / Red |
| Flowering period: | Late summer |
| Mature Height: | 60–120 cm tall (about 2–4 feet) |
| Light Requirements: | Partial shade – Full shade |
| Water Requirements: | Moderate |
| Cold Hardiness: | -15°C (5°F) |
| Difficult: | Easy |
Plant Type
Herbaceous perennial
Boehmeria platyphylla is a herbaceous perennial in the nettle family (Urticaceae), though it lacks stinging hairs. Grown primarily for its attractive foliage rather than flowers, it brings a rich, textural element to garden understories. It spreads gently to form clumps and suits borders, woodland edges, or shaded mixed plantings.
Mature Height
60–120 cm tall (about 2–4 feet)
At maturity, Boehmeria platyphylla typically reaches 60–120 cm tall (about 2–4 feet). It forms a bushy clump with upright stems and large, overlapping leaves that create a bold, architectural presence. Its modest height and full foliage make it an excellent mid-layer plant in shaded compositions.
Light Requirements
Partial shade – Full shade
This species prefers partial to full shade, thriving in dappled sunlight under trees or along woodland edges. Too much direct sun may scorch its leaves, while deep shade can reduce vigor. A balance of filtered light ensures healthy growth and maintains the rich green colour of its foliage.
Water Requirements
Moderate
Boehmeria platyphylla favours consistently moist, humus-rich soil. It performs best in conditions similar to its native forest floor—cool, damp, and well-drained. Regular watering is essential during dry spells, as the plant dislikes drought. Mulching helps retain soil moisture and supports lush, continuous growth through the warm months.
Cold Hardiness
-15°C (5°F)
Boehmeria platyphylla is hardy to approximately -15°C (5°F), corresponding to USDA Zones 7–9. It tolerates mild frosts and may die back to the ground in colder winters, reemerging in spring. In regions with severe cold, a layer of mulch helps protect its roots from freezing temperatures.
