Celastrus orbiculatus – Oriental Bittersweet, Staff Vine (eastern Asia)
Habit: Twiner/trellis climber, 8-12 m tall, 2-6 m wide, with loose twigs reaching up to some 2 m; support diameter for young plants 1-2 cm, for older plants 8-10 cm, sometimes 20 cm; fast-growing, 70-200 (300) cm a year after the 3rd to 5th year.
Flowers: Dioecious, sometimes hermaphrodite, green, inconspicuous, June.
Fruits: Pea-size, from September on, yellow when closed; orange-red when open, very persistent, very decorative; unpalatable, plant several specimen together to increase fruit production.
Leaves: Ovoid to roundly elliptical, fresh green, splendid yellow in September.
Roots: Shallow, forms runners.
Demands: Sun and semi-shade, possible in shade but loose and without fruit; tolerates heat, very frost hardy; good for urban areas, usually wind resistant.
Soil: Moderately dry to moist; acidic to alkaline; the more nutritious, the faster it grows, all substrates.
Note: Also draping, 2-3 m long; trees up to 20 cm thick can be strangled when it grows well.
Hardiness: Zone 5b