This species is very close to Lespedeza davurica (Laxm.)Schindl., and is considered by some botanists to be conspecific with it[].

Common Name:

General Information

Lespedeza potaninii is a perennial plant with procumbent to ascending stems that are much-branched at the base; the stems become more or less woody and persist, the plant growing 20 - 60cm tall[].
The plant is cultivated as a soil stabilizer and improver in arid regions[].

Known Hazards

None known

Botanical References

Range

E. Asia - northern and central China

Habitat

Desert steppes, sandy soils of steppe zone, rocky soils, hills, rocky slopes, foot of mountains[].

Properties

Other Uses Rating
Habit	Deciduous Shrub
Height	0.50 m
Pollinators	Insects, Cleistogamous
Self-fertile	Yes
Cultivation Status	Cultivated

Cultivation Details

Lespedeza potaninii is a very cold-hardy plant, the rootstock being able to tolerate temperatures down to about -30°c when fully dormant. The top growth is much less hardy, however, and will be killed back to near the roots in all but very mild winters. However, plants will generally resprout freely from the base in the following spring and then flower in late summer[]. A long growing season is required if the seed is to ripen successfully, and a hot summer will more fully ripen the wood, thus making it more likely to survive the winter[].
Species in this genus generally grow best in a sunny position but are tolerant of some shade. They grow well in soils of a medium to light nature, tolerating dry conditions and low fertility[]. Established plants are generally more or less drought tolerant[].
The plant produces cleistogamous flowers (closed flowers that produce fertile seed without being pollinated) as well as hermaphrodite flowes that are pollinated by insects, especially bees[].
This species has a symbiotic relationship with certain soil bacteria, these bacteria form nodules on the roots and fix atmospheric nitrogen. Some of this nitrogen is utilized by the growing plant but some can also be used by other plants growing nearby[].

Edible Uses

None known

Medicinal

None known

Agroforestry Uses:

Because this species tolerates arid soils and also fixes atmospheric nitrogen, it is grown for sand stabilization, and soil conservation[].

Other Uses

None known

Propagation

Pre-soak the seed for 24 hours in warm water and then sow it in spring in a greenhouse. When they are large enough to handle, prick the seedlings out into individual pots and grow them on in the greenhouse for at least their first winter. Plant them out into their permanent positions in late spring or early summer, after the last expected frosts.
Cuttings of half-ripe wood, 7 - 10cm with a heel, mid summer in individual pots in a frame. It can be difficult to get the cuttings through their first winter, it is best to plunge the pots in a bed of ashes in a sheltered border outdoors[].