Carex oshimensis Evergold- Variegated Japanese Sedge
Carex oshimensis Evergold; first described in 1914 by the Japanese botanist Takenoshin Nakai; is native to dry forested areas and rocky slopes at mid elevations on the main island of Honshu in Japan. There has been much confusion surrounding the cultivar and numerous names have been applied to it. Originally named as Carex morrowii 'Old Gold' then later as Carex morrowii 'Aureovariegata'. Carex morrowii is a valid name for a sedge that also grows in Japan but following the treatment in Rick Darke's book; ""The Color Encyclopedia of Ornamental Grasses"" and the New Ornamentals Society listing on Carex; the name now in use for this plant is Carex oshimensis 'Evergold' A clumping forming evergreen sedge with arching narrow leaves that have a creamy yellow central stripe and dark green margins. In later winter the brownish insignificant flowers rise not much above the foliage before arching downward and are best trimmed off with an annual cut back of the plant in spring. Plant in part cool sun to light shade and irrigate regularly to occasionally; allowing the soil to dry between watering - surprisingly drought tolerant for a sedge. It is very striking as an accent plant or ground cover; in rock gardens and in mass plantings where it can luxuriate in morning sun or bright shady locations. Also useful as a marginal plant; but dislikes complete submersion. Makes a great statement; particularly in containers. If planting in a pot or other small container. Use a good quality John Innes compost as this plant will be there a long time and peaty types of compost eventually degrade and become too packed and choke the roots. Ensure you feed regularly as a hungry plant is a poor performer. We recommend Osmoscote pro 8-9 month applied in the early spring. One application gives all the nutrients the plant requires for the whole year. John Innes is a soils based compost. Do not allow the pot or containers to dry out.For more in .