(Shinano-akigiri) Japan's largest island, Honshu, is home to Salvia koyamae, a shade- and moisture-loving herbaceous perennial that is perfect for woodland gardens or shady borders. It is notable for yellow flowers, which bloom from late summer into fall, as well as arrow-shaped foliage.
Common name This is the non-scientific name used for a plant. A plant may have several common names, depending on the gardener's location. To further confuse the matter, a common name may be shared by several completely different plants. At Flowers by the Sea, we rely on the scientific name to identify our plants and avoid confusion. | Japanese Yellow Sage |
USDA Zones The U.S. Department of Agriculture plant hardiness zones indicate the temperature zones where a plant is likely to thrive. It is determined by the average annual winter minimum temperature. Actual winter temperatures may be higher or lower than the average. | 5 - 9 |
Size (h/w/fh) The anticipated mature size of the plant: Height, Width & Flower Height. | 24"/24"+/30" |
Exposure This is the average amount of sunlight that a plant needs to thrive. Generally, full sun exposure is 6 or more hours of direct sun daily while partial shade is less than 4 hours of sun or dappled shade all day. Plants may tolerate more sunlight in cooler climates and need afternoon shade in extremely hot climates. | Partial to full shade |
Soil type This is the kind of soil that a plant needs to thrive. Most plants require a well-drained soil that allows the water to soak into the soil without becoming soggy. Sandy and clay soils can be improved by digging in compost to improve drainage. | Well drained & rich |
Water needs Plants have specific water requirements. Water loving means the plant needs regular watering to keep the soil moist. Average generally indicates applying 1 inch of water per week, or watering when the soil is dry to a depth of 3 to 4 inches. One inch of water is equal to 5 gallons per square yard of soil surface. | Average |
Container plant? "Yes" indicates that this plant can be successfully grown as a container plant. | Yes |
Mature height The mature height of this plant in average conditions. | 1 to 2 feet |
Mature spread The mature width of this plant in average conditions. | 1 to 2 feet |
(Shinano-akigiri) Japan's largest island, Honshu, is home to Salvia koyamae, a shade- and moisture-loving herbaceous perennial. It is notable for arrow-shaped foliage and translucent, yellow flowers blooming from late summer into fall.
Large and lush, the yellow-green hairy leaves of this sage form loose, gently spreading clumps. Although it can tolerate some morning sun, this is a shade-loving sage. It is a hardy choice for shady groundcovers, borders, containers, woodland settings and moist areas.
An underused gem of a plant, Salvia koyamae and presents the added bonus of being disagreeable to deer. Highly recommended.