(Forysthia Sage) This statuesque perennial grows up to 10 feet tall, but spreads only 3 feet wide. It is a late bloomer from Mexico's Sierra Madre Oriental mountains where it grows at altitudes of 4,000 to 5,000 feet and tolerates temperatures down to 20 degrees F.
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. | Forsythia Sage or Big 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. | 7 - 11 |
Size (h/w/fh) The anticipated mature size of the plant: Height, Width & Flower Height. | 96"/36"/120"+ |
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. | Full sun to partial 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 |
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 |
Hummingbird plant? Hummingbirds have been observed regularly feeding from this plant's flowers. | Yes |
Mature height The mature height of this plant in average conditions. | 6 feet plus |
Mature spread The mature width of this plant in average conditions. | 6 feet plus |
(Forysthia Sage) This statuesque perennial grows up to 10 feet tall, but spreads only 3 feet wide. It is a late bloomer from Mexico's Sierra Madre Oriental mountains where it grows at altitudes of 4,000 to 5,000 feet and tolerates temperatures down to 20 degrees F.
Short periods of colder temperatures don't kill this tough sage. When knocked out by frigid weather, it usually comes back from root stock. A single plant forms a multi-stemmed thicket through slowly spreading rootstock, but can easily be kept tidy by removing unwanted stems.
Give this sage morning sun and afternoon shade as well as ample water. From fall until frost -- or into spring in mild winter areas -- it will reward you with buttery yellow flowers that make this shrub look like a Forsythia from a distance. But get up close and you will notice that it has roughly textured, heart shaped leaves as well as thick, square stems.
You can grow Forsythia Sage as a screen, border or background plant. It even does well in containers. We love to plant Bog Sage, Salvia uliginosa at its base for a bright blue floral contrast.