(Sao Borja Scarlet Sage) Three-inch-long, smokey purple blossoms that bloom from spring to fall are a major clue that this heat-tolerant perennial is not your grandmother's Scarlet Sage.
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. | Sao Borja Scarlet 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. | 9 - 11 |
Size (h/w/fh) The anticipated mature size of the plant: Height, Width & Flower Height. | 60"+/48"+/60"+ |
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 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 |
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. | 5 to 6 feet |
Mature spread The mature width of this plant in average conditions. | 5 to 6 feet |
(Sao Borja Scarlet Sage) Three-inch-long, smokey purple blossoms that bloom from spring to fall are a major clue that this heat-tolerant perennial is not your grandmother's Scarlet Sage.
Even when grown as an annual, Salvia splendens 'Sao Borja' brings a tropical look to any garden by reaching an impressive height of 6 feet or taller in one season.
This Brazilian native grows well in USDA Zones 9 to 11 where it is a tender perennial that may return yearly to the warmest parts of its range.
Sao Borja was discovered in the port city of Sao Borja, which is named after Spain's Saint Francis Borgia. The city is located on the Uruguay River, across from Argentina and in Rio Grande do Sul, which is the southernmost state of Brazil and borders the Atlantic coast.
To succeed, Sao Borja Scarlet Sage needs partial shade all day or a combination of morning sun and afternoon shade. It also requires rich soil and ample water for a spring surge of growth that needs to be seen to be believed. Use it as a screen, an accent plant or in a container, which will limit size.
Highly recommended.