Silvery Foliage
Produces attractive narrow leaves with a distinctive silver-gray appearance that adds texture to landscapes.
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Silver Cassia, botanically known as Senna artemisioides, is an attractive evergreen ornamental shrub native to Australia. It is admired for its delicate silver-gray foliage and clusters of bright yellow flowers that typically bloom during winter and spring. This drought- tolerant plant is suitable for sunny gardens, landscape borders, rock gardens, hedges, and dry-climate planting areas. Its distinctive foliage creates an attractive contrast with its cheerful yellow blossoms.
Produces attractive narrow leaves with a distinctive silver-gray appearance that adds texture to landscapes.
Develops clusters of cheerful yellow, pea-shaped flowers that provide seasonal ornamental interest.
Adapts to dry growing conditions once established and generally requires limited supplementary watering.
Suitable for garden borders, screening, rock gardens, and low-maintenance landscape planting.
| Scientific Name | Senna artemisioides |
| Synonym | Cassia artemisioides |
| Common Name | Silver Cassia; Silver Senna; Feathery Cassia |
| Plant Family | Fabaceae |
| Seed Type | Ornamental Shrub Seeds |
| Plant Type | Evergreen Perennial Shrub |
| Native Origin | Australia |
| Growth Habit | Upright, bushy, and spreading |
| Foliage Color | Silver-gray to gray-green |
| Flower Color | Bright Yellow |
| USDA Hardiness Zones | Generally Zones 8–11, depending on subspecies and climate |
| Planting Season | Spring to early summer |
| Seed Treatment | Scarification or carefully controlled hot-water treatment |
| Germination Time | Approximately 1–2 weeks after suitable seed treatment |
| Germination Temperature | Approximately 68–77°F (20–25°C) |
| Sunlight Requirements | Full Sun |
| Soil Requirements | Sandy, loamy, or rocky, well-drained soil |
| Watering Needs | Low to moderate; reduce watering after establishment |
| Flowering Season | Winter to spring, depending on climate |
| Mature Plant Height | Approximately 3–10 feet |
| Mature Plant Spread | Approximately 3–6 feet |
| Plant Spacing | Approximately 3–6 feet, depending on intended use |
Silver Cassia adds distinctive silver-gray foliage and beautiful yellow flowers to ornamental landscapes. Its adaptable nature and drought tolerance make it an attractive choice for sunny gardens, dry landscapes, and low-maintenance outdoor spaces. Grow this Australian native shrub and enjoy its unique foliage and seasonal floral display.
Learn about Silver Cassia seed preparation, flowering, and suitable growing conditions.
Silver Cassia seeds have a hard outer coating that can restrict water absorption. Carefully nick or abrade the seed coat, or use a suitable hot-water treatment before sowing. Avoid damaging the inner seed when preparing it for germination.
Silver Cassia generally produces bright yellow, pea-shaped flowers during winter and spring. Flowering periods can vary depending on the local climate, subspecies, and growing conditions.
Yes, established Silver Cassia shrubs tolerate dry conditions and require relatively little supplementary watering. Plant them in full sun with well-drained sandy or loamy soil, and avoid prolonged waterlogging.