Clusters of Colorful Flowers
Produces dense clusters of small, star-shaped flowers in rosy red, crimson, and pink shades.
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Jupiter's Beard, botanically known as Centranthus ruber, is a perennial flowering plant admired for its clusters of small, star-shaped flowers in shades of rosy red, crimson, and pink. Also called Red Valerian, this Mediterranean wildflower features attractive gray-green foliage and an upright, branching growth habit. It is suitable for cottage gardens, sunny flower borders, rock gardens, and informal landscape plantings. The plant prefers well-drained soil and can tolerate relatively dry conditions once established.
Produces dense clusters of small, star-shaped flowers in rosy red, crimson, and pink shades.
Develops as a perennial flowering plant that can return in suitable climates and growing conditions.
Features attractive gray-green to green leaves that provide foliage interest between flowering periods.
Its nectar-rich flower clusters can attract bees, butterflies, and other visiting pollinators.
| Scientific Name | Centranthus ruber (syn. Valeriana rubra) |
| Common Name | Jupiter's Beard; Red Valerian; Spur Valerian |
| Plant Family | Caprifoliaceae (formerly Valerianaceae) |
| Seed Type | Ornamental Flower Seeds |
| Plant Type | Herbaceous Perennial |
| Growth Habit | Upright, Clump-Forming, and Branching |
| Flower Color | Rosy Red, Crimson, and Pink; color varies by selection |
| Flower Shape | Small Star-Shaped Flowers in Dense Clusters |
| Blooming Season | Late Spring Through Summer; may continue into Fall |
| USDA Hardiness Zones | 5–8 commonly listed; regional tolerance may vary |
| Planting Season | Spring to Early Summer |
| Sowing Season | Spring; indoor starting is also possible in late winter |
| Sowing Months | February–June, depending on local climate |
| Seed Starting | Cover seeds lightly with a thin layer of growing medium |
| Germination Time | Approximately 14–21 days under suitable conditions |
| Germination Temperature | Approximately 16–21°C (60–70°F) |
| Sunlight Requirements | Full Sun to Partial Shade |
| Soil Requirements | Well-Drained, Sandy, Gravelly, or Moderately Fertile Soil |
| Soil pH | Neutral to Slightly Alkaline |
| Watering | Moderate during establishment; reduce once established |
| Mature Plant Height | Approximately 24–36 Inches |
| Plant Spread | Approximately 12–24 Inches |
| Plant Spacing | Approximately 12–18 Inches |
| Garden Uses | Cottage Gardens, Rock Gardens, Flower Borders, and Pollinator Gardens |
Wildflower Mix Jupiter's Beard Seeds offer an opportunity to grow a distinctive perennial with colorful flower clusters and attractive gray-green foliage. Its upright growth and tolerance of relatively dry, well-drained soil make it suitable for cottage gardens, rock gardens, and informal flower borders. Monitor self-seeding and check local invasive plant guidance before planting.
Find helpful answers about Jupiter's Beard seed starting, flowering season, and garden care.
Jupiter's Beard seeds generally germinate in about 14–21 days when provided with suitable moisture and temperatures around 60–70°F. After germination, seedlings need adequate sunlight and well-drained soil to develop into healthy plants. Flowering time depends on sowing date and growing conditions.
Jupiter's Beard commonly produces flower clusters from late spring through summer. In cooler summer climates, flowering may continue into early fall. Removing faded flower heads can encourage additional blooms and help prevent excessive self-seeding.
Jupiter's Beard can spread readily through self-sown seeds, especially in favorable growing conditions. Its seeds can be carried by wind after flowering. Remove spent flower heads before seeds mature if you want to control its spread. It is considered invasive or potentially invasive in some regions, so check local planting recommendations before growing it.