Striking Bicolor Flowers
Recognized for deep red petals with a contrasting silvery-white reverse that creates a distinctive floral appearance.
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Osiria Hybrid Tea Rose is an ornamental rose admired for its dramatic bicolor flowers, featuring deep red inner petals and contrasting silvery-white outer petals. Known for its elegant flower shape and classic rose fragrance, this rose adds a distinctive appearance to garden beds, borders, and floral displays. It is associated with the hybrid tea rose group and is valued by rose enthusiasts for its unusual color combination. Please note that seed-grown roses may differ from the original Osiria cultivar in flower color and other characteristics.
Recognized for deep red petals with a contrasting silvery-white reverse that creates a distinctive floral appearance.
Known for its pleasant traditional rose fragrance that adds appeal to ornamental gardens.
Features the classic upright growth and elegant flower form associated with hybrid tea roses.
Suitable for ornamental garden displays, rose collections, landscape borders, and cut-flower arrangements.
| Scientific Name | Rosa 'Osiria' (Hybrid Tea Rose) |
| Common Name | Osiria Rose; Osiria Hybrid Tea Rose |
| Plant Family | Rosaceae |
| Seed Type | Hybrid Rose Seeds — offspring may vary from the named cultivar |
| Growth Habit | Upright, bushy flowering shrub |
| Flower Color | Deep red with a silvery-white reverse |
| Flower Type | Double, hybrid tea-style blooms |
| Flower Fragrance | Traditional rose fragrance |
| USDA Hardiness Zones | Approximately Zones 7–10; climate suitability varies |
| Planting Season | Spring, after suitable seed preparation |
| Growing Season | Spring through fall, depending on climate |
| Sowing Method | Indoor seed starting after cold stratification |
| Germination Time | Variable; depends on seed viability and stratification |
| Germination Temperature | Approximately 65–70°F (18–21°C) after stratification |
| Sunlight Requirements | Full sun, approximately 6 hours or more daily |
| Soil Requirements | Fertile, well-drained soil rich in organic matter |
| Watering Needs | Regular, deep watering; avoid waterlogged soil |
| Mature Plant Size | Approximately 3–5 feet tall, depending on growing conditions |
| Plant Spacing | Approximately 3–4 feet for established shrubs |
| Propagation | Seeds for variable seedlings; cuttings and grafting for cultivar preservation |
Osiria Hybrid Tea Rose is admired for its dramatic red-and-white floral appearance, elegant blooms, and traditional rose fragrance. With suitable sunlight, fertile soil, regular watering, and proper care, rose seedlings can develop into attractive flowering plants. Remember that seed-grown plants may not reproduce the original Osiria flower characteristics exactly.
Find helpful answers about Osiria Hybrid Tea Rose seed preparation, flower colors, and growing requirements.
No. Osiria is a named hybrid rose cultivar, and seeds produced through sexual reproduction do not reliably retain its original characteristics. Seedlings may develop different flower colors, shapes, and growth habits. Vegetative propagation, such as cuttings or grafting, is used to preserve the named cultivar.
Osiria is recognized for its distinctive bicolor appearance, with deep red inner petal surfaces and silvery-white outer surfaces. This contrasting coloration gives the rose its characteristic ornamental appeal.
Rose seeds commonly need cold-moist stratification before sowing. Place cleaned seeds in a lightly moist growing medium under refrigeration for a suitable period, then sow them in a well-drained seed-starting mix. Germination time varies with seed freshness and preparation.