Mixed Colour Flowers
Produces flowers in a range of colors, including pink, white, red, purple, and blue.
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Rose of Sharon (Hibiscus syriacus), also known as Shrub Althea, is a deciduous ornamental shrub that produces attractive trumpet-shaped flowers in mixed colors, including white, pink, red, purple, violet, and blue. Its upright growth habit and colorful summer blooms make it suitable for garden borders, hedges, and landscape planting. Plants grown from mixed-color seeds may produce different flower colors and forms.
Produces flowers in a range of colors, including pink, white, red, purple, and blue.
Features attractive single or double flowers with prominent central stamens.
Develops into a branching ornamental shrub suitable for borders and landscape displays.
Produces colorful flowers during summer and often continues into early autumn.
| Scientific Name | Hibiscus syriacus |
| Common Name | Rose of Sharon; Shrub Althea; Syrian Hibiscus |
| Plant Family | Malvaceae |
| Seed Type | Ornamental Flower Seeds |
| Growth Habit | Upright, branching deciduous shrub |
| Flower Color | Mixed White, Pink, Red, Purple, Violet, and Blue |
| Flower Form | Single or Double |
| USDA Hardiness Zones | 5–8 |
| Planting Season | Spring |
| Seed Starting | Start indoors or in a prepared nursery bed; seed pretreatment may improve germination |
| Germination Time | Approximately 2–4 weeks, depending on conditions |
| Germination Temperature | Approximately 68–77°F (20–25°C) |
| Sunlight | Full Sun to Partial Shade |
| Soil Requirements | Moist, well-drained soil |
| Watering | Regular watering during establishment; moderate moisture afterward |
| Mature Plant Size | Approximately 8–12 feet tall and 6–10 feet wide |
| Plant Spacing | Approximately 6–10 feet, depending on intended use |
Mixed Colour Rose of Sharon adds beautiful seasonal flowers and attractive foliage to home gardens and landscapes. With its variety of flower colors, upright growth, and summer blooming habit, Hibiscus syriacus is a lovely choice for ornamental borders, hedges, and garden displays.
Learn about Rose of Sharon flower colors, seed germination, and flowering.
Rose of Sharon can produce white, pink, red, purple, violet, and blue flowers, including varieties with contrasting centers. The exact colors and flower forms depend on the genetics of individual seedlings, so a mixed-color seed collection may produce different combinations.
Soak the seeds in warm water for several hours before sowing. Lightly scarifying the hard seed coat can also help. Sow in a well-drained seed-starting mix, maintain temperatures around 68–77°F, and keep the medium evenly moist until seedlings emerge.
Rose of Sharon grown from seed generally takes a few growing seasons to develop into a mature flowering shrub. Flowering time varies with growing conditions, climate, and seedling development. Established plants typically produce their main floral display during summer and may continue into early autumn.