Althea Double White Blooms Tree
Althea ‘Double White’, also known as Rose of Sharon, is a stunning ornamental tree that showcases elegant, double-layered white blooms throughout the summer months. Its clean, crisp blossoms add a touch of sophistication to any landscape.
This deciduous tree is easy to grow, low maintenance, and highly drought tolerant once established. It’s a favorite among pollinators and provides long-lasting beauty in hedges, borders, or as a standalone feature tree.
- � Pure white, double-layered flowers
- � Attracts butterflies and hummingbirds
- � Compact and ideal for smaller landscapes
- � Drought tolerant once established
- ☀️ Thrives in full sun to partial shade
Tip: Prune in late winter to maintain shape and encourage more blooms.
Growing Zones: 5–9 outdoors
| Mature Height: | 8–12 feet |
| Mature Width: | 6–8 feet |
| Sunlight: | Full Sun to Partial Shade |
| Botanical Name: | Hibiscus syriacus ‘Double White’ |
| Growth Rate: | Moderate |
| Bloom Time: | Summer to Early Fall |
| Type: | Flowering Tree |
| Pollination: | Self-pollinating |
| Flower Color: | White (Double) |
FAQ’s
How tall does Althea Double White grow
It matures to about 8 to 12 feet tall and 6 to 8 feet wide.
When does it bloom
It blooms from mid-summer to early fall.
Is it drought tolerant
Yes, once established it is quite drought tolerant.
Can it be grown in a container
Yes, it can be grown in a large container with proper care and watering.
Is pruning necessary
Light pruning in late winter helps encourage more blooms and maintain shape.
| Size |
Liner/Starter, 1 Gallon, 2 Gallon, 3 Gallon, 5 Gallon, 7 Gallon |
|---|---|
| Type |
Potted, Bareroot |
| Multipack |
Single, Set of 2 |








