| General Description | Hibiscus syriacus 'Notwoodthree' is a vigorous, woody deciduous shrub with large, uniquely-shaped, purple-blue, double flowers. |
| ID Characteristic | Upright, somewhat outwardly spreading, freely branching, large purple-blue, double blooms. |
| Propagation | By softwood cuttings: rooting takes about 3 weeks to initiate at 27° C, young plants about 4 months at the same temperature. |
| Notable Specimens | The A. M. Cuddy Gardens, Strathroy, Ontario, Canada. |
| Habitat | Horticultural origin. |
| Bark/Stem Description | Young lateral branches are smooth, glabrous. Mature bark is woody. |
| Flower/Leaf Bud Description | About 1.4 cm in diameter, 2 cm long, ovate. |
| Leaf Description | Alternate, simple, smooth and glabrous, 4 ⨉ 7 cm, ovate to rhombus-shaped, wedge-shaped base, acute apex, margin crenate and lobed, venation palmate and reticulate. |
| Flower Description | Showy, terminal and axillary, 9 cm in diameter, 5 cm long, single rotate with a whorl of 5 blue-purple exterior petals with mauve venation and about 26 overlapping petaloids of the same colour in several interior whorls, margins undulate, white stamen. There are about 6 - 8 per lateral branch. Blooms last about one day on the plant. |
| Fruit Description | Seed and fruit growth have not been observed on this Hibiscus cultivar. |
