Pruning & Bloom

Rose of Sharon flowers on new growth, which makes late-winter or early-spring pruning useful when a plant needs shaping. Established plants are adaptable, but flowering is strongest with good light and reasonable moisture.

About This Variety

Hibiscus syriacus 'Blue Bird Hibiscus syriacus 'Oisaeu Bleau' FEATURES Winner of the Royal Horticultural Society's Award of Garden Merit! We are so pleased to be offering and growing this gorgeous variety which many consider to be the quality single blue-flowered Rose of Sharon on the market. Loaded with an abundance of violet-blue flowers with ruby-red centers, Blue Bird is ideal as a hedge, foundation or specimen planting.

One of its most exciting attributes is its long bloom time from mid-summer to frost which occurs after many other plantings have finished blooming for the season. Grows 6-8' tall and 6' wide. Full to parital sun.

This variety was introduced in 1958 and is still sought after and popular amongst growers and in 2028 will be 70 years old. We have read grafted plants have improved vigor than own root plants. We haven't seen a difference so far.

CHARACTERISTICS Plant Type: Shrub or Tree Shrub Type: Deciduous Flower Color: Blue Habit: Upright Vase Shape Shrub Spacing: 6 Feet Spread: 4 - 6 Feet Flower Shade: Blue Container Roll: Thriller Height Category: Tall Shrub Height: 6 - 8 Feet Foliage Colors: Green Foliage Shade: Green Common Names: Rose of Sharon Althea Invasiveness: This variety is sterile and produces little to no seeds.