Bigleaf Hydrangea 'Light O Day': Variegated Lacecap with Seasonal Interest

Bigleaf Hydrangea 'Light O Day': Foliage and Flowers in Harmony

Hydrangea macrophylla 'Light O Day' (also known as 'Bailipse') distinguishes itself with striking variegated foliage that illuminates the shade garden long before its delicate lacecap flowers appear. A sport of the popular 'Mariesii', this cultivar adds a new dimension to the lacecap class.

Variegated Foliage

The leaves are broadly ovate with irregular, creamy-white margins that vary in width, creating a luminous effect in dappled light. The variegation is stable and does not revert readily. In spring, new growth often emerges with pinkish tints. This foliage alone makes 'Light O Day' a valuable shade plant, providing season-long interest even when not in bloom.

Delicate Lacecaps

In early summer, flattened lacecap inflorescences appear, with a central cluster of tiny fertile flowers—blue in acid soil, pink in alkaline—surrounded by a ring of showy sterile florets. The flower heads are 4–6 inches across, held on the previous year's wood. The overall effect is airy and refined, contrasting nicely with the bold foliage.

The plant forms a rounded shrub 3–4 feet tall and wide.

Growing Conditions

Prefers bright shade or morning sun only—harsh sun can scorch the variegated leaf margins. Moist, well-drained, humus-rich soil is essential. Hardy in USDA zones 6–9. Blooms on old wood; prune sparingly after flowering. The variegation means slightly less chlorophyll, so it may be less vigorous than solid-green cultivars.

Taxonomic Profile

• Family: Hydrangeaceae
• Genus: Hydrangea
• Species: macrophylla
• Cultivar: 'Light O Day' (syn. 'Bailipse')

Design Potential

Use 'Light O Day' to brighten dark corners, underplant beneath deciduous trees, or combine with solid-green hostas and ferns for textural contrast. The variegation echoes white-flowering companions like astilbe 'Bridal Veil' or white Japanese anemone. A luminous presence in the woodland garden.