Hydrangea ‘Sister Theresa’

Hydrangea macrophylla ‘Sister Theresa’

‘Sister Theresa’ is a beautiful mophead hydrangea with large clusters of creamy white flowers that may show hints of pink as they age. Its clean, lush green foliage provides a rich backdrop for the blooms, making it a standout in any shade garden or woodland border.

This variety blooms in summer and often continues into fall, with flowers held upright on strong stems. It prefers partial shade and moist, well-drained soil for best performance.

• 🤍 White mophead flowers with pink tints in aging blooms
• 🌿 Dark green foliage contrasts beautifully with blooms
• 🌤️ Best in part shade; tolerates full shade
• 📏 Mature Size: 3–5 ft. tall and wide
• 🪻 Great for borders, foundation plantings, and cut flowers

Note: Unlike blue/pink hydrangeas, ‘Sister Theresa’ maintains white blooms regardless of soil pH.

Do the blooms change color based on soil pH?

No. Unlike blue/pink hydrangeas, ‘Sister Theresa’ remains white regardless of pH.

How much sunlight does it need?

It prefers part shade but can thrive in full shade with moist, well-drained soil.

Can I use it for cut flowers?

Yes! The large, showy blooms are excellent for fresh or dried arrangements.

Is it cold-hardy?

Yes, it’s hardy in USDA Zones 5–9 and performs well in cool climates.

Does it need pruning?

Minimal pruning is needed. Remove dead wood in early spring if necessary.