Mountain Hydrangea 'Blue Billows' (Hydrangea serrata 'Blue Billows') brings refined lacecap blooms and handsome foliage to borders, woodland edges, and containers. You will get the best color and bloom quality in evenly moist, fertile, well-drained soil with plenty of organic matter, plus a mulch layer to keep roots cool and reduce moisture swings.

Give your plant morning sun and afternoon shade, or bright dappled light. In warmer climates, protect it from hot late-day sun to reduce leaf scorch and help the flowers last. Space plants so air can move through the branches, and water at the base during dry spells for the most consistent growth.

'Blue Billows' flowers on old wood, so prune sparingly and only after it finishes blooming. Remove winter-damaged stems in early spring, but avoid cutting back heavily or you may remove next season's flower buds. In colder areas, site it out of wind and consider extra winter protection to help preserve buds.

Flower color can shift with soil conditions: more acidic soils tend to push blooms bluer, while higher pH can bring pink to purplish tones. Watch for common hydrangea issues like powdery mildew or leaf spots, and keep foliage as dry as practical with good spacing and watering habits.

Specifications

• Cold hardiness zone: 6-9 (-10 degrees F) - Contact your local extension to confirm hardiness if you are in a fringe zone (we cannot guarantee hardiness in fringe zones)
• Light: Full sun   Part sun
• Growth rate: Moderate
• Mature height: 36-48"
• Spread: 60-72"

Shipping

FREE SHIPPING - Classy Groundcovers offers free shipping, and your plants never spend more than three days in transit.

Precise delivery - another benefit from shopping with us is that you know hpw to control exactly when your order will be shipped.

Shipping information that applies to all plants:
- When We Ship
- You May Specify Your Shipping Date
- Lookup Shipping Date and Tracking Information
- Special Delivery Instructions
- Changing Your Shipping Date
- Accepting Delivery
- Unpacking Your Order
- Returns

Care