Big Daddy Hydrangea
Grow Big Daddy Hydrangea with morning sun and consistently moist soil
About Big Daddy Hydrangea
Big Daddy Hydrangea is a deciduous shrub prized for its enormous mophead blooms. It grows 5 to 6 feet tall and wide, making it ideal for foundation planting, hedges, and cut flowers. Gardeners grow it for reliable summer color from June through August, and for the ability to shift bloom color from blue to pink by adjusting soil pH.
This site covers everything to grow Big Daddy Hydrangea well: site selection and planting, watering and feeding, pruning, and common problems. You'll also find guidance on buying healthy plants. From foundation hedges to specimen shrubs to container growing, we walk you through step-by-step care and help you troubleshoot any challenges.
Buy Big Daddy Hydrangea
Nursery-grown plants shipped in their container, with our planting and care guides to go with them.
From $65.85
Sizes: 3 Gallon
Shop Big Daddy HydrangeaQuick facts
- USDA zones
- 6-9
- Mature height
- 5-6 ft
- Mature width
- 5-6 ft
- Sun
- part shade; best with morning sun and afternoon shade, tolerates more sun in cooler/coasta
- Water
- medium to high; wants consistently moist, never soggy or bone-dry soil
- Bloom time
- summer, roughly June-August depending on region
- Bloom color
- blue or pink depending on soil pH (aluminum uptake); can also appear purple/lavender at in
- Growth rate
- moderate, roughly 12 in/year until mature size is reached
- Deer resistance
- low; hydrangeas are frequently browsed by deer
- Plant type
- deciduous shrub
- Mophead bloom color shifts blue-to-pink based on soil pH and aluminum uptake, not fertilizer color alone
- Blooms on old wood, so prune only right after flowering
- Reaches about 5-6 ft tall and wide at maturity
- Prefers morning sun with afternoon shade and consistently moist soil
- Toxic to pets if ingested
- Sold as a #3 container shrub, ready for immediate landscape planting
Growing guides
Core guideBig Daddy Hydrangea Care: The Complete Growing Guide
Learn how to care for Big Daddy Hydrangea with our complete growing guide covering planting, soil pH, watering, pruning, and seasonal care.
Core guideHow to Plant Big Daddy Hydrangea for a Strong Start
Learn how to plant Big Daddy Hydrangea correctly for beautiful blooms. Step-by-step guide with timing, soil prep, spacing, and first-year ca
Plant specificBig Daddy Hydrangea Bloom Color: Blue, Pink or Purple?
Control Big Daddy Hydrangea bloom color by adjusting soil pH. Learn how to grow blue or pink flowers with aluminum sulfate and garden lime.
Core guideWhen and How to Prune Big Daddy Hydrangea Correctly
Learn when and how to prune Big Daddy Hydrangea correctly to maximize blooms. Step-by-step guide to pruning old-wood bloomers.
Core guide9 Common Big Daddy Hydrangea Problems and How to Fix Them
Fix 9 common Big Daddy Hydrangea problems: wilting, brown leaves, pests, diseases & more. Expert diagnosis and solutions.
Core guideBig Daddy Hydrangea Buying Guide: What to Look for
Learn what to look for when buying Big Daddy Hydrangea. Expert tips on quality indicators, sizes, colors, and where to find the best nursery
Core guideBig Daddy Hydrangea Sun Requirements: How Much Light?
Learn exactly how much sun Big Daddy Hydrangea needs. Part shade guidelines, coastal exceptions, and step-by-step placement tips for summer
Core guideWatering Big Daddy Hydrangea: A Complete Guide
Learn how to water Big Daddy Hydrangea properly to prevent drooping. Step-by-step guide with seasonal tips and common watering mistakes.
Core guideBest Soil for Big Daddy Hydrangea and How to Amend It
Learn the best soil for Big Daddy Hydrangea and how to amend it for healthy blooms. pH testing, drainage, and step-by-step amendment guide.
Core guideBig Daddy Hydrangea Hardiness Zones: Where Will It Grow?
Big Daddy Hydrangea thrives in USDA zones 6 to 9. Learn frost protection, zone-specific care, and whether this mophead hydrangea will grow i
Core guideHow Big Does Big Daddy Hydrangea Get at Maturity?
Big Daddy Hydrangea grows 5-6 feet tall and wide. Learn its growth rate, spacing, container options, and timeline from nursery experts.
Core guide12 Landscape Design Ideas for Big Daddy Hydrangea
Discover 12 landscape design ideas using Big Daddy Hydrangea: companion plantings, placement tips, garden designs for zones 6-9.
Big Daddy Hydrangea questions
Why didn't my Big Daddy Hydrangea bloom this year?
Most likely the flower buds were lost to a late spring frost or the shrub was pruned at the wrong time (fall, winter, or early spring), since it sets buds on old wood the previous season.
How do I get blue instead of pink flowers?
Lower the soil pH (more acidic, around 5.5 or below) and ensure aluminum is available, often with an aluminum sulfate soil drench; raising pH toward alkaline pushes blooms toward pink.
How much sun does it need?
It does best with morning sun and afternoon shade; too much hot afternoon sun causes wilting, especially in warmer zones.
When should I prune it?
Right after the flowers fade in mid-to-late summer, since next year's buds form on the current season's old wood shortly after that.