Green Promise Farms Hydrangea 'Annabelle' Smooth Hydrangea — 3-Gallon White Mophead, Large Blooms

This Green Promise Farms Hydrangea arb. 'Annabelle' arrives established in a 3-gallon trade pot and is prized for its dramatically large, round white flower heads that can reach up to a foot across. Bred from a fortunate discovery in Anna, Illinois, 'Annabelle' combines old-fashioned charm with modern garden reliability: long-lasting summer blooms, adaptability to sun or partial shade, and ease of care for both beginning and experienced gardeners.

How large will my 'Annabelle' hydrangea grow and when does it bloom?

This cultivar typically reaches 3–5 feet tall with a 4–6 foot spread at maturity, forming a rounded shrub that fills borders and foundation beds. Flowering begins in early summer and continues into September, with blooms often enlarging as the season progresses.

• Mature height: 3–5 ft; spread: 4–6 ft
• Blooms: June through September, often enlarging over summer
• Flower size: up to 12 inches across

What growing conditions does 'Annabelle' prefer and where should I plant it?

'Annabelle' is adaptable and performs well in well-drained soils across USDA Zones 4–8. It tolerates full sun to partial shade; in hotter climates some afternoon shade helps preserve bloom quality and prolong flowering.

• USDA zones 4–8 recommended
• Well-drained garden soil; tolerates a range of soil types
• Full sun to partial shade—afternoon shade in hot regions is beneficial

How do I plant and care for the 3-gallon specimen when it arrives?

Your plant ships fully rooted in a 3-gallon trade pot and can be planted as soon as weather allows, avoiding extreme cold or drought. Basic care—regular watering during establishment, a layer of mulch, and moderate pruning—will keep 'Annabelle' healthy and blooming year after year.

• Planting: set root ball slightly higher than surrounding soil; backfill and water thoroughly
• Water: consistent moisture while establishing; avoid prolonged drought
• Pruning: prune lightly or use support to prevent stems from bending under large blooms
• Shipping note: comes with planting and care instructions

Will the big flower heads need support and can I dry the blooms?

The exceptional bloom size can sometimes overburden thin stems; planting several together or using simple supports helps keep stems upright. The sturdy, long-lasting white flowers are excellent for fresh arrangements and can be dried for lasting indoor displays.

• Support options: cage, stakes, or mass-planting for mutual support
• Cut flowers: excellent for fresh bouquets and drying
• Stem strength improves with less aggressive pruning to encourage thicker canes

Who this plant suits: gardeners seeking a high-impact, low-fuss summer shrub for borders, cottage gardens, or mass plantings will appreciate 'Annabelle' from Green Promise Farms. It’s ideal for homeowners who want big, long-lasting white blooms with straightforward care, and for floral enthusiasts who value flowers that dry beautifully for arrangements.