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Amethyst Oakleaf Hydrangea

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Amethyst Oakleaf Hydrangea
Hydrangea quercifolia  'Amethyst'

USDA Plant Hardiness Zones: 5a-9b  Find Your Zone >  

Note: For our customers who live and garden north of USDA Cold Hardiness Zone 5a, where this Hydrangea is not reliably winter hardy, you'll be happy to know that it can be grown in containers that can be brought indoors during winter and place back outside when temperatures warm up in spring.



Special Attributes

Amethyst is a semi-dwarf Oakleaf Hydrangea with gorgeous white panicle type flowers that turn to a beautiful wine-red. A native of the U.S., the Oakleaf Hydrangea is a very fast growing and easy-to-grow shrub and are well known for their long bloom period that starts in summer and continues well in to fall. The large, oblong to cone-shape flower clusters grow up to 8 inches in length. Hence it's name Oakleaf  Hydrangea's distinguishing characteristic is its large leathery oak leaf shaped foliage.



Landscape & Garden Uses

Growing in a mound to only 5-6 feet tall and 4-5 feet wide, Amethyst Oakleaf Hydrangea is an excellent selection for smaller garden spaces where larger oakleaf hydrangeas won't fit. Amethyst is ideal for use as an accent or specimen, in groupings or mass plantings, or as a low, natural hedge in landscape and flowering shrub borders or home foundation plantings. Its smaller size makes it perfect for use in pots, planters and other containers of 14 inches or more in rim diameter. Right at home in the partially sunny woodland border or cottage and cut flower gardens. Also a nice addition to white color themed gardens and tropical-look gardens.

Suggested Spacing:  3-4' for hedge;  8' or more for space between plants




Cultural Preferences

Amethyst Oakleaf Hydrangea is very easy to grow in most any moist but well-drained, soil with average fertility and full sun to part shade in northern zones where it will grow and shade to part shade (morning sun with afternoon shade or filtered sun) in southern zones. It prefers a soil rich in organic matter. For best flowering, we suggest 6 hours of direct sun light per day. As with so many other ornamental plants, a constantly soggy or wet soil is problematic. Highly resistant to pests and diseases.

Note:  Amethyst is a Hydrangea quercifolia (oakleaf) species that produces its flowers from buds that formed on "old wood" (during the previous year). Oakleaf hydrangeas typically require little to no pruning. They are best left alone. That said they can be pruned to remove a stray branch or to reduce size. 

For proper pruning time and techniques on various types of Hydrangea see:  How To Prune Various Types Of Hydrangea 



Helpful Articles

Click on a link below to get helpful advice from our experts on how to plant and care for Oakleaf Hydrangeas.






Plant Details

USDA Plant Hardiness Zones: 5a-9b  Find Your Zone >  
Plant Type:  Deciduous Flowering Shrub
Height at Maturity:  5-6'
Width at Maturity:  4-5'
Growth Habit / Form:  Bushy, Upright
Flower Color:  White fading to Wine Red
Flower Size:  Large , up to 8"
Flowering Period:  Summer & Fall
Flower Type:  Single in large, long clusters
Fragrant Flowers:  No
Foliage Color:  Green shades
Fragrant Foliage:  No
Berries:  NA
Berry Color:  NA
Sun Needs:  Part Shade (morning sun with afternoon shade or all day filtered sun)
Water Needs:  Average, low when established
Soil Type:  Clay (amended), Loam, Sand (amended), Silt 
Soil Moisture / Drainage:  Well Drained Moist
Soil pH:  5.5 - 7.5 (Acid to Slightly Alkaline)
Maintenance / Care:  Very Low
Attracts:  Visual Attention
Resistances:  Disease, Drought (when established in part shade), Heat, Humidity, Insect, Mildew



Plant Long & Prosper!

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