Hydrangea serrata (Mountain Hydrangea)
Color Name: Tuff Stuff Ah-Ha®
When it comes to blooming, Tuff Stuff Ah-Ha hydrangea can't stop and won't stop! At first glance, you'll fall in love with this beautiful mountain hydrangea for its waterlily-like double florets. But that's only part of the story, this is also one of the most prolific reblooming hydrangeas you'll ever see. All summer long, it devotes its energies to creating flower buds on its new growth so that you have a constant supply of fabulous blooms from early summer through frost. Tuff Stuff Ah-Ha hydrangea will bloom pink or blue, depending on soil chemistry.
Growing Tips: Mountain hydrangeas are from the same area of Japan as bigleaf hydrangeas but grow in the mountains instead of the seaside. As a result, they have naturally developed better cold tolerance and thus make an outstanding choice for gardens in USDA zones 5 and 6 especially.
Soil: Moist but well drained soils are best. Mountain hydrangeas are less susceptible to wilting than bigleaf hydrangeas, but cannot take soggy conditions for any period of time. Tolerant of a range of soil pH levels, however, soil pH will influence flower color.
Pruning: Avoid pruning mountain hydrangeas, except to remove any dead wood. These hydrangeas cannot be cut back or trimmed at any time of the year without impacting the bloom for either the current season or the next. Though they do rebloom readily on new wood, the best display comes from treating them as though they bloom only old wood.
Uses: Mountain hydrangeas can be used the same as bigleaf hydrangeas: perfect for flower gardens, cottage gardens, and seaside plantings. They also make a showy addition to foundation plantings and can be used for low hedges or edging.
Photo courtesy of Spring Meadow Nursery, Inc.
When it comes to blooming, Tuff Stuff Ah-Ha hydrangea can't stop and won't stop! At first glance, you'll fall in love with this beautiful mountain hydrangea for its waterlily-like double florets. But that's only part of the story, this is also one of the most prolific reblooming hydrangeas you'll ever see. All summer long, it devotes its energies to creating flower buds on its new growth so that you have a constant supply of fabulous blooms from early summer through frost. Tuff Stuff Ah-Ha hydrangea will bloom pink or blue, depending on soil chemistry.
Growing Tips: Mountain hydrangeas are from the same area of Japan as bigleaf hydrangeas but grow in the mountains instead of the seaside. As a result, they have naturally developed better cold tolerance and thus make an outstanding choice for gardens in USDA zones 5 and 6 especially.
Soil: Moist but well drained soils are best. Mountain hydrangeas are less susceptible to wilting than bigleaf hydrangeas, but cannot take soggy conditions for any period of time. Tolerant of a range of soil pH levels, however, soil pH will influence flower color.
Pruning: Avoid pruning mountain hydrangeas, except to remove any dead wood. These hydrangeas cannot be cut back or trimmed at any time of the year without impacting the bloom for either the current season or the next. Though they do rebloom readily on new wood, the best display comes from treating them as though they bloom only old wood.
Uses: Mountain hydrangeas can be used the same as bigleaf hydrangeas: perfect for flower gardens, cottage gardens, and seaside plantings. They also make a showy addition to foundation plantings and can be used for low hedges or edging.
Photo courtesy of Spring Meadow Nursery, Inc.
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Flower Color: Pink/Blue Shades Foliage Color: Green Shades
Height: 2 to 3 Feet Spread: 2 to 3 Feet Hardy in Zone: 5, 6, 7 |
Blooms: Summer to Fall
Foliage Season: All Season |
Exposure
Full Sun
Partial Shade
Soil Moisture Needs
Moderate
Attributes |
 Extended Bloomer  Dried Flower Mass Planting Landscapes Easy to Grow Cut Flower or Foilage Border
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Attracts
Butterflies
