This library and any plant lists generated from it reflect plants we’ve carried or could obtain over the past 12–18 months, not our current inventory or availability.

“Fire Wise” plants are not fireproof. These plants, when maintained properly, have a higher fire resistance reducing fire danger. This list is built on the recommendations of local governments and the Diablo Firesafe Council

Plant Library
shrub

Seaside Serenade® Cape Lookout Hydrangea

Hydrangea macrophylla 'HORTMABLO'

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Seaside Serenade Cape Lookout Hydrangea (Hydrangea macrophylla 'HORTMABLO') at East Bay Nursery

Seaside Serenade® Cape Lookout Hydrangea flowers

Seaside Serenade® Cape Lookout Hydrangea flowers

(Photo courtesy of NetPS Plant Finder)

Seaside Serenade Cape Lookout Hydrangea (Hydrangea macrophylla 'HORTMABLO') at East Bay Nursery

Seaside Serenade® Cape Lookout Hydrangea flowers

Seaside Serenade® Cape Lookout Hydrangea flowers

(Photo courtesy of NetPS Plant Finder)

Height:  4 feet

Spread:  3 feet

Sunlight:  full sun  partial shade 

Hardiness Zone:  4b

Other Names:  French Hydrangea, Bigleaf Hydrangea

Group/Class:  Seaside Serenade Series

Brand:  Monrovia

Description:

A hardy compact form that is perfect for smaller spaces; features long lasting, large blooms that emerge green, turn pure white, then take on a pink tinge with age; dark green foliage turns bronze in fall; ideal for foundations, borders and containers

Ornamental Features

Seaside Serenade® Cape Lookout Hydrangea features bold balls of white flowers at the ends of the branches from late spring to late summer, which emerge from distinctive light green flower buds. The flowers are excellent for cutting. It has dark green deciduous foliage. The glossy pointy leaves turn an outstanding coppery-bronze in the fall.

Landscape Attributes

Seaside Serenade® Cape Lookout Hydrangea is a multi-stemmed deciduous shrub with a more or less rounded form. Its relatively coarse texture can be used to stand it apart from other landscape plants with finer foliage.

This shrub will require occasional maintenance and upkeep, and should only be pruned after flowering to avoid removing any of the current season's flowers. It has no significant negative characteristics.

Seaside Serenade® Cape Lookout Hydrangea is recommended for the following landscape applications;

  • Accent
  • Mass Planting
  • Hedges/Screening
  • General Garden Use
  • Container Planting

Planting & Growing

Seaside Serenade® Cape Lookout Hydrangea will grow to be about 4 feet tall at maturity, with a spread of 3 feet. It tends to be a little leggy, with a typical clearance of 1 foot from the ground. It grows at a fast rate, and under ideal conditions can be expected to live for approximately 20 years.

This shrub does best in full sun to partial shade. You may want to keep it away from hot, dry locations that receive direct afternoon sun or which get reflected sunlight, such as against the south side of a white wall. It requires an evenly moist well-drained soil for optimal growth. It is not particular as to soil type, but has a definite preference for acidic soils. It is highly tolerant of urban pollution and will even thrive in inner city environments, and will benefit from being planted in a relatively sheltered location. Consider applying a thick mulch around the root zone in both summer and winter to conserve soil moisture and protect it in exposed locations or colder microclimates. This is a selected variety of a species not originally from North America.

Seaside Serenade® Cape Lookout Hydrangea makes a fine choice for the outdoor landscape, but it is also well-suited for use in outdoor pots and containers. Because of its height, it is often used as a 'thriller' in the 'spiller-thriller-filler' container combination; plant it near the center of the pot, surrounded by smaller plants and those that spill over the edges. It is even sizeable enough that it can be grown alone in a suitable container. Note that when grown in a container, it may not perform exactly as indicated on the tag - this is to be expected. Also note that when growing plants in outdoor containers and baskets, they may require more frequent waterings than they would in the yard or garden.

 
 
Hardiness Zone  Plant Height  Minimum Sunlight  Soil pH Preference 
Characteristics
Accent  Massing  Screening  Garden  Container 
Applications
Flowers  Fall Color 
Features & Attributes

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