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PlantSnap
Plant Care
Holly-leaf grevillea
(Grevillea wickhamii)
Also Known As
Holly-leaf grevillea, Wickham's grevillea, Wickham grevillea, Grevillea
About This Plant
Grevillea wickhamii is a shrub species that is endemic to Western Australia. It is a member of the Proteaceae family and is known for its attractive flowers and foliage.
Plant Care Instructions
Outdoor Size Range
3-6 feet (0.9-1.8 meters) tall and 3-4 feet (0.9-1.2 meters) wide
Light Requirements
Grevillea wickhamii requires full sun to partial shade. It prefers at least 6 hours of direct sunlight per day, but can tolerate some shade.
Humidity Needs
Grevillea wickhamii prefers low to moderate humidity levels and does not require any special attention in this regard.
Fertilizing Schedule
Grevillea wickhamii does not require frequent fertilization. A slow-release fertilizer can be applied in the spring to promote healthy growth.
Pruning Guidelines
This plant species does not require regular pruning, but can be pruned to maintain its shape and size. Pruning should be done in the late winter or early spring.
Common Pests and Diseases
Grevillea wickhamii is generally pest and disease-free, but can be susceptible to root rot if overwatered.
Indoor Size Range
Not suitable for indoor cultivation
Watering Schedule
This plant species is drought-tolerant and does not require frequent watering. It is best to water deeply but infrequently, allowing the soil to dry out between waterings.
Temperature Range
This plant species can tolerate a wide range of temperatures, but prefers warm to hot temperatures. It can tolerate temperatures as low as 20°F (-6°C) and as high as 100°F (38°C).
Growing Season
Grevillea wickhamii can be grown year-round in areas with mild winters. In areas with colder winters, it is best to plant in the spring or summer.
Growing Difficulty Level
Intermediate - Grevillea wickhamii requires some attention and care, but is relatively easy to grow.
USDA Hardiness Zones
Grevillea wickhamii is hardy in USDA zones 9-11.
Did You Know?
Grevillea wickhamii is named after John Clements Wickham, a British naval officer and naturalist who explored the coast of northern Australia in the mid-19th century.
