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Grevillea barklyana
Gully Grevillea
Grevillea barklyana
Grevillea barklyana, also known as the Barkly Grevillea, is a species of flowering plant in the family Proteaceae. It's a medium-sized shrub or small tree, typically growing to 2-6 meters tall. It features attractive, deeply divided, fern-like foliage and produces showy, bright red or orange flowers in profuse clusters. These flowers are a significant nectar source for birds and insects. The plant is relatively drought-tolerant once established and is suitable for drier climates. It is native to central and northern Queensland, Australia.
CategoryDetails
Plant TypePerennial plant
Duration to maturity2 years to harvest
Estimated Plant Lifespan20 years lifespan
Sun Requirements6+ hours direct sunlight (Full Sun)
Pollination

Method: Bird pollination

Notes: Attracts honeyeaters and other nectar-feeding birds.

Watering Requirements

Method: Deep watering

Frequency: When the top inch of soil is dry

Notes: Reduce watering frequency once established. Avoid overwatering.

Humidity Requirements

Level: Moderate

Care InstructionsPrune lightly after flowering to maintain shape and encourage bushier growth. Remove any dead or damaged branches.
Temperature Range

Min: -2°C

Max: 35°C

Cultivars

Melaleuca citrina
crimson bottlebrush
Melaleuca citrina
Both Grevillea barklyana and Callistemon citrinus are drought-tolerant Australian natives that thrive in similar conditions. Planting them together creates a visually appealing combination of contrasting textures and flower colors, attracting similar pollinators.
Eucalyptus camaldulensis
river redgum
Eucalyptus camaldulensis

Eucalyptus camaldulensis, being a larger, faster-growing tree, can outcompete Grevillea barklyana for water and nutrients, especially in drier conditions, potentially stunting the growth and health of the Grevillea.

Scale insects

Scale insects can infest Grevillea barklyana, sucking sap from the leaves and stems. Infestation can lead to yellowing, wilting, and overall decline in plant health. They appear as small, immobile bumps on the plant's surfaces.

Aphids

Aphids are small, soft-bodied insects that feed on plant sap, causing leaf curling, yellowing, and stunted growth. They excrete honeydew, which can lead to sooty mold growth.

Steps:

    • Take semi-hardwood cuttings in spring or autumn.
    • Dip the cut end in rooting hormone.
    • Plant in a well-draining potting mix.
    • Keep the cuttings moist but not waterlogged.
    • Provide partial shade until roots develop.

Neem oil

A natural insecticide effective against common Grevillea pests such as aphids and scale insects.

Seasol

A seaweed-based liquid fertiliser that helps improve overall plant health and stress tolerance.