Rosemary grevillea
Grevillea rosmarinifolia · Proteaceae
📷 JJ Harrison (https://www.jjharrison.com.au/) · CC BY-SA 3.0
The gardener's calendar
In autumn, ease off feeding and take the chance to clean up around rosemary grevillea and prepare for winter.
ID card
- Common name
- Rosemary Grevillea
- Family
- Proteaceae
- Origin
- Eastern Australia
- Foliage type
- Evergreen, fine and linear
- Flowering
- March to May, scarlet red flowers
- Adult height
- Approximately 1.5 m
- Hardiness
- Frost-tender, mild climates (5–8°C minimum)
- Growth
- Fast
✓ Taxonomy verifiedSource: AI estimate · hardiness: reliability medium.
Expert tips
The key tip
Grevillea rosmarinifolia hates waterlogged soil: plant it in very well-drained, even gravelly soil, and only water when the soil is dry at 5 cm depth. Once established (after 1–2 years), it can get by without regular watering.
The common mistake
Watering too often or poorly drained soil encourages root rot.
The pro's trick
Mulch lightly around the base with gravel or sand: this keeps the roots cool without trapping moisture, and Grevillea loves cool roots but a dry collar.
Care
Light and exposure
Place your grevillea in full sun to ensure generous and abundant flowering. This Australian plant loves bright light and fears partial shade, which reduces flower production. In hot, dry climates, a west-facing exposure may be acceptable but remains less ideal than south or east-facing positions.
Watering
Allow the substrate to dry slightly between waterings, as this plant dislikes stagnant moisture. During the growing phase (spring-summer), water moderately and regularly. Significantly reduce watering in winter. Impeccable drainage is essential.
Soil and potting mix
Use a very well-draining substrate: mix light potting soil, coarse sand, and organic matter. Avoid heavy and chalky soils. If the plant is potted, improve drainage with gravel or clay pebbles at the bottom of the container.
Pruning and pinching
Pinch young stems in spring to encourage a dense, bushy shape. After flowering, perform light pruning for shaping. Remove dead or diseased branches as needed. Avoid severe pruning, which slows growth.
Fertilizing
Apply balanced or low-nitrogen fertilizer in spring and early summer. Grevilleas prefer poor soils and tolerate excess nutrients poorly. Light application is sufficient; reduce after flowering.
Health and pests
Watch for spider mites and scale insects, especially in dry conditions. Ensure good air circulation to prevent fungal diseases. Excess moisture promotes root rot: strictly follow the watering schedule.
Did you know?
The rosemary grevillea is a fascinating plant from the Australian Proteaceae family, an ancient family whose bizarre flowers, often equipped with colored and curved styles, attract hummingbirds and songbirds across the Australian continent. In Mediterranean Europe, it has established itself as an elegant ornamental plant, prized for its spectacular bright red flowering and finely textured foliage reminiscent of rosemary — hence its evocative name.
Where to buy it
Best planted in autumn so the roots settle in before summer, or in early spring once the frost has passed. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, October, November.
Add this plant to my garden →Plants from the same family
- Juniper-leaf grevilleaGrevillea juniperina
- Woolly grevilleaGrevillea lanigera
- Southern Silky-oakGrevillea robusta
- Silver banksiaBanksia marginata
- Persoonia linearisPersoonia linearis
- Hairpin banksiaBanksia spinulosa
Tips generated and checked by Viridia — adapt them to your local climate.