Grevillea juniperina f. sulphurea
Juniper leaf grevillea, Juniper leaf spider flower
Also known as Grevillea juniperina subsp. sulphurea
- Height × spread
- 2m × 2m
- Position
- Full sun
- Hardiness
- Average winter to - 10C (RHS H4)
- Flowers
- Spring, Summer
Availability
Please ask in store about availability
Many plants are seasonal. Call 01234 567890 to check current stock.
About this plant
This shaggy looking plant has spreading branches clad in slender leaves that look like pine needles. Spiky yellow flowers appear in late spring or early summer that, at a glance, look like threads of cotton caught among the foliage.
- Flower colour
- Yellow
- Foliage colour
- Green
- Variegated
- No
- Scent
- Yes, honey-almond
- Shape
- Bell
- Height
- 2m
- Spread
- 2m
- Season of interest
- Spring, Summer
- Flowers in
- Spring, Summer
- Evergreen
- Evergreen
- Garden style
- Scented garden, Exotic garden
- Sun or shade
- Likes full sun
- Soil type
- Gravelly soil, Loam (normal), Poor soil, Sandy soil
- Soil pH
- Acid (ericaceous), Neutral
- Drainage
- Moisture retentive soil, Well drained soil, Drought resistant
- Hardiness
- Average winter to - 10C (RHS H4)
- Borders & containers
- Borders
- Use for
- Wall cover, Structural
- Walls
- South, West facing
- Hazards
- Yes, potentially harmful; Humans: Skin irritant/allergen
Spring
Spring - late · Outdoors
Feed with slow release fertiliser
Apply a general purpose slow release fertiliser, spreading it around the root area of the plant as it is coming into growth. (Or apply a liquid feed at regular intervals throughout the growing season.)
This is a simple way to provide a nutrient boost as a single annual procedure.
Spring - late · Outdoors
Feed with sequestrol
If plants are acid loving and grown in soil with little acidity, or in a container, or are watered with limey tap water an annual feed with sequestrol (iron chelate) is highly beneficial. Follow guidelines on the packet. Will also 'blue-up' hydrangeas.
For hydrangeas that have good blue flowers in acid soil, this product can be used with alkaline soil to turn the flowers blue. This is most effective when the soil is neutral or just slightkly alkaline.
Spring-Autumn · Outdoors
Water to keep the soil moist
For best results, this plant needs soil that is always moist. Water deeply and regularly as soon as soil appears dry. Even for established plants in the ground, a dry week can cause problems with some soils. Check plants in pots more often, especially in hot weather. Or install an automatic irrigation system which will do the hard work for you, even when you are away on holiday.
Without regular watering some plants never fully regain their beauty.
Planting & general
Outdoors
Water with rain water
This plant needs rain water or soft water (the minerals in alkaline or "hard" water are harmful). This is especially important for plants in pots.
Outdoor planting · Planting
Add root growth stimulant to the planting hole
Mycorrhizal fungi helps roots establish quickly, so they absorb water and nutrients more efficiently. It comes as a powder, granule or gel. Add to the planting hole or container, and to the plant's rootball before planting in the hole. For "bareroot" plants use a gel.
Compost · Planting
Ericaceous compost
This plant requires acidic (ericaceous) soil. Where the soil is not acidic, or when planting in pots, use an ericaceous compost.