shrub

Fireworks Grevillea

Grevillea x hybrida 'Fireworks'

The Story

Plant Bio

Grevillea is a diverse genus of evergreen Australian shrubs and trees in the Proteaceae family, characterized by their unique, petal-less flowers and high sensitivity to phosphorus. These plants are highly adapted to nutrient-poor, exceptionally well-drained soils and rely on specialized proteoid roots to absorb trace elements.

'Fireworks' is a compact, upright cultivar with a dense, mounding habit and soft, slender, blue-green foliage. It produces vibrant, bi-colored red and yellow spider-type flowers at the ends of short branches from spring through summer.

Uses & Benefits:

Ornamental UsesVibrant bi-colored red and yellow spider-type flowers contrast with fine-textured, blue-green foliage on a compact mounding shrub.
Practical UsesHighly drought-tolerant once established and performs exceptionally well in coastal conditions with moderate maritime exposure.
Ecological BenefitsProvides a rich nectar source for local nectar-feeding birds, bees, and beneficial insects.
Garden hybrid

Bred from more than one wild species, so it has no species page of its own.

Essentials

At a Glance

Plant Type

Shrub

Height

43"

Width

35"

Light

Full Sun, Partial Sun

Zones

9, 10

Water

Low

Humidity

Low to Moderate

Lifespan

Perennial

Native To

Australia

Toxicity

Skin Irritant

Bloom period

Spring – Summer

J
F
M
A
M
J
J
A
S
O
N
D

In flower about 6 months of the year

Planting

How to Grow

  1. Select a planting site in full sun with acidic to neutral, sandy or loamy soil that drains rapidly.
  2. Dig a hole twice as wide as the root ball but no deeper, ensuring the crown sits slightly above the surrounding soil level to prevent rot.
  3. Backfill with the native soil without adding organic compost or standard fertilizers, which can hold too much moisture and phosphorus.
  4. Water deeply to settle the soil, then restrict watering to occasional deep soakings once the root system is established.

Pro Tip

Plant in exceptionally well-drained sandy or loamy soil and use only specialized low-phosphorus native fertilizers, as standard formulas will cause fatal nutrient toxicity.

Keep It Thriving

Care Guide

Do

  • Do plant in highly permeable, sandy or gravelly soil mixes to ensure rapid drainage.
  • Do use specialized native fertilizers with a phosphorus content below three percent.
  • Do wear gloves and long sleeves when handling the plant to avoid skin irritation from the foliage and sap.

Don't

  • Don't plant in heavy clay soils or low-lying areas where water collects.
  • Don't apply standard garden fertilizers containing phosphorus, as this is highly toxic to the root system.
  • Don't prune heavily into old, leafless wood, which lacks latent buds and will fail to regrow.

Seasonal Care Calendar

TaskJanFebMarAprMayJunJulAugSepOctNovDec
Fertilize
Pest Check
Prune
Winter Prep

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Coastal GardensRock GardensContainer PlantingMediterranean GardensLow-Water Borders

Multiply

Propagation Methods

Good to Know

Common Questions

Fireworks Grevillea questions

What zones can Fireworks Grevillea grow in?

Fireworks Grevillea is hardy in USDA Zones 9–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

When does Fireworks Grevillea bloom?

Fireworks Grevillea typically blooms in spring through summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Fireworks Grevillea need full sun?

Fireworks Grevillea does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is Fireworks Grevillea drought tolerant?

Yes — once established (usually after the first full season), Fireworks Grevillea handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.

Keep exploring

Explore the genus

Hardy in your zone?

Grow Fireworks Grevillea with confidence

See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.