Weeping Bottlebrush Tree | Red Flowering Evergreen Shrub

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Weeping Bottlebrush

Callistemon viminalis

A fast-growing, weeping tree with spectacular red bottlebrush flowers that hummingbirds adore.

$79.00

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Bay Area–Based Nursery

We specialize in plants grown and delivered in their original pots and soil.
Because of their size and weight, our plants are not suitable for long-distance shipping and are delivered locally to ensure health and quality.

While delivery is limited to our local service area, we’re happy to support garden design and plant selection remotely.

For local plant professionals, we’re always glad to connect and explore ways to support your customers.

The Weeping Bottlebrush is a spectacular, fast-growing evergreen tree or large shrub, celebrated for its dramatic, pendulous branches and showy, bright red flowers that resemble a traditional bottle brush. Native to Australia, this iconic plant produces an abundance of cylindrical, 4-6 inch long blooms composed of hundreds of long, brilliant red stamens, which appear in spring and often sporadically throughout summer . The flowers are a magnet for hummingbirds, bees, and other pollinators. Its common name refers to its graceful, weeping habit and the soft, light green to gray-green, narrow leaves that hang elegantly from its branches. Highly adaptable, drought-tolerant once established, and tolerant of wet soils, it is an outstanding choice for creating a stunning focal point, a flowering screen, or a living privacy wall.

Knowing how we measure the size?

When browsing our plants, you may notice size terms such as Gallon, Multi, or Stand. These describe how a plant is grown, containerized, or structured at the time of sale — not just its height. Understanding these terms will help you choose the right plant for your space and expectations.

🌱 Gallon Size (Container Size)

Gallon refers to the size of the nursery container the plant is currently growing in (e.g. 1 Gallon, 5 Gallon, 15 Gallon).

A larger gallon size generally means:
- A more established root system
- A sturdier plant
- Faster visual impact after planting
Example:
- 5 Gallon: Ideal for residential gardens, easy to handle, good balance of value and maturity
- 15 Gallon: More mature, provides quicker results in the landscape

Note: Gallon size does not guarantee a specific height, as growth varies by species.

🌳 Multi (Multi-Trunk / Multi-Branch Form)

Multi indicates the plant has multiple trunks or main stems growing from the base.

Commonly used for:
- Ornamental trees
- Feature plants
- Japanese maples, olives, crepe myrtles, etc.
Why choose Multi:
- Fuller, more sculptural appearance
- Strong visual presence even at younger ages
- Popular for design-focused landscapes

🌲 Stand (Single-Trunk / Standard Form)

Stand (short for Standard) refers to a single, dominant trunk with a raised or naturally formed canopy.

Commonly used for:
- Shade trees
- Street trees
- Orchard and structural plantings
Why choose Stand:
- Clean, classic tree form
- Easier clearance for walkways and lawns
- Preferred for long-term structure and uniformity

🌿 Choosing the Right Size

If you want instant impact → larger Gallon, Multi form
If you want long-term structure → Stand form
If you want flexibility and value → mid-size Gallon containers

If you’re unsure which size or form fits your project, our team is happy to help you select the best option based on your space, timeline, and design goals.

Foliage & Flowers: Narrow, lance-shaped, light green to gray-green leaves (3-6 inches long) on gracefully weeping branches; cylindrical, brush-like, bright red flower spikes (4-6 inches long) composed of long, showy stamens, blooming primarily in spring with sporadic summer flowers .
Mature Height: 20-30 ft (6-9 m) .
Mature Spread: 12-15 ft (3.5-4.5 m) .
Growth Rate: Fast .
Hardiness Zones: USDA 8-11 ; Sunset 6-9, 12-24 .
Light Requirement: Full sun to partial shade (best flowering in full sun) .
Core Benefits: Spectacular red bottlebrush flowers, graceful weeping habit, fast-growing, attracts hummingbirds, drought and wet soil tolerant, versatile.
Best Uses: Specimen tree, focal point, flowering screen, privacy hedge, erosion control along creeks and ponds, street tree (with space), wildlife gardens, large containers.

Q: How big does a Weeping Bottlebrush get?
A: It is a large shrub or small to medium-sized tree, typically reaching 20-30 feet in height and 12-15 feet in spread . Its size makes it suitable for larger gardens, parks, and landscapes. It can be pruned to maintain a smaller size or to train it as a single-trunk tree.

Q: When does it bloom?
A: The main flowering period is in spring, usually from April through June . In warmer climates, it may produce sporadic flowers throughout the summer. Each individual flower spike lasts for several weeks, and the tree puts on a spectacular, long-lasting show.

Q: How much sun does it need?
A: For the most abundant flowering, plant the Weeping Bottlebrush in full sun . It will tolerate partial shade, but flowering will be significantly reduced.

Q: How often should I water it?
A: Once established (after 1-2 years), the Weeping Bottlebrush is highly drought-tolerant and requires little to no supplemental water in most climates . During its first year, water regularly to help it establish a deep root system. It also tolerates periodic wet conditions.

Q: Is it cold hardy?
A: It is reliably hardy in USDA zones 8-11, tolerating light frosts down to about 20-25°F (-7 to -4°C) . In colder zones (USDA 7 and below), it should be grown in a container and protected during winter.

Q: Is it invasive?
A: While Callistemon viminalis is not generally considered invasive, it has been reported as a low-level environmental weed in some parts of Australia (outside its native range) . In the United States, it is not listed as invasive and is widely cultivated as a garden ornamental. Always check local guidelines.

Q: How should I prune it?
A: Prune immediately after flowering in spring. Light pruning after the main bloom flush encourages bushier growth and can promote a second, lighter flush of flowers in summer . Remove dead, damaged, or crossing branches. For a tree form, selectively remove lower branches over several years.