Does it need much water?

No, it thrives on natural rainfall and needs very little supplemental irrigation once established.

Why did my plant lose its leaves?

It is likely entering dormancy due to heat or drought, which is a natural survival mechanism.

Plant guide

Brittlebush.

Encelia farinosa

Pronounced en-SEE-lee-uh far-ih-NO-suh

Also known as Brittle-bush, Brittlebush, white brittlebush

Brittlebush is a lovely desert shrub that puts on a showy display of yellow flowers in the spring. It thrives in harsh, dry environments and is a staple of the Sonoran Desert landscape. You'll find it's a very hardy plant that doesn't need much fussing over.

At a glance

Care level: Easy
Plant type: Shrub
Light: Full sun
Indoor light: Direct sun
Water: Every 14 to 30 days
Mature size: 3 to 5 feet
Growth rate: Medium
Hardiness: USDA 8 to 11
Bloom time: Late winter to spring

Care

Give this plant plenty of sun and ensure the soil drains very quickly. Watch for signs of root rot if the soil stays damp for too long. It's best to leave it alone once it's established in the ground.

Watering: Water sparingly once established, as it is highly drought tolerant.
Feeding: It generally does not require supplemental fertilizer in native soil.
Pruning: Lightly prune after flowering to maintain a tidy shape.
Repotting: Only repot if the plant has completely outgrown its container.
Soil: Sandy or rocky, well-draining soil
Soil pH: Neutral to slightly alkaline
Temperature: -7 to 45°C
Humidity: 10 to 40%
Drought tolerance: High
Lifespan: Perennial, typically 5 to 10 years.
Deer and rabbits: High

Safety

People: There are no reports of significant toxicity to humans.
Children: The plant has no specific hazards for children, though it is best to keep them from handling the stems to avoid minor skin irritation.
Contact allergens: The foliage can cause mild skin irritation in sensitive individuals due to fine hairs.
Airborne allergens: Pollen may trigger seasonal allergies in sensitive people during the spring bloom.
Edibility: This plant is not considered edible for humans.

How to identify it

Silvery gray foliage
Bright yellow daisy-like flowers
Rounded shrub growth habit
Brittle, woody stems
Leaves covered in fine hairs

Height: 0.6 to 1.5m
Spread: 0.6 to 1.5m
Leaves: gray, silver, deciduous
Flowers: yellow, 3 to 5cm
Fruit: brown, late spring

Problems to watch for

Root rot · Occurs when the soil stays too wet for too long, especially in summer.

By symptom

Plant problems by symptom

Check your brittlebush from a photo

Pocket Botanist looks at a photo of your plant and tells you what's wrong and what to try first.

Growing it

Propagation: seed, cuttings
When to plant: fall, winter
Overwintering: No special care is needed as it is well adapted to cool desert winters. Ensure the soil remains dry during cold periods to prevent rot.
In containers: It does not grow well in containers because it requires deep soil for its extensive root system.

Seed

1. Collect seeds in late spring when they turn brown.
2. Sow seeds on the surface of well draining soil in fall.
3. Keep lightly moist until germination occurs.

Group this plant with other desert natives that require excellent drainage and minimal summer water.

Grows well with

Creosote Bush · They share the same desert habitat and water requirements.
Desert Globemallow · They provide a nice color contrast and thrive in similar conditions.

Similar species

California Brittlebush · It is a close relative with similar growth habits but prefers coastal environments.

Science

Family: Asteraceae
Genus: Encelia
Order: Asterales
Class: Magnoliopsida
Native range: Southwestern United States and Northwestern Mexico.
Conservation: It is common and widespread in its native range and not of conservation concern.

It survives by shedding leaves during intense heat and using reflective hairs to manage solar radiation.

Value to wildlife: nectar source, seed source for birds
Pollinators: bees, butterflies
Uses: xeriscaping, pollinator gardens, restoration planting

Through the year

JFMAMJJASOND

Flowering

Fruiting

Foliage

Ecological indicators

Salinity: 2/9
Soil reaction: 7/9
Light: 9/9
Temperature: 8/9
Moisture: 1/9
Nutrients: 2/9

Taxonomy resolved against GBIF.

Questions people ask

Does it need much water?: No, it thrives on natural rainfall and needs very little supplemental irrigation once established.
Why did my plant lose its leaves?: It is likely entering dormancy due to heat or drought, which is a natural survival mechanism.

Where the name comes from

The genus name Encelia honors German physician Christoph Entzelt, while farinosa refers to the mealy or floury appearance of the leaves.

Good to know

It is commonly called brittlebush because the stems snap easily.
The leaves turn gray to reflect sunlight and reduce water loss.
It can drop its leaves during extreme drought to survive.
It is a classic indicator species of the Sonoran Desert.

Also in

Keep your brittlebush growing

This page is a general guide. Save your plant in Pocket Botanist and you get care reminders timed for this plant, plus a care history that shows what worked.

Get the app

This guide was generated with AI on October 19, 2026 and checked against GBIF taxonomy. It is general information, not horticultural or veterinary advice. Read about how we build these guides.