Arizona's Favorite Year-Round Blooming Shrub — 'Blue Bells' Emu Bush

'Blue Bells' Emu Bush (Eremophila hygrophana) is the top flowering shrub for Phoenix homeowners who want color all year long without the water bill. This compact, evergreen shrub explodes with vivid purple-to-violet-blue flowers nearly every month of the year in Arizona's warm climate. It's incredibly tough — thriving in full sun, reflected heat, and caliche soils that would stress most ornamentals. Whether you're building a low-water xeriscape border in Scottsdale, adding poolside color in Chandler, or creating a bright flowering hedge in Gilbert or Mesa — 'Blue Bells' Emu Bush delivers season after season.

'Blue Bells' Emu Bush Plant Details

'Blue Bells' Emu Bush Uses in Phoenix Landscapes

Xeriscape Borders and Low-Water Gardens

'Blue Bells' Emu Bush is one of the finest choices for a xeriscape border that actually looks beautiful. Its soft gray-green foliage and vivid purple flowers contrast beautifully with gravel, decomposed granite, and natural stone. Plant it alongside Desert Spoon and Texas Sage for a striking, water-wise border that requires almost no maintenance after establishment. For a 20-foot border, plan on 5–6 plants; for 40 feet, 10–12 plants spaced 3–4 feet apart.

Poolside and Patio Color

'Blue Bells' Emu Bush is pool-friendly — it doesn't drop messy pods or fronds, and its compact size keeps it from encroaching on pool decks. The long bloom season means you'll have color near the pool from fall through spring when you're using your outdoor space most. It pairs beautifully with Ruellia and Bougainvillea for a vibrant patio vignette in Tempe, Peoria, or Glendale.

Wildlife and Pollinator Gardens

Hummingbirds absolutely love the tubular violet-blue flowers of 'Blue Bells' Emu Bush, making it an excellent choice for a pollinator garden. Its near year-round bloom period means a near-constant food source for native birds and pollinators. Combine it with Blackfoot Daisy and Desert Marigold for a wildlife habitat that thrives in Phoenix's desert heat.

Modern Desert Design and Mass Planting

With its mounded, uniform habit and consistent flower color, 'Blue Bells' Emu Bush is a designer favorite for contemporary desert landscapes. Mass plant 3–5 plants together for a stunning purple color block, or alternate with Texas Sage for a two-tone flowering wave. Its small footprint makes it ideal for parking strips, median plantings, and tight spaces in Scottsdale and Chandler.

Best Time to Plant 'Blue Bells' Emu Bush in Phoenix

Fall planting (October–November) is the ideal window. The soil is still warm enough to encourage root growth, while cooler air temperatures reduce transplant stress. This gives your plant 6–8 months to establish a strong root system before its first Phoenix summer. Spring planting (February–April) is your second-best option — just be prepared to water more frequently as temperatures climb. Avoid summer planting if at all possible, as the combination of heat and transplant stress can be hard on new plants.

How to Plant 'Blue Bells' Emu Bush

1. Dig wide, not deep — excavate a hole 2–3x the root ball width but the same depth as the container.
2. Check for caliche — break through any hardpan layer to ensure proper drainage; 'Blue Bells' Emu Bush is sensitive to wet feet.
3. Backfill with native soil — a light 20% organic amendment is fine, but avoid heavy compost mixes.
4. Spacing — plant 3–4 feet apart for a border or hedge effect; 4–5 feet apart as individual accent plants.
5. Water basin — build a 3–4 inch earthen ring around the plant to direct irrigation water to the root zone.
6. Mulch — apply 2–3 inches of bark or gravel mulch to retain soil moisture and suppress weeds.

Watering 'Blue Bells' Emu Bush in Phoenix

First Year Watering Schedule

• Weeks 1–2: Every 1–2 days, deep and slow (20–30 minutes per session)
• Months 1–2: Every 3–4 days
• Months 3–6: Every 7–10 days (every 5–7 days during peak summer heat)
• After Year 1: Every 10–14 days in summer; every 3–4 weeks in winter

Drip Irrigation

Place a 1–2 GPH emitter 12–18 inches from the base of the plant. Once established, 'Blue Bells' Emu Bush thrives on minimal supplemental irrigation — overwatering is the most common mistake. In Phoenix's cooler months, established plants can often go several weeks between waterings.

How fast does 'Blue Bells' Emu Bush grow in Phoenix?
Expect moderate growth of about 1–1.5 feet per year in Phoenix's warm climate. It will reach its mature size of 2–3 feet tall and 3–4 feet wide within 2–3 years of planting.

Is 'Blue Bells' Emu Bush drought tolerant once established?
Yes — this is one of its best qualities. Once established (typically after one full growing season), it survives on very little supplemental water. It's native to arid regions of Australia and is perfectly adapted to Phoenix's hot, dry conditions.

Can 'Blue Bells' Emu Bush handle Phoenix summer heat and reflected heat?
Absolutely. It thrives in full desert sun and handles the reflected heat from walls, pavement, and block fences that would stress many other plants. Just make sure it gets enough water during the establishment period in its first summer.

Is 'Blue Bells' Emu Bush pet-friendly?
It is not known to be toxic to dogs or cats, and it's tagged as pet-friendly at Three Timbers. However, always consult with your veterinarian if you have specific concerns about plants and your animals.

What's the difference between 'Blue Bells' Emu Bush and other Eremophila varieties?
Eremophila hygrophana 'Blue Bells' is prized for its especially vivid violet-blue flower color and its compact, well-behaved habit. Other Eremophila species may grow larger or have pink, red, or white flowers. 'Blue Bells' is one of the best performers in Phoenix's climate specifically for its nearly year-round bloom and low water needs.

You May Also Like

• Texas Sage (Leucophyllum frutescens) — another stunning low-water flowering shrub that pairs beautifully with 'Blue Bells' Emu Bush for a two-tone purple border.
• Blackfoot Daisy (Melampodium leucanthum) — a cheerful white native daisy that blooms alongside Blue Bells for a striking color contrast in xeriscape gardens.
• Ruellia (Ruellia peninsularis) — a low-water flowering shrub with purple blooms that complements 'Blue Bells' Emu Bush in poolside and patio settings.
• Desert Spoon (Dasylirion wheeleri) — a dramatic architectural accent plant that pairs beautifully with the soft texture of 'Blue Bells' Emu Bush in modern desert designs.
• Purple Hopseed Bush (Dodonaea viscosa 'Purpurea') — a fast-growing privacy shrub with rich purple foliage that makes a stunning backdrop for the vivid blue-purple blooms of 'Blue Bells' Emu Bush.