Acidic substrate (pH 4.5–6.0), organic matter, drainage yet evenly moist. Ericaceous mix.

Plant ~60 cm apart for a tight low hedge. For containers, one plant in a pot ≥45 cm.

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Rhododendron 'Bloombux'® Magenta 10.5cm

Name: Rhododendron 'Bloombux'® Magenta 10.5cm
Brand: Greenleaf Garden Center
SKU: RhodBloombMagenta10.5cm
Price: 9.5 EUR
Availability: OutOfStock

€12,00

€9,50

Quantity

Rhododendron ‘Bloombux’® Magenta — Rhododendron

Family: Ericaceae • Pot diameter: 10.5 cm • Height: ~25 cm

Flowering “successor” to boxwood for low hedges or stand-alone planting — elegant, evergreen, genuinely practical. An excellent modern variety!

Rhododendron ‘Bloombux’® Magenta is a refined dwarf selection bred as a boxwood alternative: it forms a dense, cushiony habit that shears cleanly like Buxus, while adding abundant deep-pink (magenta) trusses in spring to early summer. It keeps glossy evergreen foliage for year-round structure, is hardy to about −26°C, adapts to sun or part shade, and stays compact — ideal for low hedges, borders and containers in acidic, free-draining media.

Ericaceae Evergreen Sun–part shade Moderate care Slow–moderate

Light

🌤️ Full–part sun

3–6+ h/day, morning sun preferred

Water

💧 Moderate

even moisture, never waterlogged

Hardiness

❄️ Hardy

to ~−26°C (Zones 5b–9)

Soil / pH

🧪 Acidic 4.5–6.0

ericaceous mix, organic matter, drainage

What makes it special

🌸 Deep pink (magenta) trusses in May–June — a real seasonal show.
🧱 Dense, shearing-friendly habit like Buxus — but with blooms.
🧊 Improved hardiness & compact form for urban sites and small gardens.

Best uses

🚧 Low flowering hedges & borders (spacing ≈ 60 cm).
🪴 Containers/patios as evergreen “filler” with spring–summer colour.
🧩 Foundation plantings/small spaces needing order and punchy colour.

Placement

Give morning/late-day sun or bright part shade. Use acidic media (pH 4.5–6.0) rich in organic matter with excellent drainage yet consistent moisture. Plant slightly raised in heavy soils; mulch with pine bark. Roots are shallow — avoid cultivation at the base. Young plants need steady water to establish; water mature plants in droughts, especially in summer when next year’s buds are initiated. Feed spring with ericaceous fertiliser. Shear right after flowering for an even hedge.

Great companions

Pieris japonica ‘Little Heath’ — bright new tips that echo the magenta tones.
Leucothoe ‘Scarlet’ — seasonal red tints for acidic beds.
Gaultheria procumbens — evergreen berrying groundcover for ericaceous schemes.

Variety origin click to read

Who: The Bloombux line was developed by German consortium INKARHO GmbH (lime-tolerant rhododendrons). Cultivar ‘Bloombux’® Magenta corresponds to clone ‘Microhirs9’ with US plant patent PP32,968. Breeders: Ralf Lüttmann & Walter Preil (Bad Zwischenahn, Germany).

How & when: From a controlled cross (1997, Ahrensburg/N Germany) between forms of Rhododendron hirsutum × R. micranthum. Dwarf, compact clones were selected from the progeny. Early clone ‘Microhirs3’ (Bloombux/Blush) entered production ~2014; ‘Microhirs9’ (Bloombux® Magenta) is a later selection with stronger pink colour.

What it improves: Versus classic rhododendrons, Bloombux clones offer lower/denser habit, tolerance of higher pH (soils up to ~7–7.5), and high shear tolerance for low hedges/borders. ‘Microhirs9’ stands out for magenta trusses, compact size ~30–60 × 50–75 cm and good cold hardiness (Zones 5b–9).

Legal/propagation: ‘Microhirs9’ is protected (US PP32,968) and propagated asexually (cuttings/micropropagation) to maintain clonal traits. The trade name Bloombux® Magenta is a trademark accompanying the clone.

Summary: A hirsutum × micranthum hybrid from INKARHO’s program, selected for a boxwood-like look with flowers and wider pH adaptability — ideal for low flowering hedges in beds or containers.

1) Medium: Ericaceous mix (pH 4.5–6.0), organic matter, perlite; plant raised in heavy soils.

2) Water: Steady in year one; then moderate, more often in heat. Prefer low-lime/soft water.

3) Prune/Place: Sun–part shade; shear right after flowering to shape hedges.

🔎 Spec	Details
🌿 Botanical name	Rhododendron ‘Bloombux’® Magenta
🪴 Pot/Size	10.5 cm • height ~25 cm
☀️ Light	Full–part sun (3–6+ h/day)
💧 Water	Moderate; even moisture with good drainage
🧪 Soil/pH	Acidic 4.5–6.0, rich in organic matter
🌼 Bloom	May–June (magenta trusses)
📏 Final size	30–60 cm tall × 50–75 cm wide
☠️ Toxicity	Toxic (grayanotoxins) — keep away from children/pets

💡 Tip: For an even hedge, shear lightly right after flowering and keep spacing around 60 cm.

🤔 Did you know? Pine-bark mulch stabilises pH/moisture around the roots and noticeably boosts next year’s flowering.

Why you’ll love it info

🌸 A flowering “boxwood successor” — structure and colour together.
🧱 Dense, low habit for crisp hedges/borders.
🧊 Compact and hardy — perfect for small spaces.

🧠 Greenleaf for geeks — nerdy facts no one asked for geek

✂️ Selected to shear “clean” like Buxus without gaps.
🧬 Dwarf-compact habit from hirsutum × micranthum parents.
🌤️ Best with morning sun; in hot spots, give afternoon shade.
🧪 Needs acidic pH — key for colour/flowering and leaf health.

How much sun? light

Full to part sun (3–6+ h/day). In hot climates, morning sun with afternoon shade is ideal.

What soil/pH? soil

Acidic (pH 4.5–6.0), rich in organic matter; well drained yet evenly moist. Ericaceous mix.

When/how to prune? pruning

Right after flowering in May–June. Light shearing for uniformity; avoid hard cuts late summer.

Spacing for hedges? spacing

Plant ~60 cm apart for a tight, even low hedge. For containers, one plant in a pot ≥45 cm.

🔎 Note: Due to natural variation, the plant you receive may differ slightly from the photo. Form, size or colour depend on the season, growing conditions and the nature of each plant.

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Rhododendron 'Bloombux'® Magenta 10.5cm

Rhododendron 'Bloombux'® Magenta 10.5cm

Rhododendron ‘Bloombux’® Magenta — Rhododendron

Light

Water

Hardiness

Soil / pH

What makes it special

Best uses

Placement

Great companions

Rhododendron 'Bloombux'® Magenta 10.5cm Care & Tips

We take care of the packaging!

With specially designed boxes, we ensure that the plants will reach you intact, no matter what they encounter on the way!

All plants in 3L pots or larger are placed in individual boxes that secure the plant at the base of the pot, preventing it from tipping over.

The cardboard used for the boxes is specially made to provide resistance to potential impacts during transport.

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