Rhododendron x obtusum 'Arneson Gem'
shrub RHS Award

Arneson Gem Azalea

Rhododendron x obtusum 'Arneson Gem'

Not currently listed at our partner nurseries.

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Essentials

At a Glance

Plant Type

Shrub

Height

60 inches

Width

60 inches

Light

Partial Sun

Zones

5, 6, 7, 8

Water

Consistent moisture, avoid drought

Humidity

Prefers moderate humidity

Lifespan

20+ years

Native To

Cultivated hybrid

Toxicity

Toxic to pets if ingested

The Story

Plant Bio

A compact, low-growing rhododendron that produces abundant pink flowers. Noted for its exceptional hardiness and attractive, dense foliage.

Bloom Period:

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

Uses & Benefits:

Ornamental UsesProvides vibrant spring blooms and evergreen foliage, enhancing garden aesthetics.
Practical UsesActs as a natural privacy screen and windbreak.
Ecological BenefitsSupports pollinators like bees and hummingbirds during blooming season.

Marketplace

Where to Buy

We couldn't find this plant listed online right now.

Shipping costs Year-round shipping Free shipping

Planting

How to Grow

  1. Select a well-draining, acidic soil with organic matter.
  2. Tuck seeds or cuttings in early spring for best results.
  3. Mist cuttings regularly to maintain humidity and promote rooting.
  4. Ensure the plant receives partial to full sun for optimal growth.
  5. Water consistently, especially during dry spells, to keep soil moist.
  6. Apply mulch around the base to conserve moisture and regulate soil temperature.

Pro Tip

Use acid-loving fertilizer in early spring for vigorous blooms.

Keep It Thriving

Care Guide

Do

  • Maintain consistent moisture ๐ŸŒฑ
  • Apply mulch to conserve soil moisture
  • Feed with acid-specific fertilizer in spring

Don't

  • Avoid overwatering to prevent root rot โŒ
  • Do not expose to harsh, direct midday sun in summer
  • Avoid heavy, clay soils that drain poorly โŒ

Seasonal Care Calendar

TaskJanFebMarAprMayJunJulAugSepOctNovDec
Fertilize
Mulch
Prune

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Shaded garden borderWoodland garden accentEvergreen hedge

Companion Plants

Ferns Hellebores Pieris Camellias Azaleas

Multiply

Propagation Methods

Good to Know

Common Questions

Arneson Gem Azalea questions

What zones can Arneson Gem Azalea grow in?

Arneson Gem Azalea is hardy in USDA Zones 5โ€“8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Arneson Gem Azalea deer resistant?

Yes โ€” Arneson Gem Azalea is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Arneson Gem Azalea bloom?

Arneson Gem Azalea typically blooms in mid-spring through late spring. Exact timing shifts a week or two with your zone โ€” Sow's bloom calendar maps it to your garden.

Does Arneson Gem Azalea need full sun?

Arneson Gem Azalea does best in part shade.

Keep exploring

Grow Arneson Gem Azalea 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.

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