Azalea Caroline Gable
Azalea Caroline Gable is a compact evergreen azalea bearing rose-red hose-in-hose flowers. The double-petalled blooms, where one flower sits inside another, give each stem a full, layered look. This azalea flowers reliably in spring, typically September to October, and the rich red tones hold well through the display. Mature plants reach around 1 to 1.5m high and wide.
Caroline Gable suits a cottage garden, a Japanese-style planting, or a mixed shrub border. Plant several together for a strong massed display, or use a single plant as a focal point in a shaded bed. The rose-red flowers pair well alongside white or soft pink azaleas, and the plant holds its shape neatly between seasons.
Grow this azalea in part shade or morning sun with afternoon shade. It prefers free-draining, acidic soil enriched with compost. Mulch around the base to keep the shallow roots cool and retain moisture. Avoid exposed, dry positions and poorly drained ground.
Water consistently through the first summer and during dry spells in following seasons. Trim lightly after flowering to maintain a tidy shape. Like all azaleas and rhododendrons, Caroline Gable is toxic to cats, dogs, and horses if eaten, so take care in households with pets.
Trimming: Trim lightly straight after flowering in late spring, around October to November. Azaleas flower on old wood, so keep cuts light and avoid hard pruning. Remove any dead or crossing stems to keep the shape tidy.
Deadheading: Deadheading is not essential. You can remove spent blooms by hand to neaten the plant, but leaving them does no harm to its health or next season's flowering.
Fertilising: Feed in spring with a fertiliser formulated for azaleas, camellias, and rhododendrons. A light second application after flowering supports new growth. Avoid over-feeding, as the shallow roots are sensitive to excess nutrients.
Watering: Keep the soil evenly moist but never waterlogged. Water deeply through summer and during any dry periods. A layer of mulch helps retain moisture and protects the shallow root system.
Pest Control: Watch for aphids, thrips, two-spotted mite, and scale insects. Check leaf undersides regularly and treat early with a suitable spray or horticultural oil if numbers build.
Disease Management: Free-draining soil and good airflow prevent most problems. Wet or heavy ground encourages Phytophthora root rot, so avoid overwatering and improve drainage before planting. Clear fallen leaves and spent flowers to reduce the risk of petal blight and leaf gall. Pick off any pale, swollen leaf galls and dispose of them in the bin, not the compost.
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