‘Gibraltar’ is a stunning, deciduous azalea that blooms in late spring. It first produces deep crimson-orange buds that open to reveal huge trusses of funnel-shaped, slightly frilled, vivid orange flowers surrounded by narrow green leaves.
This hardy azalea looks great as a border, flowering hedge or as a privacy screen. Happy in any aspect, ‘Gibraltar’ thrives when planted in moist but well-drained soil in either the full sun or partial shade.
‘Gibraltar’ has been awarded the Award of Garden Merit given by the Royal Horticultural Society (RHS), which helps gardeners make informed choices about plants.
To use simply add half a cap to a 9 Litre watering can.
Choose a sheltered site with dappled shade, however, dwarf alpine species will tolerate full sun. Avoid sites exposed to early morning sun in spring, as this may damage frosted flowers.
Ensure the soil conditions are correct. Rhododendrons must have moist but well-drained, acid soil between pH 5.0 and 6.0 that is rich in organic matter.
October or March/April are the best times for planting. Don’t plant deeply, as rhododendrons are surface rooters. Apply a loose 8cm mulch of acidic organic material and water well to finish.
If you have alkaline soil, grow rhododendrons and azaleas as container plants. Use ericaceous loam-based compost and repot every other year into fresh compost in spring.
Caring and Maintenance
To keep your plants performing at their best, in spring, apply slow-release ericaceous fertiliser and renew the acidic mulch and keep well watered.
Rhododendrons don’t require pruning apart from removing dead wood and deadheading if practical. If the plant outgrows its space, cutting back is tolerated best from deciduous azaleas and rough-barked rhododendrons. After cutting back, mulch, feed and keep well watered.
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