Rhododendron Catawbiense 'Boursault' - Azalea

🌿 Characteristics

Type: Hardy evergreen shrub
Common name: Azalea, Japanese Azalea
Scientific name: Rhododendron 'Catawbiense Boursault'
Flower color: Rose-mauve flowers in dense, spectacular clusters
Mature height: 1.5 to 2 m
Mature width: 1.2 to 1.8 m
Habit: Rounded, dense, and very ornamental
Flowering period: May to June (abundant and early flowering)
Exposure: Partial shade to shade
Watering needs: Moderate
Soil type: Acidic, well-drained, rich in organic matter
Hardiness zone: Zone 4 to 8
Drought tolerance: Good once established
Meliferous plant: Yes
Attracts pollinators: Yes
Toxicity to animals: Toxic if ingested

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✂️ Care

After flowering, remove spent blooms to encourage better branching and more abundant flowering the following year. Apply a thick organic mulch around the base to retain soil moisture and protect shallow roots. Water regularly during the first two years to establish a deep and vigorous root system.

Once well-rooted, rhododendrons require little maintenance. Avoid calcareous soils and overly sunny exposures, which can scorch the foliage. Prune lightly after flowering to maintain a compact and balanced shape.