Buddleja 'Wattlebird' is a hybrid cultivar of Buddleja madagascariensis × Buddleja asiatica raised by R J Cherry in Australia in 1993.  'Wattlebird' has been erroneously identified as a cultivar of Buddleja × weyeriana in some treatises. 
Buddleja 'Wattlebird' is a lax, spreading shrub growing to a height and spread of 3.6 m × 2.7 m. The inflorescences comprise long, slender panicles of very fragrant creamy white to orange yellow flowers which persist from midsummer to mid-autumn. The leaves are mid-green above, and grey tomentose below. 
The hybrid is tender, requiring greenhouse protection during winter in the UK. USDA zones 8–9.