This is another upright white with macrophylla heritage. Beautiful buds. Silvia Saunders reported it as a heavy seed setter.  It certainly has a lot of pollen!

Cultivar: Serenade
Year: 1941
Seedling No: 11512
Parentage: 4B: F2 of 1591. 1591 = (lactiflora X macrophylla)
Flower: Color: buds pink with prominent white flare on back, opens light pink
Form: single, 8 petals
Blooms: Week 3 or 4
Carpels: 2-3, light yellowish green, slightly woolly
Stigmas: red
Disc: pink and white (Silvia Saunders’ notes); white
Stamens: filaments red at base, shading to light yellow, abundant stamens
Plant: Habit: upright, irregular
Foliage color: light green, shiny
Foliage form: fairly wide leaves, entire (not lobed)
Height: 24″ (reported); 34″ in 2021 and 2022
Recommendation: Recommended
Availability: Several specialty nurseries