Petal Pals
shrub · 1996
Alden Biesen
Rosa 'Alden Biesen'
125 - 200 cm (approx. 4 - 6.5 ft)
Height
Continuous
Blooming
Full sun
Light
5–9
Zone
Plant & Flower Traits
Rose type
shrub
Bloom size
2 - 4 cm (approx. 1 - 1.5 inches)
Bloom habit
Large, elongated pyramidal clusters resembling Hydrangea paniculata.
Petal count
4 - 11 petals
Flowering
continuous
Habit
upright
Color
pink
Fragrance
slight
Foliage
Dark green
Foliage surface
Semi-glossy, leathery
Fragrance Notes
Mild and fresh scent, often described as nearly unscented or having a very light fragrance.
Color Description
Soft marzipan-pink with a white center and paler reverse; flowers gradually fade to an attractive light green hue as they age.
🌱 Growth & Garden Habits
Light
Full sun
Height
125 - 200 cm (approx. 4 - 6.5 ft)
Spread
100 - 250 cm (approx. 3.3 - 8 ft)
Soil
Thrives in fertile, well-drained soil; tolerant of various soil types including chalk, clay, loam, and sand.
Hardiness Zone
Zone 5–9
Disease Resistance
Excellent
🌿 Care Guide
Watering
Regular watering is required, especially during dry spells; the cultivar has moderate drought tolerance once established.
Fertilizer
Apply a balanced rose fertilizer in early spring and again after the first flush of blooms to support continuous flowering.
Pruning
Responds well to simple annual pruning in late winter or early spring and light deadheading to encourage repeat blooms.
Pests & Diseases
High resistance to powdery mildew, blackspot, and rust; occasionally susceptible to aphids on young shoots.
🧬 Pedigree
'Pleine de Grâce' × 'Pretty Pink'
🏆 Awards & Recognition
Gold Medal Geneva (1998); Certificate of Merit Kortrijk (1995); Certificate of Merit Genoa (1997); Certificate of Merit Geneva (1998).