Peony (Paeonia Itoh) Bartzella
An intersectional hybrid between a tree peony and a herbaceous peony forming a plant about 80cm high with a woody base. It has deeply divided, mid-green leaves with pointed segments, and large, scented, semi-double to double, lemon-yellow flowers in early to mid-summer. An adult plant can produce up to 50 flowers. "Bartzella" won the gold medal for the best variety in 1986.
Latin Name: Paeonia Itoh Bartzella
English Name: Peony
Species: Paeoniaceae
Genus: Paeonia
Foliage Type: Deciduous
Foliage: Green
Flower: Lemon - Yellow
Flowering Period: May - July
Suggested Location: Outdoor.
Suggested Soil Type: Moist but well-drained. Sand, Clay, Loam
Suggested Exposure to Sunlight: Full sun, Partial shade
Suggested Exposure to Weather: Sheltered
Hardiness Rating: H6
Lowest Temperature Tolerance: -20°C to -15°C (68°F - 59°F)
Growth Habit: Clump-forming
Pests: May be susceptible to leaf and bud eelworm and soil-dwelling swift moth larvae
Diseases: May be susceptible to a virus, honey fungus, Verticillium wilt, peony leaf blotch and peony wilt
Pruning: Remove dead flowers as they fade, then cut back to about 15cm in autumn as leaves die off. Trim back to the topmost, live bud when growth starts in spring
Final Height: 50 cm – 1 m (1.6 ft – 3.2 ft)
Final Sideways Spread: 50 cm – 1 m (1.6 ft – 3.2 ft)
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