Astra Series Balloon Flower
Platycodon grandiflorus
plat-ee-KOH-don gran-dih-FLOR-us
Perennials: Flower
Balloon Flower
Zone
3: -40° to -30°
Min. Temp
Hardy: 28°
Plants form an upright mound of green foliage, bearing inflated buds that pop open into star-shaped double violet-blue blossoms. Division is seldom necessary, and not always very successful because of the carrot-like root. Long-lived, but dislikes being moved when established.
Appearance
Summer Foliage
Green
Fall Foliage
Blue
Flower Color
Blue
Blooming Time
Early Summer - Mid Summer
Habit
Upright
Height
6–12 in
Spread
12–18 in
Form
Ball / Globe
Characteristics
Type
Hybrid
Safety
Non-toxic
Growth Rate
Moderate
Tolerance/Resistance
Drought Tolerant
Attracts
Astra Series Balloon Flower
Uses/Placement
Edging
Optimal Growing Conditions
Sun Exposure
Full Sun - Part Shade
Soil Texture
Loamy
Soil Drainage
Well-drained
Soil Moisture
Average to Moist
Soil PH
Slightly Acidic: 6.0-6.5
PH Tolerance
Prefers neutral soil
Soil Amendment(s)
Compost
Fertilizer
Moderate Feeder
Fertilizer Formula
Balanced Fertilizer
Fertilizer Timing
Early Spring
Micronutrients
Trace Minerals Beneficial
Care
Care Level
Low
Behavior and Propagation
Spreading
Moderate Spreader
Propagation Method
Benefits from Pollinators
Propagation Licensing
Trademarked cultivar
Division Timing
Spring or Fall Division