Astra Double Blue
Platycodon grandiflorus 'Astra Double Blue'
Astra Double Blue blooms from July through August.
Bloom time
Jul–Aug
Hardiness
Zones 3–8
Sun
Full sun
Water
Moderate water
Mature size
0.25 m × 0.3 m
Type
Perennial
Bloom calendar
When Astra Double Blue is typically in flower across the year.
Growing Astra Double Blue
Plant it in full sun. It prefers moderate water. It is hardy in USDA zones 3–8. Expect it to reach about 0.25 m tall and 0.3 m wide at maturity, in roughly 2 years.
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Design a garden with this
Drop this plant onto a 3D plan, see how it fills in, and watch your whole garden bloom across the year.