Komachi
Platycodon grandiflorus 'Komachi'
Komachi blooms from July through August.
Every fact this page states, and what the plant is called, was checked against named botanical sources, with the sources recorded beside each value and the unsettled points written down.
Growing Komachi
Plant it in full sun. It prefers moderate water. It is hardy in USDA zones 3–8. Expect it to reach about 1.6 ft tall and 1.3 ft wide at maturity, in roughly 2 years.
When to plant Komachi
Plant Komachi in early spring as soon as the soil is workable, or in early fall at least six weeks before your first frost, so roots establish in cool weather. For the middle of its hardy zones 3 to 8 range, spring means April to June and fall means August or September. Once settled, it blooms from July to August.
Month-by-month timing for your zone is on the planting calendar: for the middle of its range, start with zone 5 in April.
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Drop this plant onto a 3D plan, see how it fills in, and watch your whole garden bloom across the year.