Arnold Promise
Hamamelis × intermedia 'Arnold Promise'
Arnold Promise blooms from February through March.
Mature size, hardiness zones, sun and the trait tags were checked against named botanical sources for this plant. The bloom months and water need on this page were not.
Growing Arnold Promise
Plant it in part sun. It prefers moderate water. It is hardy in USDA zones 5–8. Expect it to reach about 11 ft tall and 9.8 ft wide at maturity, in roughly 6 years.
When to plant Arnold Promise
Plant Arnold Promise 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 5 to 8 range, spring means March to May and fall means August or September. Once settled, it blooms from February to March.
Month-by-month timing for your zone is on the planting calendar: for the middle of its range, start with zone 6 in March.
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