Illustration
Mount Airy Fothergilla
Fothergilla × intermedia 'Mount Airy'
Also called mt. airy fothergilla
Mount Airy Fothergilla blooms from April through May.
Months here are Northern Hemisphere months; in the Southern Hemisphere, shift them by six months.
Growing Mount Airy Fothergilla
Plant it in full sun. It prefers moderate water. It is hardy in USDA zones 5–8. Expect it to reach about 5 ft tall and 4 ft wide at maturity, in roughly 5 years (a house reading).
No toxicity note is on file for Mount Airy Fothergilla. That is not a clearance: check its safety for people and pets before planting.
What was checked
Mature height and spread, hardiness zones, sun, water, bloom months and color and the trait tags were checked against named botanical sources for this plant, with what the sources could not settle written down; years to mature size rests on a recorded house rule where no publisher states one, and is marked so; its common name and alternate names have not been checked yet. Each fact above carries its own mark. The planting, spacing and size sections are derived from these checked facts by a fixed rule, not checked separately, and the plant type is the library's own classification.
When to plant Mount Airy Fothergilla
Plant Mount Airy Fothergilla 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. In zone 6, the middle of its hardy zones 5 to 8, spring means March to May and fall means August or September. Once settled, it blooms from April to May.
Month-by-month timing for your zone is on the planting calendar; if you garden near zone 6, the middle of this plant's hardy range, start with zone 6 in March. Derived from the plant's category, zones and bloom months plus typical zone frost dates, not checked separately.
How big does Mount Airy Fothergilla get?
5 fttall5 ft 7 inan adult4 ftwideSee Mount Airy Fothergilla in a garden plan: the planner shows it in 3D beside everything else you add, growing toward this size over the years.
How far apart to plant Mount Airy Fothergilla
Derived from the mature spread above by a fixed rule, not checked separately: spacing is the spread, center to center.
Space Mount Airy Fothergilla about 4 ft apart, center to center, so each plant has room to reach its full width.
Add Mount Airy Fothergilla to a garden plan and the planner draws it at its full width, so you see the spacing before you buy.
Where these facts come from
Mount Airy Fothergilla's height, spread, hardiness zones, sun, water, bloom months and color, trait tags, soil, diseases, pests and toxicity were checked against 11 published sources on September 23, 2026. Each one is linked below with every fact it carried, which can include a fact this page still marks as not yet checked, because a source carrying a value is not the same as the value being held to the standard. Facts not in that list, and the planting, spacing and size sections, are not covered by these sources.
- Missouri Botanical GardenPlant Finderheight, spread, hardiness zones, sun, water, bloom months and color, trait tags, soil, diseases and pests
- NC State ExtensionGardener Plant Toolboxheight, spread, hardiness zones, sun, water, bloom months and color, trait tags, soil, diseases and pests
- Plant Addictsheight, spread, hardiness zones, sun, water, bloom months and color, trait tags, soil and pests
- Chicago Botanic GardenPlant Finderheight, spread, hardiness zones, sun, water, bloom months and color and soil
- RHSRoyal Horticultural Societyheight, spread, sun, bloom months and color, soil, diseases and pests
- University of Wisconsin HorticultureFothergilla, Susan Mahr; a multi-taxon genus articleheight, spread, sun and diseases
- secrest.osu.eduSecrest Arboretum, The Ohio State University (Fothergilla: The Good Do...height, spread and pests
- The Morton ArboretumDwarf fothergilla, the Fothergilla gardenii page; quoted from its 'Mou...height, hardiness zones and sun
- Penn State ExtensionHolly Thorpe, Fothergilla - A Four Season Shrub to Consider for Your G...height and pests
- Plant AddictsIs Fothergilla Poisonous?, a genus articlepests and toxicity
- plantdatabase.uconn.eduUniversity of Connecticut Plant Database (Mark H. Brand; the Fothergil...height and sun
How the checking works, and what each standard covers, is on the verified plants page.
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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.