Itea virginica 'Henry's Garnet'
Overview
Uses: Mass plantings along ponds and stream edges, rain gardens and low spots, shrub borders, foundation plantings, woodland edges.
Benefits: Long drooping racemes of fragrant white flowers in early summer, garnet-red autumn foliage that holds for weeks after neighboring shrubs have dropped, and a rare willingness to grow in both wet ground and partial shade.
USDA Hardiness Zones: 5–9
Sun: Full Sun, Partial Sun/Shade
Life Cycle: Semi-Evergreen Shrub
Growth Habit: Mounding, Arching — arching stems that root where they touch soil.
Bloom Color: White
Foliage Color: Green, maturing to Red and Burgundy in fall
Mature Height: 3–4 feet
Mature Width: 4–6 feet
Bloom Season: Late spring through early summer
Growth Rate: Moderate
Summary
The shrub to reach for when a bed stays wet, sits in half shade, and still needs to earn its keep in October.
'Henry's Garnet' is a selected form of our native Virginia sweetspire, chosen decades ago at the Scott Arboretum for two improvements over the wild species: noticeably longer flower racemes and far more reliable fall color. The flowers appear in early summer as narrow, slightly drooping white spikes four to six inches long, lightly fragrant, held above the foliage in enough quantity to change the look of the whole planting.
The fall display is the reason most people buy it. Foliage turns a deep garnet red — closer to wine than to orange — and holds that color for several weeks. In the warmer end of its range the leaves often stay on the plant well into winter, which is why it is classified as semi-evergreen rather than simply deciduous. In colder zones the leaves drop, but only after the color has run its course.
Structurally it is a low arching mound that spreads slowly by suckers and by stems that root where they contact the ground. Left alone, a group planted three feet apart will knit into a single continuous mass over several seasons, which makes it a strong choice for stabilizing a pond edge or a shallow swale.
Care
Virginia Sweetspire 'Henry's Garnet' Care
Plant in full sun to partial shade. More sun produces heavier bloom and stronger fall color; more shade produces a looser, taller habit and a longer-lasting but less intense red. Both are acceptable outcomes — choose based on what the site offers.
Soil should be moisture-retentive. This is one of the few ornamental shrubs genuinely comfortable in periodically saturated ground, making it well suited to rain gardens, ditch edges, and low corners of the yard. It will grow in average garden soil as well, but it is not a plant for hot dry sites.
Water consistently through establishment and during summer dry spells. Wilting foliage is the first sign it has gone too dry; recovery is usually complete once water is restored, but repeated stress costs you fall color.
Feeding is optional. A single spring application of a slow release fertilizer supports growth in poor soil. In average ground the plant does fine without it.
Prune immediately after flowering if you want to control size, since flower buds for the following year form on old wood later in the season. Removing a few of the oldest stems at ground level each year keeps the mound from opening up in the center. Suckers can be dug and moved in early spring if you want to extend the planting.
Size
What Size is the Virginia Sweetspire 'Henry's Garnet' for Sale Online?
Our Virginia Sweetspire 'Henry's Garnet' ships in a greenhouse-grade grow pot and is appropriately sized for its container at the time of shipment. If you have specific sizing or planting questions, please contact us.
How Large Does Virginia Sweetspire 'Henry's Garnet' Grow?
Mature plants reach roughly 3 to 4 feet tall and 4 to 6 feet wide, wider than tall as they age and spread. Growth is moderate. For a solid mass, space 3 feet on center; for distinct mounds, allow 5 feet.
Additional Information
What are some common names for this plant?
The most common names for this shrub are Virginia Sweetspire and Virginia Willow. It is also sold occasionally as Tassel-White, a reference to the shape of the flower racemes.
How is 'Henry's Garnet' different from the straight species?
It was selected for two traits: flower racemes roughly twice the length of the typical wild form, and consistently deeper, longer-lasting red fall color. The habit is also somewhat lower and wider than the species, which makes it more useful as a mass planting than as a stand-alone specimen. You can browse similar selections in our Native Plants of North America collection.
Can it grow in wet soil?
Yes. Virginia sweetspire occurs naturally along stream banks and in low woods, and it handles soil that stays damp or floods periodically better than nearly any other flowering shrub in this size range. It is a standard choice for rain gardens and swale plantings.
Does it lose its leaves in winter?
It depends on where you garden. In zones 8 and 9 much of the foliage persists through mild winters, which is why it is described as semi-evergreen. In zones 5 through 7 the leaves color and then drop, usually late in the season after most other shrubs are bare.
Is it deer resistant?
Deer generally leave it alone, though no plant is completely reliable under heavy pressure, and new spring growth is the most vulnerable. If browse is a consistent problem, our deer-resistant shrubs and evergreens offer more dependable options.
