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How to Grow Virginia Sweetspire 'Scarlet Flame'

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Virginia Sweetspire 'Scarlet Flame'

Itea virginica 'Scarlet Flame'

shrub

Virginia Sweetspire 'Scarlet Flame' is a deciduous to semi-evergreen shrub prized for its dramatically colored foliage and fragrant white flower spikes. In spring and summer, it displays bright green leaves that transform to brilliant scarlet and deep purple tones in fall. This cultivar combines ornamental interest with low maintenance and adaptability to various growing conditions.

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Example Virginia Sweetspire 'Scarlet Flame' timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Virginia Sweetspire 'Scarlet Flame'

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Virginia Sweetspire 'Scarlet Flame'

    Late summer into fall

    Before the first fall frost (≈ Nov 8)

Sample dates for Pittsburgh, PA. Sign up to get exact Virginia Sweetspire 'Scarlet Flame' dates for your own zip code.

Growing Conditions

☀️
Sun: Full sun to partial shade (4-8 hours of sun daily); more sun produces better fall color
💧
Water: Moderate to consistent moisture; prefers moist soil but tolerates dry conditions once established. Water regularly during first growing season and during dry periods.
📏
Spacing: 36 inches
📅
Days to maturity: Not applicable (perennial shrub); reaches mature size in 3-5 years
🌱
Planting depth: Plant at same depth as root ball; top of root ball should be level with or slightly above soil surface

Soil

Type: Well-draining loamy to sandy soil; tolerates moist to wet conditions
pH: 5.5-7.0
Amendments:
Organic compost or peat moss to improve water retention Mulch to maintain consistent moisture and regulate soil temperature

Growing Zones

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Thrives in zones 5-9, with most vibrant fall color in cooler zones

5a 5b 6a 6b 7a 7b 8a 8b 9a 9b

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Growth Stages

1

Establishment

First 12 months

Young shrub with developing root system and initial shoot growth

Water regularly to establish deep roots. Mulch around base. Avoid heavy pruning in first year.

2

Vegetative Growth

Spring through early summer

Shrub develops full canopy with bright green foliage; upright arching habit becomes apparent

Prune lightly after flowering to shape. Maintain consistent moisture. Apply balanced fertilizer in spring.

3

Flowering

Late April through June (depending on zone)

Fragrant white flower spikes appear along branches in late spring to early summer

Deadhead spent flowers for tidiness, though not necessary. Do not prune during flowering.

4

Summer Growth

July through August

Foliage remains lush and green; new growth hardens off

Monitor for pests. Maintain watering schedule. Light pruning can be done after flowering.

5

Fall Color and Dormancy

September through November

Leaves transition through scarlet, crimson, and deep purple tones; plant prepares for winter

Enjoy vibrant color display. No major pruning needed. Leave seedheads for winter interest if desired.

Companion Planting

Plan your garden →

Plant with:

Oakleaf Hydrangea Fothergilla Clethra Serviceberry Japanese Maples Rhododendrons Azaleas Sedges

Avoid planting near:

Black Walnut (produces juglone toxin) Allelopathic plants that inhibit growth

Common Pests

  • Inspect foliage regularly; remove affected leaves; apply insecticidal soap if severe

  • Increase humidity; spray with water; use miticide if infestation is heavy

  • Prune out heavily infested branches; apply horticultural oil in dormant season

  • Improve air circulation; remove infected leaves; apply fungicide if widespread

Uses

🌿

Outstanding Fall Color

Ornamental

Virginia Sweetspire 'Scarlet Flame' is renowned for its dramatic scarlet, crimson, and deep purple foliage in autumn, providing season-long visual interest in landscapes and gardens. [source]

🦋

Pollinator and Wildlife Support

Wildlife

Fragrant white flower spikes attract bees, butterflies, and other pollinators in late spring. Seedheads provide food for birds in fall and winter. [source]

🏠

Cut Flowers and Arrangements

Household

Flower spikes and colorful fall foliage can be cut and arranged indoors. Fragrant spring blossoms bring sweet scent into the home. [source]

🍳

Honey Plant

Culinary

Fragrant flowers are a good honey plant, supporting beekeeping and local honey production when grown in quantity. [source]

🌿

Low-Maintenance Landscape Shrub

Ornamental

Requires minimal pruning and maintenance once established, making it ideal for naturalized areas, rain gardens, and low-fuss landscape plantings. [source]

Harvest Tips

Not a harvest plant. Enjoy flowering spikes for cut flowers in arrangements (late spring). Cut stems last 1-2 weeks in water. Foliage can be cut for arrangements during peak fall color (September-October).

Fun Facts

  • 🌱 Virginia Sweetspire is native to the southeastern United States and thrives in swampy, moist conditions, making it ideal for rain gardens and bioswales.
  • 🌱 'Scarlet Flame' is a cultivar selection bred specifically for its exceptionally intense fall color that surpasses the species in vibrance and consistency.
  • 🌱 The fragrant white flower spikes are reminiscent of miniature bottlebrush flowers and fill the spring garden with a sweet, honey-like scent that attracts native pollinators.

Gardening Terms

New to gardening? Learn about terms used in this guide:

Cultivar Deadhead Full Sun Mulch Partial Shade
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