Growing Information

Growing zone guide
Growing Zone Zone 4, Zone 5, Zone 6, Zone 7, Zone 8
Sunlight Bright light
Type of Soil Slightly acidic to neutral
Mature Height 3 to 4 feet
Maintenance Level Low maintenance
Water Requirement Moderate watering (once a week)

Learn more about this plant

Additional Information
Growth Rate

  • Speed: Moderate grower, forming a dense, rounded mound.
  • Mature Growth: Reaches 2-3 feet tall and 3-4 feet wide, making it ideal for borders, mass plantings, and small garden spaces.
Colorful Leaves Yes
Flowering Yes
Bloom Color Pink
Ornamental Berries N/A
Disease resistant Yes
Cold Tolerant Yes
Heat Tolerant Yes
Drought Tolerant No
Deer Resistant No
Edible No
Wildlife Attraction
  • Attracts: Bees, butterflies, and other pollinators are drawn to the nectar-rich flowers.
  • Wildlife Resistant: Some resistance to deer and rabbits.
Self-pollinating Self-pollinating
Seasonality
  • Foliage Season: Spring to fall (deciduous).
  • Flowering Season: Early summer to mid-summer (June to July).
  • Hardiness Zones: USDA Zones 4-8
Ideal For
  • Pollinator gardens
  • Cottage gardens
  • Borders and mass plantings
  • Low-maintenance landscapes
  • Foundation plantings
Leaf Description
  • Color: Bright red foliage emerges in spring, maturing to green in summer, and transitioning to orange-red in the fall.

  • Form: Oval, finely toothed leaves that provide a textured, vibrant look throughout the growing season.

  • Fall Interest: Provides stunning fall foliage with shades of red, orange, and gold.
Flower Description
  • Color: Light pink to rosy-pink flower clusters.
  • Form: Small, flat-topped clusters of tiny flowers (corymbs) bloom at the tips of the branches.
  • Bloom Time: Blooms from early to mid-summer, lasting for several weeks.
  • Fragrance: Not fragrant, but visually appealing.
Pruning & Maintenance

  • Timing: Prune in late winter or early spring before new growth begins. Deadhead spent flowers to encourage a second flush of blooms in late summer.
  • Method: Remove dead or damaged branches, and shape the plant as needed. Cutting back the shrub after flowering can help maintain a compact form and encourage more vibrant new growth.
Water Needs

  • Watering Frequency: Water regularly during the first growing season to establish roots. Once established, Spiraea 'Firelight' is drought-tolerant and requires minimal watering.
  • Soil Moisture: Prefers average moisture levels but can tolerate occasional dry spells. Avoid waterlogged conditions, which can cause root rot.
Light Needs

  • Light Exposure: Thrives in full sun. At least 6 hours of direct sunlight per day is recommended for optimal flowering and vibrant foliage color.
Harvesting

Not typically harvested for cut flowers, as the blooms are short-stemmed and better appreciated in the landscape

– Can be clipped for small garden bouquets, though vase life is limited

Deadheading (removing spent flower clusters) after the first bloom can encourage light rebloom and keep the plant tidy

Prune in early spring to promote vigorous new growth and better flowering the following season

– Foliage is not used ornamentally in arrangements but provides attractive color in the garden from spring through fall

Fertilizing

  • Fertilization Time: Fertilize in early spring just before new growth begins.
  • Fertilizer Type: Use a balanced, slow-release fertilizer or organic compost to promote healthy growth and abundant blooms.
Additional Care Tips
  • Mulching: Apply a 1-2 inch layer of mulch around the base to retain moisture, suppress weeds, and regulate soil temperature. Keep mulch away from the crown to prevent rot.

  • Drought Tolerance: Once established, Spiraea 'Firelight' is drought-tolerant, making it ideal for low-maintenance and water-wise gardens.

  • Pests and Diseases: Resistant to most pests and diseases, but proper air circulation and well-drained soil will help prevent any potential fungal issues.
Pollination

  • Pollination Type: Pollinated by bees and butterflies, which are attracted to the nectar-rich flowers.
  • Seed Production: While Spiraea 'Firelight' may produce seeds, it is primarily grown for its ornamental foliage and flowers rather than seed production.
Companion Plants
  • Nepeta (Catmint)
  • Lavandula (Lavender)
  • Salvia
  • Echinacea (Coneflower)
Flowering and Seasonality
  • Foliage Season: Spring to fall (deciduous).
  • Flowering Season: Early summer to mid-summer (June to July).
  • Hardiness Zones: USDA Zones 4-8
  • Color: Light pink to rosy-pink flower clusters.
  • Form: Small, flat-topped clusters of tiny flowers (corymbs) bloom at the tips of the branches.
  • Bloom Time: Blooms from early to mid-summer, lasting for several weeks.
  • Fragrance: Not fragrant, but visually appealing.
Pet Friendly

Yes

Growing Zone
  • Zone 4
  • Zone 5
  • Zone 6
  • Zone 7
  • Zone 8

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