Bridal Wreath Spiraea (Spiraea × vanhouttei)

Bridal Wreath Spiraea

Spiraea × vanhouttei

Cascading white blooms look like frothy bridal veils. Deciduous flowering shrub; common name: Vanhoutte Spiraea.

Full sun
1–2/week
Beginner
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Plant Needs

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Sunlight Full sun to partial shade; produces the most abundant blooms in full sun
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Watering Water deeply when the top 5 cm of soil is dry; avoid overwatering to prevent root rot
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Temperature Extremely cold-hardy to -30°C; tolerates hot summer temperatures up to 35°C
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Characteristics

  • Leaf: Small oval to lanceolate leaves with serrated margins, blue-green to medium green foliage
  • Flower: Clusters of tiny five-petaled white blooms on arching woody stems
  • Stem: Slender, arching woody stems forming a dense, rounded habit
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Care Guide

Watering

Keep soil consistently moist during active growth; avoid waterlogging

Fertilization

Apply balanced slow-release fertilizer once in early spring. Do not over-fertilize, as excessive nutrients can reduce bloom production

Eggshell powder top dressing:Crush dried eggshells into fine powder; sprinkle 1 tbsp per plant around the base and gently work into topsoil to boost soil calcium content
Pruning
  • Prune immediately after flowering to shape the shrub and encourage new growth for next year's blooms
  • Remove dead, damaged, or crossing branches to improve airflow and reduce disease risk
  • Thin overcrowded stems to maintain an open, rounded habit
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA confirmed non-toxic; no harmful effects for cats

Humans: Non-toxic to humans; no known adverse effects from ingestion or contact

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Garden Uses & Culture

Culture: Symbolizes purity and new beginnings due to its delicate white bridal-like blooms

Usage: Ornamental garden shrub, hedge plant, cut flower arrangements for spring displays