Hydrangea (Hydrangea macrophylla, Hydrangea paniculata, Hydrangea arborescens, Hydrangea quercifolia (various species)

Hydrangea shrubs are deciduous flowering plants known for their large, showy blooms and lush foliage. Native to Asia and the Americas, they are popular in gardens and landscapes for their dramatic flower clusters, which can vary in color depending on species and soil pH. With varieties ranging from compact to large, hydrangeas offer versatility and seasonal beauty.

Sun Needs:

  • Partial sun to full sun (varies by species)
  • H. macrophylla and H. quercifolia: Prefer morning sun and afternoon shade
  • H. paniculata and H. arborescens: Tolerate more sun, even full sun in cooler climates
  • Too much shade may reduce blooming

Bloom Time:

  • Late spring through summer (some into fall)
  • Reblooming varieties may flower multiple times in a season
  • Flower color can vary with soil pH (blue in acidic, pink in alkaline)
Size:

Height: 3 to 10 feet, depending on species and variety

Width: 3 to 8 feet, depending on growth habit

Attributes:
  • Large, globe- or cone-shaped flower clusters
  • Color-changing blooms based on soil pH (in H. macrophylla)
  • Attractive foliage, with some varieties offering fall color
  • Excellent for borders, hedges, and foundation plantings
  • Popular for cut flowers and dried arrangements
Care Tips:
  • Plant in well-draining, rich soil with consistent moisture
  • Mulch to retain moisture and regulate soil temperature
  • Water deeply during dry spells, especially in the first year
  • Fertilize in early spring and again in summer with a balanced or bloom-boosting fertilizer
Prune according to species:
  • H. macrophylla and H. quercifolia: Prune after flowering
  • H. paniculata and H. arborescens: Prune in late winter or early spring
  • Protect from harsh winter winds in colder zones
Pest Watch:
  • Look out for aphids, spider mites, and powdery mildew

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