5 Seeds Purple Blue Hydrangea Perennial Hardy Flowering Shrub

These hydrangea seeds produce stunning deciduous shrubs with large, globe-shaped flower clusters in shades of purple and blue. Their lush foliage and long-lasting blooms make them a classic choice for garden borders, foundation plantings, or as a focal point in any landscape, providing vibrant color from summer to fall.

Ideal for cut flower arrangements, the blossoms also dry beautifully for preserved bouquets. With proper care, these hardy perennials return year after year, adding reliable beauty to your garden. For best results, select a location with morning sun and afternoon shade, and maintain consistent moisture.

Species: Hydrangea macrophylla
Variety: Mixed (bloom color varies with soil pH)
Type: Perennial deciduous shrub
Plant Habit: Upright and mounding
Sun: Partial shade to full sun (afternoon shade in hot climates)
Soil: Rich, moist, well-drained; pH influences bloom color
Days to Harvest: Not applicable (flowers in second year)
Zones: 5-9
Germination: 14-30 days at 65-70°F; surface sow, light required
Sowing: Start indoors 6-8 weeks before last frost; press seeds into moist mix without covering
Spacing: 3-5 feet
Notes: Acidic soil produces blue flowers, alkaline yields pink, neutral to slightly acidic creates purple tones. Mulch to retain soil moisture and keep roots cool.