Plant Calculator

Enter the approximate length and width of the area you will be planting and click 'Calculate' to determine how many Alcea rosea 'Blacknight' you will need.

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*Correct and successful spacing is complex and depends on project conditions.

Spotlight™

Alcea rosea 'Blacknight'

Hollyhock

  • Striking, dark purple flowers
  • Flowers on tall, sturdy stalks
  • Perennial?not biennial!!
  • Ideal for sunny gardens

Ball Horticulture
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Attracts Wildlife
Attracts Butterflies
Attracts Hummingbirds
Exposure
Full Sun
Foliage Color
Green
Soil Moisture
Average Water
Habit
Upright
Growing & Maintenance Tips for Alcea rosea Spotlight™ 'Blacknight'

To care for the Alcea rosea Spotlight™ Blacknight, ensure it receives full sun and well-drained soil. Water the plant regularly during dry spells and remove spent flowers to encourage further blooming.