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Midnight Sky Heliotrope

Midnight Sky Heliotrope

HELIOTROPIUM arborescens 'Midnight Sky'

Blooms Summer through Fall
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Ships as 4"
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Common Name(s)
Heliotrope
Sunlight
Full Sun (6+ hrs) or Partial Sun / Shade (3-6 hrs)
Watering
Let dry
Max Height
1'–2'
Max Spread
18"-24"
Garden Design Role
Bedding
Bloom Season
Summer, Fall
Lifespan
Annual
Growing Habit
Mounding, Clumping, Compact
Drought Resistance
High drought resistance
Bloom Color
Blue, Purple
Foliage Color
Purple/Black, Green
Stem Color
Green, Purple/Black
Themes
Cool Blue, Gothic, Sunset
Family
Boraginaceae
Ship Size
4"

Midnight Sky Heliotrope (Heliotropium arborescens 'Midnight Sky') is a dramatic, deep-colored selection of the beloved heliotrope, prized for its exceptionally rich royal blue-purple flower clusters that represent some of the deepest, most saturated blue-purple tones achievable in any flowering annual. Where many heliotropes fade to lavender in summer heat, 'Midnight Sky' holds its intense, jewel-toned royal blue color with outstanding color fastness throughout the season — paired with the classic, intoxicating vanilla-cherry fragrance that makes heliotropes so universally beloved. The lush, dark green, deeply textured foliage creates a striking backdrop for the deep blue flower heads, resulting in a plant of exceptional sophistication and garden presence.

These Professional Grade 4" plants are grown to the highest nursery standards, delivering well-rooted specimens that establish quickly and perform reliably in warm, sunny garden conditions. Midnight Sky Heliotrope excels in full sun to partial shade and is perfectly suited to patio containers, mixed borders, cottage garden plantings, and window boxes where its extraordinary deep color and fragrance can be appreciated at close range throughout the growing season.

  • Deepest Royal Blue-Purple Blooms: Among the most intensely colored heliotropes available, 'Midnight Sky' delivers exceptional jewel-toned royal blue-purple flower clusters that hold their deep color with outstanding fastness throughout the season.
  • Intoxicating Vanilla-Cherry Fragrance: The classic, powerful heliotrope fragrance fills the surrounding garden with an irresistible vanilla-cherry scent — especially intense on warm, sunny afternoons near patios and pathways.
  • Superior Color Holding in Heat: Unlike many heliotropes that fade to soft lavender in summer heat, Midnight Sky maintains its deep, saturated royal blue color reliably throughout the warm growing season.
  • Outstanding Patio & Container Plant: Compact, mounding habit and extraordinary color-fragrance combination make this an ideal centerpiece for patio containers, window boxes, and raised planters where both qualities can be experienced up close.
  • Butterfly & Pollinator Magnet: Deep blue flower clusters are a proven attractor for butterflies, hummingbirds, and beneficial pollinators throughout the long bloom season.

These 4" healthy live plants thrive in full sun to partial shade with rich, moist, well-drained soil. Water regularly and consistently — do not allow to dry out completely. Hardy as a perennial in USDA Zones 10–11; grown as a heat-loving annual in all other climates. Plant after all danger of frost has passed. Mature height 18–24 inches with a spread of 12–18 inches. Blooms late spring through fall. Deadhead spent flower clusters to maintain continuous bloom and a tidy, attractive habit.