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Lobelia siphilitica


Giant Blue Lobelia

USDA Zone: 4-9

Plant number: 1.328.500


The perennial Lobelias have upright spikes of large flowers, not at all like the more familiar trailing types grown in hanging baskets. This easy-to-grow native species bears heads of dark blue to white flowers through late summer and fall, over dark-green leaves. Plants will usually self-sow, and the seedlings are easily moved while still small. Clumps may also be divided in early spring. Much more perennial in habit than most of the other hardy types. Attracts both butterflies and hummingbirds. Excellent for cutting. CAUTION: Harmful if eaten.

Further details for
Lobelia siphilitica

Optimal Growing Conditions

Sun Exposure
  Full Sun or
  Partial Shade
Soil Type
  Normal or
  Sandy or
  Clay
Soil pH
  Neutral or
  Alkaline or
  Acid
Soil Moisture
  Average or
  Moist
Care Level
  Easy
Appearance and Characteristics

Flower Colour
  Deep Blue
  Light Blue
  Mixed
  White
Blooming Time
  Mid Summer
  Late Summer
  Early Fall
  Mid Fall
Foliage Color
  Deep Green
Plant Uses & Characteristics
  Accent: Good Texture/Form
  Attracts Butterflies
  Attracts Hummingbirds
  Border
  Containers
  Cut Flower
  Massed
  Poisonous/Toxic
  Specimen
  Waterside
  Wild Flower
  Woodland
Flower Head Size
  Large
Height
   60-90 cm
   23-35 inches
Spread
   30-60 cm
   12-23 inches
Foot Traffic
   None

Growth Rate
   Medium
Disclaimer: This information is presented for reference only. This plant is not currently part of our Heritage Perennials lineup.












Lobelia siphilitica


Giant Blue Lobelia

USDA Zone: 4-9

Plant number: 1.328.500


The perennial Lobelias have upright spikes of large flowers, not at all like the more familiar trailing types grown in hanging baskets. This easy-to-grow native species bears heads of dark blue to white flowers through late summer and fall, over dark-green leaves. Plants will usually self-sow, and the seedlings are easily moved while still small. Clumps may also be divided in early spring. Much more perennial in habit than most of the other hardy types. Attracts both butterflies and hummingbirds. Excellent for cutting. CAUTION: Harmful if eaten.

Further details for
Lobelia siphilitica

Optimal Growing Conditions

Sun Exposure
  Full Sun or
  Partial Shade
Soil Type
  Normal or
  Sandy or
  Clay
Soil pH
  Neutral or
  Alkaline or
  Acid
Soil Moisture
  Average or
  Moist
Care Level
  Easy
Appearance and Characteristics

Flower Colour
  Deep Blue
  Light Blue
  Mixed
  White
Blooming Time
  Mid Summer
  Late Summer
  Early Fall
  Mid Fall
Foliage Color
  Deep Green
Plant Uses & Characteristics
  Accent: Good Texture/Form
  Attracts Butterflies
  Attracts Hummingbirds
  Border
  Containers
  Cut Flower
  Massed
  Poisonous/Toxic
  Specimen
  Waterside
  Wild Flower
  Woodland
Flower Head Size
  Large
Height
   60-90 cm
   23-35 inches
Spread
   30-60 cm
   12-23 inches
Foot Traffic
   None

Growth Rate
   Medium
Disclaimer: This information is presented for reference only. This plant is not currently part of our Heritage Perennials lineup.