Photo of Nicotiana knightiana flower by Avant Gardens

Photo by Avant Gardens

Used with permission, all rights reserved

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Nicotiana knightiana

Plant type

annual / biennial

size

  • H: 36"-48"
  • W: 2'

planting zones

  • 9a-10b

More Options

Nicotiana knightiana plant details

Nicotiana knightiana is a broadleaf deciduous, evergreen or semi-evergreen annual / biennial with green foliage. In spring and summer green flowers emerge. Grows well with sun - mostly shade and regular water. Does well in acidic, alkaline, rich and well-drained soil. A good option if you're seeking something humidity tolerant.

CHARACTERISTICS OF Nicotiana knightiana

Plant type: annual / biennial
Plant family: solanaceae
Foliage: deciduous, evergreen or semi-evergreen green
Mature size: 2 FT wide, 36 IN - 48 IN - tall
Flowers: green blooms in spring and summer
Uses: self-sowing

GROWING CONDITIONS for Nicotiana knightiana

USDA Zones: 9a - 10b
Sun exposure: sun - mostly shade
Watering frequency: regular
Resistant to: humidity
Soil needs: acidic, alkaline, rich and well-drained

Nursery contributed plant descriptions

A tough sun loving Tobacco. Sturdy rosettes of large, heart shaped, silvery leaves gradually lengthen into elegant stems of pale green, tubular flowers, flaring to reveal moss green petals.Becomes shrubby with age.A short lived perennial that should self seed nicely.The young rosettes make an attractive foil for any number of potential suitors.

By: Zephs

Distinct from N. langsdorfii with clusters of smaller small pale green tubular flowers with that are dusted with white powder. Rounded foliage also has the distinctive powdery cast. Self-sows.

Gardening facts about Nicotiana knightiana plant

How to Grow Nicotiana knightiana

  • Sun Exposure

    • sun - mostly shade
  • Water Needs

    • regular
  • Soil Needs

    • acidic
    • alkaline
    • well-drained
    • rich
  • Special Situation

    • humidity tolerant

Features

  • Foliage Color

    • green
  • Flower Color

    • green
  • Flower Season

    • summer
    • spring
  • Foliage Season

    • evergreen
    • deciduous
    • semi-evergreen

See other plant types of Nicotiana for your garden

aka Coyote Tobacco

Plant Type

Annual / Biennial

Zones

1-12

Size

Height: 2'-5'

Width: 1'-2'

  • sun - mostly shade
  • regular
Photo of Nicotiana attenuata close-up, flower by Stan Shebs
View Plant

aka Desert Tobacco

Plant Type

Perennial

Zones

8b-12

Size

Height: 2'-3'

Width: 1'-2'

  • sun - mostly shade
  • regular
Photo of Nicotiana obtusifolia close-up, flower by Stan Shebs
View Plant

aka Nicotiana x 'Hot Chocolate', Hot Chocolate Flowering Tobacco

Plant Type

Perennial

Zones

9a-11

Size

Height: 3'-4'

Width: 1'-2'

  • mostly sun - mostly shade
  • regular
Photo of Nicotiana 'Hot Chocolate' flower by Annie's Annuals & Perennials
View Plant

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aka Nicotiana alata 'Lime Green', Lime Green Flowering Tobacco

Plant Type

Perennial, Annual / Biennial

Zones

8a-10b

Size

Height: 24"-36"

Width: 18"-30"

  • mostly sun - mostly shade
  • regular
Photo of Nicotiana 'Lime Green' flower by Annie's Annuals & Perennials
View Plant

More Options

aka Nicotiana affinis, Nicotiana alata grandiflora, Flowering Tobacco, Jasmine Tobacco

Plant Type

Annual / Biennial

Zones

1-11

Size

Height: 3'-5'

Width: 1'-2'

  • sun - shade
  • regular
Photo of Nicotiana alata 'Grandiflora' form by Annie's Annuals & Perennials
View Plant

More Options

+23 more Nicotiana
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