Centaurea americana grow and care – herbaceous of the genus Centaurea also known as American starthistle, Centaurea americana annual used as ornamental plant, can grow in mediterranean, subtropics or temperate climate and growing in hardiness zone 4-11.

Leaves color green in lanceolate shape.

Centaurea americana flower

Flower color pink, purple or white the flowers petals like little horns base that divide several needle shape, the petals “sit” on green “ball” with spines on it.

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How to grow Centaurea americana growing and care:

Drained soil, moist soil, cool winter

What is the best way to start growing?
Plant / Seedling / Seed

Is it necessary to graft or use vegetative reproduction?
No

Difficulties or problems when growing:
Spines on the flowers, invasive

Recommended planting season?
Spring, summer, autumn

Pests and diseases:
Powdery mildew, aphids

Pruning season:
Winter

How to prune:
Prune dead leaves and flowers

Size of the plant?
40-140 cm (16-56 inches)

Growth speed in optimal condition:
Medium growing

Water requirement:
Small amount of water

Light conditions in optimal condition for growing:
Full Sun

Is it possible to grow indoor as houseplant?
No

Growing is also possible in a planter /flowerpot / containers:
Yes

Blooming information

Bloom season:
Spring / Summer

General information about the flower
Pink, purple or white flowers petals like little horns base that divide several needle shape, the petals “sit” on green “ball” with spines on it.

Scientific name:

Centaurea americana

Categories

Blooming Seasons
  • Spring flowers
  • Summer flowers
Flower colors
  • Pink flower
  • Purple flower
  • White flower
Climate
  • Mediterranean Climate
  • Subtropics Climate
  • Temperate Climate
Ornamental parts
  • Ornamental flower
  • Ornamental leaves
  • Ornamental plant
Plant growing speed
  • Average growing plants
Plant life-form
  • Annual plant
  • Herbaceous
Plant Uses
  • Ornamental plants
Planting Season
  • Autumn Planting
  • Spring Planting
  • Summer planting
Plants sun exposure
  • Full sun Plants
Watering plants
  • Small amounts of water
Hardiness zone
  • Hardiness zone 10
  • Hardiness zone 11
  • Hardiness zone 4
  • Hardiness zone 5
  • Hardiness zone 6
  • Hardiness zone 7
  • Hardiness zone 8
  • Hardiness zone 9