How to grow Helianthus giganteus

Helianthus giganteus grow and care – herbaceous of the genus Helianthus also known as Giant sunflower or Tall sunflower, Helianthus giganteus perennial but in cold climate grows as annual, as perennial grow evergreen in cold area become deciduous plant also used as ornamental plant and attract pollinators, grow in tropic, mediterranean, subtropical, desert or temperate climate and growing in hardiness zone 4+.

Leaves green in rhomboid shape with serrated margins.

Helianthus giganteus flower

Flower color yellow with darker in the middle, flowers in daisy shapes.

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How to grow Helianthus giganteus growing and care:

Mulch, well drain soil

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

Is it necessary to use vegetative reproduction?
No, but it easy

Difficulties or problems when growing:
Aggressive

Planting season:
Spring / Summer

Pests and diseases:
Snail, slugs

Pruning season:
All season

How to prune:
No need

Size of the plant?
1-3 m, 40-120 inches

Growth speed in optimal condition:
Fast growing

Water requirement:
Average amount of water / Big 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 / Autumn

General information about the flower:
Flower color yellow with darker in the middle, flowers in daisy shapes.

Scientific name:

Helianthus giganteus

How to grow Helianthus giganteus

Growing Helianthus giganteus

Helianthus giganteus plant care

Helianthus giganteus

רשימת קטגוריות

Blooming Seasons
  • Autumn flowers
  • Spring flowers
  • Summer flowers
Flower colors
  • Yellow flower
Climate
  • Desert Climate
  • Mediterranean Climate
  • Subtropics Climate
  • Temperate Climate
  • Tropics Climate
Ornamental parts
  • Ornamental flower
  • Ornamental leaves
  • Ornamental plant
Plant growing speed
  • Average growing plants
  • Fast growing plants
Plant life-form
  • Annual plant
  • Deciduous
  • Evergreen
  • Herbaceous
  • Perennial plant
Plant Uses
  • Attract pollinators
  • Floristry
  • Ornamental plants
Planting Season
  • Spring Planting
  • Summer planting
Plants sun exposure
  • Full sun Plants
Watering plants
  • Big amount of water
  • Regularly water
Hardiness zone
  • Hardiness zone 10
  • Hardiness zone 11
  • Hardiness zone 12
  • Hardiness zone 13
  • Hardiness zone 4
  • Hardiness zone 5
  • Hardiness zone 6
  • Hardiness zone 7
  • Hardiness zone 8
  • Hardiness zone 9