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.
Helianthus giganteus for sale – Seeds or Plants to Buy VIDEO 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 Spring / Summer Planting season: Snail, slugs Pests and diseases: 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 Average amount of water / Big amount of water Water requirement: Light conditions in optimal condition for growing: Full Sun No Is it possible to grow indoor as houseplant? Growing is also possible in a planter /flowerpot / containers: Yes Blooming information Spring / Summer / Autumn Bloom season: General information about the flower: Flower color yellow with darker in the middle, flowers in daisy shapes. Scientific name:
Blooming Seasons Autumn flowers Spring flowers Summer flowers Flower colors 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 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