Fuente: WIPO "tomato" A Helianthus plant designated ‘HEIZ0003’ is disclosed. Embodiments include seeds of Helianthus ‘HEIZ0003’, plants of Helianthus ‘HEIZ0003’, to plant parts of Helianthus ‘HEIZ0003’, and methods for producing a Helianthus plant produced by crossing Helianthus ‘HEIZ0003’ with itself or with another Helianthus variety. Embodiments include methods for producing a Helianthus plant containing in its genetic material one or more genes or transgenes and transgenic Helianthus plants and plant parts produced by those methods. Embodiments also relate to Helianthus varieties, breeding varieties, plant parts, and cells derived from Helianthus ‘HEIZ0003’, methods for producing other Helianthus lines or plant parts derived from Helianthus ‘HEIZ0003’, and the Helianthus plants, varieties, and their parts derived from use of those methods. Embodiments further include hybrid Helianthus seeds, plants, and plant parts produced by crossing Helianthus ‘HEIZ0003’ with another Helianthus variety.