Helianthus annuus 'Sonja' Sonja Sunflower

Abstract

This document provides an overview of the ‘Sonja’ sunflower (Helianthus annuus ‘Sonja’), a short-lived annual plant known for its large, striking flowers. It details the plant’s characteristics, including its height, spread, and flower size, as well as its growing conditions and pest resistance. The document also compares ‘Sonja’ with other sunflower cultivars like ‘Valentine’, ‘Floristan’, and ‘Hallo’, highlighting their differences in appearance and susceptibility to pests. Additionally, it offers practical information on planting and maintaining sunflowers in Florida, emphasizing their seasonal growth patterns and potential uses in landscaping. Original publication date October 1999.

Keywords

• Asteraceae