Learn About Sunflowers

Grower’s Library article guide Choosing Sunflower Varieties | Single-Stem, Branching, Pollenless or "Regular"? Choosing cut-flower sunflowers: single-stem vs. branching types, the pros and cons of each, and recommended varieties for color, form, season and vase life. Open resource →

Grower’s Library technical document Single-Stem Sunflower (Helianthus annuus) Production | Tech Sheet (PDF) Follow the instructions in this Tech Sheet for successful production of single-stem sunflowers. Detailed recommendations are provided for variety selection, site selection, governing bloom size, sowing, germination, transplanting,... Open resource →

Grower’s Library key growing information How to Grow Perennial Sunflowers From Seed How to grow perennial sunflowers from seed: starting transplants, direct sowing in warm soil, soil, spacing and dividing, cutting stage and uses. Open resource →

Grower’s Library spreadsheet download Jang Jp Seeder Roller Trial Results Sunflower Varieties Cross Reference Chart Open resource →

Grower’s Library key growing information Growing Branching Sunflowers From Seed How to grow branching sunflowers for cutting: sowing direct or in cells, pinching for longer stems, succession sowing, spacing, soil and harvest stage. Open resource →

Grower’s Library article guide 3 Easy and Productive Cut Flowers: Sunflowers, Zinnias & Rudbeckia Three easy, dependable cut flowers for gardeners and market growers: sunflowers, zinnias and rudbeckia, with bloom times, harvest cues and vase life. Open resource →

Grower’s Library chart comparison 3 Sunflower Succession-Planting Programs Three ways to succession-plant sunflowers for a season-long harvest, with example schedules. Open resource →

Grower’s Library key growing information How to Grow Tall (Single Stem) Sunflowers How to grow tall single-stem sunflowers for cutting: direct sowing or early transplants, no pinching, succession sowing, harvest stages, soil, spacing and day length. Open resource →

Grower’s Library chart comparison Pollenless, Single-Stem Sunflower Varieties | Comparison Chart (PDF) A full-color, downloadable/printable PDF version of our Pollenless, Single-Stem Sunflower Varieties Comparison Chart. Open resource →

Grower’s Library key growing information How to Grow Dwarf Sunflowers From Seed How to grow dwarf sunflowers from seed: direct sowing or pots, temperatures for compact plants, spacing, soil, cutting and drying. Open resource →

Grower’s Library technical document Guide to Edible Flowers An illustrated reference to edible flower bloom size, flavor profile, suggested uses, and variety recommendations from flower research and trialing team. Open resource →

Grower’s Library chart comparison Branching Sunflower Varieties | Comparison Chart (PDF) A full-color, downloadable/printable PDF version of our Branching Sunflower Varieties Comparison Chart. Open resource →