How to grow…Sunflowers

The seeds we purchased are the Early Russian Sunflower.

  • Direct seed outdoors after all danger of frost is past. (Dwarf varieties can be seeded inside in peat pots 3 weeks before planting out.)
  • Sow 1” deep in light, well-drained soil.
  • Keep moist until seed germinates in 10-14 days.
  • Space in a full sun location 6-24” apart depending on variety.
  • Giant varieties should be planted 20-24” apart, while cut flower varieties should be spaced 6-10” apart to get smaller heads and slender stems for bouquets.
  • Water regularly but do not over fertilize.
  • Cut flowers last 10-14 days.
  • Drying sunflower heads: If drying outside they should be protected with plastic mesh or brown paper bags.
  • Just cover the heads to keep the birds away.
  • To harvest, cut the seed heads leaving 12” of stem attached.
  • Hang in an airy place safe from birds and rodents.
  • Heads should be dry in 2-3 weeks.
  • Remove seeds by rubbing two heads together.
  • You may store the seeds on the heads until you need them.