ProCone® is a plant growth regulator formulation containing gibberellins GA4 + 7 that is utilized to promote pollen and seed cone (strobilus) production for tree improvement programs and operational seed orchards. ProCone can be used on mature trees, seedlings, and grafted or rooted propagules of most conifer species of the family Pinaceae.

Currently registered for sale in the following US states: Alabama, Arizona, California, Florida, Georgia, Idaho, Maine, Michigan, Minnesota, Mississippi, North Carolina, New York, Oregon, Pennsylvania, South Carolina, Tennessee, Texas, Virginia, Washington, Wisconsin, and West Virginia.

Crop Categories:

  • Tree Nurseries
  • Conifer Seed Orchards (excl. Genus Pinyon (pine nuts))
  • Christmas Tree Seed/Cone Production


  • Stimulates the formation of seed cones (when applied at target timing)
  • Stimulates the formation of pollen cones (when applied at target timing)

Packaging Options:

  • 1 Pint Bottles (sold individually)