How to Use Gibberellic Acid on Plants


Give your plants a boost by applying a natural growth hormone to them during stressful times. Gibberellic acid acts on plants to speed the rate at which seeds germinate and the plant matures, according to the California Rare Fruit Growers. Using this hormone on your plants in the proper amounts can help to keep you plants healthy and overcome issues such as a lack of blossoms or too few fruits.

Step 1

Combine 125 mg of gibberellic acid with 2½ cups of water in a sprayer to create a solution of 200 parts per million. Spray this solution to young plants which have not produced enough flowers.

Step 2

Mix two-thirds a cup of water with 125 mg of gibberellic acid, and spray on plants to promote blossom setting and increased fruiting.

Step 3

Apply a combination of 125 mg gibberellic acid with a quarter-cup of water directly to seeds to increase the rate of germination.

Step 4

Promote growth of cut surfaces of branches by rubbing 125 mg of gibberellic acid mixed with 1 tsp. lanolin directly to the cut edge.

Things You'll Need

  • 125 mg gibberellic acid powder
  • Up to 2½ cups water
  • Sprayer
  • 1 teaspoon lanolin


  • EPA: Fact Sheet Gibberellic Acid
  • California Rare Fruit Growers: Gibberellic Acid for Fruit Set and Germination
Keywords: gibberellic acid, growth hormone, plant stimulant

About this Author

Athena Hessong began her freelance writing career in 2004. She draws upon experiences and knowledge gained from teaching all high school subjects for seven years. Hessong earned a Bachelor's in Arts in history from the University of Houston and is a current member of the Society of Professional Journalists.