Hydrofarm VI30131 2-Ounce Plant Vitamin & Hormone Supplement (12) 2 oz bottles SUPERthrive Unique Plant Vitamin and Hormone Contains Ready Made Carbon Hydrogen Oxygen Groups That Plants Would Otherwise Need To Wait To Make Use With Your Cutting Concentrate To Increase Your Success With Cuttings & Increase The Survival Rate Of Difficult Transplants Super Concentrated, Only Need To Use Just A Drop Per Gallon Of Water To Mix Made in USA