Peters Professional - Grow-Mix 21-7-22

Peters Professional fertilizers are the world’s leading fully water-soluble fertilizers. Encourage your plants to reach new heights with Peters® Professional Grow-Mix (21-7-22+3MgO+TE). By feeding them this low-phosphate formula, with its perfectly balanced N:K ratio, you are sure to stimulate your plant’s growth. Thanks to its high levels of nitrogen-rich urea, you’ll see beautiful results in your potted plants, such as orchids. The perfect mix for growing your potted plants, revenues, and returns. Full product description can be found here.

The unique M-77 chelating formula gives you fast and easy nutrient and trace element uptake. It ‘unlocks’ the rooting area, so you get greater, more effective nutrient absorption than ever before.


  • Fully water-soluble small granules for easy dissolving
  • Made from a pure formulation with no added ballast substances
  • Developed for potted plants, bedding plants, container nursery stock, and other peat-based cultures
  • NPK including Magnesium and TE (trace elements)
  • Fast plant reaction


Composition: 21-7-22+3MgO+TE
EC: 0.8

Application rates

  • Continuous feeding: 0.5 - 1.5 g/liter
  • Occasional feeding: For example, once a week - 0.8 – 2 g/liter

ATTENTION! Trial first on a small scale before changing the rate, application, or any other variables. Start with the lowest dosage to avoid overfertilization, and build up from there.

How to use:

  1. It’s best to prepare your solution 1-2 hours before use, stir well or use warm water to make sure it dissolves completely.
  2. Do not mix this product with Peters® Excel.
  3. Store under dry conditions.

Sale price€3,50
Size: 250 g