Canna Flush is a product used to clean plants and substrates from any excess nutrients. Flushing your system or pots of soil before harvest makes sure the plants get rid of all excess nutrients, which will lead to a clean and tasteful crop. Canna Flush is a great way to correct the effects of over-fertilisation. Substrates should be cleared of excess nutrients because these can have a bad influence on your next growth, leading perhaps to either over-feeding or malnutrition. Canna Flush effectively cleans the substrate without killing any useful bacteria or beneficial fungi.
To use Canna Flush to flush excess nutrients from drainable substrates following these guidelines from Canna: Soil or Soil-less mixes: Dilute 2 ml concentrate per 1 litre of water until you have drain. Water plants once with plain tap water according to normal watering frequency until you have drain. Then resume normal feeding schedule.
Hydroponics (open systems): Administer the diluted Canna Flush 4ml per 1 litre water the last feed of the day until there is 10-20% drain. Water plants once with plain tap water until you have drain. Available from Straight Up Hydroponics in a 1 litre bottle.
Start administering according to normal feeding schedule (with 10-20% drain) the following day. Before harvest (annual crops only): Start one to two weeks before harvest and apply at above rates and in the above fashion once a week. Continue through harvest on a normal feeding schedule.
Re-using inert substrates: Canna Flush is ideal for cleaning inert substrates (like clay pebbles). Add diluted 4 ml per litre tap water. Soak for 24 hours then rinse with same amount of tap water. Repeat if necessary.
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