Maxicrop 140251 500ml Seaweed Plus Sequestered Iron

This is what you need to revive ericaceous plants that have yellowing leaves, such as camellias or rhododendrons that have been in soil that is too alkaline. Easy to apply by diluting and pouring over the root area. You might have to reapply if the soil remains alkaline but it does help the plant's deficiencies.

Excellent furtiliser

Good product. Not used it long enough yet to give it 5stars

This bottle will last you forever! Extremely low PH and obviously high EC. I do also get salt traces that maybe might be a mixing agent within the product

Been using this for yonks. First discovered it when we moved to a house where the garden soil was alkaline. It was in the days when you could literally buy bails of peat, and potting compost was mostly peat based. Aye, them were t'days. Anyhoo, no matter how much peat we dug in, azaleas, rhododendrons, gardenias and hydrangeas etc all struggled, leaves yellowed and dropped. Then we started watering with this elixir, and all was well. It boosts growth and root development, has that comfy potting shed aroma, seems to last well between waterings and, appearance wise, it's black so isn't likely to be drunk...unless you're a Guinness or Dandelion and Burdock fan. The 1L size lasts for ages, so it's value for money imo.