Seasol Seaweed Concentrate- Australia’s favourite plant tonic. Seasol is a seaweed extract concentrate that is diluted with water and usually applied by watering can. Seasol contains naturally occurring growth stimulants, potassium and trace elements. Seasol is a plant conditioner, not a nitrogen based fertilizer. It contains virtually no nitrogen or phosphorous and can be safely used on all plants, all year round. Seasol promotes vigorous flowering, fruiting, root growth and overall plant and soil health. It also increases resistance to disease and insect and fungal attack. Plants can take in Seasol through both the soil and their foliage. Remember don’t forget the Seasol!