Organic Australian Seaweed Powder

Seaweed Powder – The Natural Powerhouse for Vigorous Plant Growth & Soil Health

Our premium Seaweed Powder is made from 100% Australian Bull Kelp (Durvillea potorum), sustainably harvested from the pristine, wild coastlines of King Island. Carefully dried and milled to preserve its natural bioactivity, this high-quality seaweed powder delivers powerful nutrition for healthier soil and stronger, more resilient plants.

Seaweed has long been recognised as one of nature’s most effective plant allies. Rich in trace minerals, amino acids, natural plant hormones and organic compounds, Bull Kelp seaweed supports balanced growth without forcing plants or depleting the soil. When applied to the garden, seaweed powder helps improve soil structure, increases microbial diversity, and enhances nutrient availability, creating the ideal environment for plants to thrive.

Regular use of seaweed strengthens root development, encourages vigorous leaf growth, and improves flowering and fruit set. It also boosts plants’ natural resistance to environmental stress, including heat, drought, frost and transplant shock. By supporting beneficial soil microbes, seaweed contributes to long-term soil fertility and healthier garden ecosystems.

Ideal for vegetables, fruit trees, ornamentals, lawns and indoor plants, this versatile seaweed powder can be applied as a soil amendment, compost activator or brewed into a liquid seaweed tea. Suitable for organic and regenerative growing systems, it’s a gentle yet effective way to nurture your garden naturally.

Seaweed Powder from Kai Kai Farm — sustainable, Australian-grown plant nutrition for thriving soil and resilient plants.