Seaweed extract works best when applied regularly at low doses rather than heavily and infrequently. The hormones and trace minerals it provides are most effective when they are consistently available to the plant throughout the growing cycle.
During the main growing season (March through October in North India), apply seaweed as a foliar spray every 2–3 weeks. This provides a steady supply of cytokinins that promote cell division and leaf expansion, resulting in faster, stronger vegetative growth.
Best time to spray: Early morning or evening. Never in direct afternoon sun — the solution will evaporate before absorption and can concentrate on leaf surfaces, causing burn.
Alongside foliar applications, do a soil drench once a month. This feeds the microbial community in the root zone and ensures the hormonal benefits reach the root system directly. Particularly important for containerised plants where soil biology is limited.
Increase foliar application frequency to once a week for two weeks before expected flowering. The cytokinins in seaweed support bud initiation and can significantly increase flower count and quality. This is one of the highest-impact uses of seaweed extract.
Apply daily for the first 3–5 days after transplanting, then return to the regular schedule. The concentrated hormone support during establishment dramatically reduces transplant shock and accelerates root growth into new soil.
When plants slow down in winter, reduce seaweed applications to once a month or stop entirely. There is little benefit in applying growth hormones when a plant is dormant. Resume regular applications as new growth begins in late February or March.