Seaweed is one of those materials that tempts gardeners into overclaiming. It can be food, a compost ingredient, mulch, a commercial plant product, and a coastal curiosity. It is also a marine organism that can concentrate iodine, salts, and contaminants from its surroundings. The useful approach is not to treat seaweed as magic. It is to decide what material you…
Seaweed farming sounds like gardening turned sideways. There are seedlings, lines, seasons, pests, harvest windows, and a constant negotiation with weather. But it is not simply underwater vegetable gardening. The farmer is working in public water, with currents, permits, navigation, marine life, and a crop that has no roots in soil. The last point is more than a botanical curiosity.…
The phrase seaweed gardening can be misleading. It suggests a tray on a windowsill, a bucket of seawater, or a tidy underwater bed that behaves like lettuce. Real seaweed belongs first to the coast. It lives in tides, light gradients, currents, salinity, temperature, and marine food webs. To understand it as a gardener, begin there. Seaweeds are marine macroalgae rather…
