Seaweed should be the best weed you can use in the garden. As a soil conditioner it has been used in Ireland for many years bulking up earth on thin limestone soils. It is organic and can be added to compost heaps but let rain wash out excess salt first. In Europe seaweed is used, mixed in layers with sand and soil, for growing Potatoes and Artichokes. Unless you live very close to the sea you are unlikely to have access to large quantities so you may use a liquid concentrate.
Concentrated Seaweed is used at high dilution rates. It is reputed to help plants avoid stress and resist frost. The natural hormones in Seaweed help plant growth and strong root systems. The seaweed extract helps the take up of trace elements.
Tips
- Use a very dilute solution of SM3 seaweed extract as a foliar feed.
- Seaweed retains water and is slow to decompose so use as a winter mulch.
- Use it on vegetables and see if your crop yield is better
- Read more in Anne’s Garden blog
how will seaweed help grape vines, if it will at all
I use seaweed extract occasionally for general plant health. It contains trace elements and natural seaweed helps humus.