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Biobizz Alg-A-Mic Seaweed Biostimulant


The ultimate plant stress reliever and growth promoter.  Alg A Mic is a pure organic seaweed extract full of natural plant growth hormones and precious micro-nutrients

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What is it?

The ultimate plant stress reliever and growth promoter. Alg A Mic is a pure organic seaweed extract full of natural plant growth hormones and precious micro-nutrients. Hand-crafted in small batches from on a special type of kelp Ascophyllum nodosum, by using a cold pressing technique. This means that all the goodness found in this kelp product is not destroyed by using other traditional production methods such as heat, chemical digestion or dehydration. Ascophyllum nodosum is a pretty unique seaweed being the only species in the genus Ascophyllum and growing only in the cold waters of the northern Atlantic Ocean.


Why use it?

  • A foliar application of Alg A Mic coats the leaves with a soothing alginate (jelly-like substance). The polyamines in the kelp help to increase plant tolerance to abiotic stresses such as wind scorch and sun burn, whilst also helping the plant fight fungal and microbial attack (biotic stresses)
  • Alg A Mic stimulates photosynthesis and chlorophyll production, helping the plant maintain lush foliage (the food factory of the plant) and therefore efficient food production for healthy growth.
  • Alg A Mic promotes healthy roots leading to quicker plant establishment. This means higher yields and better quality; crucial if you are growing for cut foliage.
  • The relationship between plant growth, soil microflora (beneficial fungi and bacteria) and the seaweed Ascophyllum nodosum has been the subject of intensive study concluding that the seaweed is effective as a fertilizer, biostimulant and soil conditioner. When applied as a root drench on day 4 after planting your Euc with Rootgrow mycorrhizal fungi, the cytokinin in the seaweed extract helps the fungus colonize the tree roots, aiding faster establishment and a healthier tree.
  • It can be used on all manner of horticultural crops. We have been advised that there isn’t a cabbage plant grown commercially in the UK that has not been treated with a seaweed spray at planting out!

A bit for the Plant Geeks: Alg A Mic contains all manner of biochemical goodies: amino acids, carbohydrates, phlorotannins, polyamines, and vitamins. In combination with each other, these natural active compounds impact upon plants in different ways according to the age of the plant and its condition. The plant growth hormones found in this kelp are cytokinins, gibberellins and auxins and they are absorbed through the foliage. Auxin is sent down to the roots where, along with phlorotannins, it helps build a healthy root system.


Top tip! Unlike your Eucs which love full sun, do keep your bottles of seaweed in the dark. Sunlight will turn the green juice to brown juice


Useless fact: Seaweed has been used for human consumption, agriculture/horticulture and animal husbandry for 1000’s of years; the Romans used to feed it to their horses!

Additional information

Weight 0.5 kg
Dimensions 30 × 20 × 10 cm


How to Use

Shake well before use.

Alg A Mic is a highly concentrated product; measure with a non-food measuring cup or jug.


Watering Can – Use as a root drench.

Add concentrate to half the required volume of water then top up to full volume.

Apply with a watering can with fine rose to roots and leaves.

1-4 ml per litre of water. Repeat every 14 days from April through to September


Hand held Sprayer – Use as a foliar spray

1-3 ml in 1 litre water, or 5-10 ml in 5 litres of water. Spray as a very fine foggy mist over the foliage early morning or evening.  Repeat up to 4 times at 14 day intervals.

For further details see label.

Storage and Safety

Do not consume.

Child and Pet safe.

Do not mix with copper-based fungicides.

Store in a cool, dark, dry, secure location between 0-30 degrees C.

Use within 12 months of delivery or by use-by date.


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