Carbon Gold BioChar Composts

This Soil Association approved GroChar  All Purpose Compost is the growing medium all seeds and gardeners alike have been waiting for; packed full of beneficial - and completely organic - nutrients, the compost will get your crops off to the strongest possible start
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Delivery: £4.95 P&P
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Price: From £9.95
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This Soil Association approved GroChar Biochar Seed Compost is the growing medium all seeds and gardeners alike have been waiting for; packed full of beneficial - and completely organic - nutrients, the seed compost will get seeds off to the strongest possible start.

The Carbon Gold GroChar seed compost additive list makes impressive reading; added to mycorrhizal fungi and wormcasts is Carbon Gold biochar, seaweed, organic coir and a vegetable-based nutrient blend, all of which work together to help ensure high germination rates and healthy early root formation.

You'll also find that seeds and seedlings raised in Carbon Gold Biochar Seed Compost ‘take’ quickly when potted on or planted out so grab yourself an 8 litre bag of this potent seed sowing mix and enjoy the garden benefits!


  • Carbon Gold Biochar Seed Compost is Soil Association approved
  • Supplied in 8 litre bags
  • Carbon Gold Biochar All Purpose Compost is Soil Association aooroved
  • Supplied in 20 litre bags
  • Contains a mix of mycorrhizal fungi, wormcasts, Carbon Gold biochar, seaweed, organic coir and a vegetable-based nutrient blend
  • Provides the perfect growing medium for seed germination and unrivalled growth in seedlings
  • Seeds boast a higher germination rate and healthy root formation
  • Seedlings will adapt better to transplanting
  • GroChar All-Purpose Compost is ideal for transplanting seedlings, container pots, hanging baskets and indoor plants.
  • Includes biochar which takes carbon out of the carbon cycle and promotes plant growth through increasing soil fertility
  • Completely organic

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Number of reviews: 4
Very happy with this product By Anonymous 5 6th April 2015

This is the first year I've tried this and conducting my own experiments with an assortment of seed sowing. The other medium I'm using is Westlands Growsure which is also organic. The Carbon Gold has had far better and faster germination results. In the case of broad beans 100%, compared with 75% of the Westlands. I also mixed the two together (to see if it would stretch the cost) and had 75% germination, so looks like CG is the one to use. The tomatoes and peppers are much stronger and all the plants look so much healthier. So I will be using this compost next year. Only 2 disappointing results and considering I'm using a variety of mediums I have come to the conclusion that it is the actual seed that is at fault - one is lettuce and the other spinach with exceedingly poor germination. As for the John Innes seed sowing medium - I have decided that is only good for chicken dust baths!

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Brilliant mulch! By Faith Ramsay 5 2nd February 2015

The best mulch I have used for suppressing weeds and with the added bonus that it is a very good slug deterrent and also seems to help keep down the damage caused by rabbits and pheasants too!

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Bio char seed compost...Update! By Francesca Allaby 5 25th April 2014

I have now been using this compost for a couple of months or so and I am impressed. The compost is light and friable but holds moisture well. Other general purpose peat free composts have dried out and been hard to rehydrate, as well as being too bulky for use with seeds. Friends have commented on how healthy my tomato seedlings look, and my peppers and sweet peas seem to like it too. I have many more seeds to sow but I am back for more of this. I just wish it came in bigger bags, and from that point of view it is more expensive but so far worth it.

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Carbon Gold’s GroChar is a range of Soil Association approved composts, fertiliser and soil improver containing enriched biochar. They help to retain moisture, increase nutrient availability and create resilient, healthier plants.

Our tree care range blends are proven to significantly reduce losses and improve the vitality of transplanted and established trees. Ideal for decompacting and amending waterlogged soils, and stabilising soil moisture in sandy soils, enriched biochar allows trees to grow strong, healthy root systems in the harshest conditions.

Carbon Gold’s peat free biochar products are used by professional growers, allotments and home gardeners because they deliver superb results.



Improves soil health, nutrition & structure and reduces watering


Maximises nutrient and water uptake; reduce transplant shock


Rich in trace minerals for plant health


Full of beneficial bacteria crucial to healthy root systems

What The Press Say

Number of Articles: 1
Grow Your OwnMarch 2014

Propagation Best Buys

GroChar composts are soil association approved, peat-free and enhanced with biochar, mycorrhizal fungi, seaweed and wormcasts. This means that the products deliver exceptional germination rates, impressive root growth, and very good water retention. Biochar is a porous, high-carbon form of charcoal used to improve soil nutrition and structure. It is essential for stronger, healthier, more disease resilient plants.

Number of Articles: 1
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