I was going to suggest coir. I use it every year for sowing seeds, it has the advantage of being free from weed seeds, so I know that what's coming up is what I sowed.
@steephill Thank you! I understand that principle. Sorry, perhaps I wasn't clear in my question. I just didn't want to have an additional 6 weeks of slow-release fertiliser in the medium which seem to be the case for the potting mixes sold in my local nurseries. I'm learning how to build a healthy soil food web in containers with microbe teas and organic soil amendments.
In another post the OP had potted on a plant in MPC and added 3 different fertilisers at the same time, I’d like to know what plants they have that doesn’t need any at all.
I was going to suggest coir. I use it every year for sowing seeds, it has the advantage of being free from weed seeds, so I know that what's coming up is what I sowed.
Sounds really good, I'm gonna do some research on that. Always nice to learn new things!
Thank you all! Many helpful answers! And some unfriendly comments!? I thought this is a friendly forum where gardeners share advice and help each other. @Pete.8 that's exactly what I was looking for. I will have a look on their website. Thank you!
I was going to suggest coir. I use it every year for sowing seeds, it has the advantage of being free from weed seeds, so I know that what's coming up is what I sowed.
Sounds really good, I'm gonna do some research on that. Always nice to learn new things!
It's sold in compressed bricks which are very convenient to store, and when you want to use it, you put a brick in a bucket of water and leave it 30-60 minutes to soak it up and expand. If you're in a hurry, using warm water speeds it up a bit. Lots of mail order sites sell them; I buy mine either from the Organic Gardening Catalogue or Traidcraft. The OGC also sells sachets of nutrient granules meant to be added to coir, so you can use as much or as little as you like. When I mix mine up, I also add two handfuls of seaweed meal per brick, which is supposed to promote water retention. I use the neat coir plus nutrients for sowing seed, and for other potting purposes, a 50/50 mix of coir and garden soil.
I was going to suggest coir. I use it every year for sowing seeds, it has the advantage of being free from weed seeds, so I know that what's coming up is what I sowed.
Sounds really good, I'm gonna do some research on that. Always nice to learn new things!
It's sold in compressed bricks which are very convenient to store, and when you want to use it, you put a brick in a bucket of water and leave it 30-60 minutes to soak it up and expand. If you're in a hurry, using warm water speeds it up a bit. Lots of mail order sites sell them; I buy mine either from the Organic Gardening Catalogue or Traidcraft. The OGC also sells sachets of nutrient granules meant to be added to coir, so you can use as much or as little as you like. When I mix mine up, I also add two handfuls of seaweed meal per brick, which is supposed to promote water retention. I use the neat coir plus nutrients for sowing seed, and for other potting purposes, a 50/50 mix of coir and garden soil.
That's very detailed advice! Thank you, very much appreciated!
Posts
@Pete.8 that's exactly what I was looking for. I will have a look on their website. Thank you!