Green thumbs, check out Sustainable Gardening Australia for tips on creating healthy soils and propagation tips. Get your garden beds ready because there will be herbs and seedlings for sale at the winter fair!
Carol was a great help this week with her help with seed collecting and cataloguing, download on biodynamic treatments and a great recipe for making soil for raising seeds:
1 part goat poo – food for young plants
1 part pine bark – to aerate the mix, can be seived off Brenton’s mix
1 part sand – to aerate
1 part small rocks – to aerate
1 part clay soil – for water holding capacity
This mix is aiming for about 30% porosity to optimise the soil for seeds to germinate.
sounds good, though I have put some seeds in different parts of my garden, in soils very different (heavy clay with gravel and pony poo) (well mulched gravelly soil) ( straight sandy clay) (potting mix) The only seed to emerge so far has been in the potting mix. Do you think I should wait to see if the others come up when the soil gets warmer, or find them and put them all in bought potting mix until they are bigger?
I’d leave those seeds in – it’s an interesting trial but it’s probably worth growing most other seeds in punnets or plugs where you can manage and monitor the conditions and then when they get 4 leaves, gently transplant to tubes to avoid bent roots.
It’s worth having a chat Gangsta Greenthumb for some of his techniques with transplanting… we’ll see if he’ll part with some of his secrets!
Hi there, I was just visiting Copley, South Australia, and checking out the home gardens and was amazed at the healthy growth and diversity of fruit trees, veges and native plants that have only just been planted in the past year or two. We were looking at growing some seedlings for the upcoming local ‘fair’. Commercial ‘seed propagation’ mix is someone else’s recipe for a growing media which; works, and makes them money. My idea was to come up with another recipe that; works, and doesn’t cost as much.
To work, the seed propagation mix must provide what the seed needs to germinate. Assuming that the seeds are physiologically ready to germination, seeds (mostly) need; some moisture which makes them swell and start to grow, and air spaces around them so that they can have gaseous exchange (they give off gases, and uptake gases), and support so that the root can freely grow down and the shoot can freely grow up. The amount of air available can often be a limiting factor to rapid growth. Rapid growth is important because the seedling must quickly get big enough to start photosynthesising effectively. My recipe which we made up from materials on-site is a trial only. I suspect that it is too dense, that is, not enough air. I read a great book on designing growing media, called ‘Growing Media’. I’ll see if i can find it for you. Fascinating reading. Have fun in your gardens.
[…] time to get your spring seeds in. For some tips on seed raising soil, hop into the discussion on sustainable gardening, and check out Diggers and Eden Seeds for a huge variety seeds, including traditional and […]