Hi Mike, A good tip with your compost is to mix 1 part of greens such as your plant residue & grass clippings (Nitrogen), with the same amount of brown material such as dried leaves, especially gum tree leaves & trigs (Carbon) mulched up in the mower, very important to have equal parts for a good balance, I rake up leaves & twigs around the parks & schools and around stormwater drains. Grass clippings & plant residue are great but full of nitrogen which will give you leafy caulis but no heads. Also, worm pee is very important, worm pee mixed with water @ 9:1 ratio & poured around the base of each plant every 3 weeks conditions the soil which releases the nutrients out of the soil for the roots to feed off, I start my worm pee after seedlings emerge in the seed trays, I keep my worm farm moist & I catch 1 litre a week, but next year I will be increasing that to 2 litres a week. I use my worm castings at planting time plus a side dressing every 2 months around my plants & use my worm pee as my tea. I have clay soil over here on the east coast and it took me years to get it friable but it paid off in the long run. Also, mulching around you plants is very important for moisture retention & worm activity, especially sandy soils. Dried gum leaves are so important in any soil as Carbon is a very important element for healthy growth. PS: Space your cabbages & Caulis & you will have great results. BR...….Steve

- Steve Donovan