Miniscule carrot seeds have to be sown directly into the soil and the plantlets painstakingly thinned out since they don't tolerate transplanting. By the end of the month you'll be transplanting a wonderful array of other vegetable seedlings into your prepared patch. Extra vigilance is necessary to deter the ravenous slug and snail population, whether that's with beer traps, bait tubes, scattered pet friendly Quash pellets, or even for nightly 'stalk-and-pick' sessions with your torch.
Incidentally, this is a good thyme-planting month. This low-mounding aromatic herb suits being tucked between paving slabs as edging on pathways as well as alongside other herbs.
Flowers
Get some of those favourite summer annual and biannual seedlings on the go.... sunflowers, poppies, aster, lobelias, alyssum, salvia, cosmos, honesty, zinnias, chrysanthamums and penstomen among many. August is a good time to divide large clumps of perennials like day lilies, plant summer flowering bulbs like gladioli and add lime to flowerbeds especially around delphinium and dianthus.
Shrubs and Climbers
If you haven't tackled it already, this is the last chance to prune hydrangea back to two strong buds. Cut back abutalon, tibouchina and buddleia and tie in your climbers like clematis. Evergreens can be clipped but leave spring flowering shrubs until after they have flowered. Protect delicate frangipani with frost cloth in case of late frost and spray camellias with white oil to kill scale and wintering insect eggs.
Lawns
Established lawns now need less-frequent mowing - just a light high cut because grass growth has slowed and it's a recommended time to aerate with a garden fork if the ground is waterlogged. Most lawns will appreciate a good winter feed. If you're getting ready to create a new lawn, make sure the area is well prepared, rolled and level for sowing grass seed or laying turf in early spring.