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What to Plant - August

What to Plant - August

Published by Andrew Clark on 1st Aug 2025

August is a fabulous month as the signs of spring begin to come to life. The landscape glows with the gold of wattles in bloom. Spring flowering bulbs push through the cool winter soil, and trees that enjoyed a winter rest are now showing signs of bursting into new life and color.

As the soil temperature warms up, it is time to sow fresh seeds of Carrot, Parsnip and Beetroots. Cover with seed raising mix to 2 or 3 times the thickness of the seed to improve germination. You can now plant seedlings of Spinach, Silverbeet, Spring Onions, Leeks and Onions and early crops of Brussels sprouts, Cabbage, Cauliflower and Broccoli. 

Peas can also be sown from seed keeping in mind they love a soil which has been limed and enriched with organic matter. Dig your trench about 30-40 cm deep adding a few handfuls of blood and bone along with a generous application of lime. 

Peas require loose and airy soil that drains well and really need a full sun position 6-8 hours of direct sunlight everyday) so be sure to choose an appropriate location or create a raised garden bed for extra drainage.

Our quality certified seed potatoes are now available, with some varieties that are well known and some more unusual gourmet types. Now is the time to plant this wonderfully versatile root vegetable.

It’s potato season, and we’re excited to offer a wide range of top-quality certified seed potatoes for the 2025 growing season — now available at Harmony. Whether you're a home gardener, foodie grower, or just keen to get your hands in the soil, we've got something special waiting for you.

All varieties are packed in eco-friendly brown paper bags to reduce sweating and plastic waste — a small change that aligns with our values and helps keep your seed in peak condition.

Sapphire (Limited Stocks)
A real showstopper! With striking purple skin and flesh, Sapphire is high in antioxidants and perfect for roasting, mashing, or simply adding colour to your plate.

Pink Fir Apple
A gourmet favourite! Long, knobbly tubers with a nutty, earthy flavour. Perfect for warm potato salads and roasting.

Kennebec 
One of the best all-rounders. Creamy white flesh with good disease resistance. Great for chips, mash, and everything in between.

Carlingford 
Waxy and compact. A smaller grower that’s perfect for raised beds or pots. Excellent boiled or in salads.

Nicola 
Smooth yellow flesh with a creamy texture. Keeps well and shines in salads, steaming, and light roasts.

King Edward
A British heirloom variety with white flesh and blushed skin. An exceptional roasting potato with a floury texture.

Dutch Cream
Rich, buttery, and beloved in Tasmanian kitchens. Smooth skin and golden flesh make it ideal for mashing, roasting, and creamy soups.

Tasmanian Pink Eye
The iconic local! Famous for its earthy flavour, waxy flesh, and pink “eyes”. Best steamed or baked whole with skin on.

Bintje
A European favourite. Creamy, smooth, and incredibly versatile. Great for frying, mashing, or salads.

Banana
A heritage fingerling with long, slender tubers and a sweet, nutty flavour. A true gourmet variety perfect for roasting.

  • Treat stonefruit for leaf curl- Timing is curcial and refer to our blog
  • Prepare heavy soils - Use gypsum or Powerfeed to increase drainage in clay soil
  • Summer flowering Dahlia,Peony rose, Lillium and Lily of the valley have arrived and can be planted now
  • Codling Moths - Set codling moth traps and replace old ones with refill as apples and pears start to flow
  • Lawn Care - Lawn grub numbers will be starting to ramp up feeding on your lawn creating brown patches and unhealthy green grass, treat with Yates Complete Insect Control , this insecticide works on contact to kill surface pests in addition to working systemically to absorb into grass and roots to kill pests in the soil. The unique formula provides continuing season long protection against pests
  • Plants which have overwintered in the ground can now be lifted and split, tidied up and replanted into freshly dug soil.
  • Add compost and manure to garden beds to prepare for spring growth.
  • A dressing of lime can also be added now, especially in vegetable gardens. This gives the lime time to react before adding other fertiliser in the spring.
  • If you haven’t completed your rose pruning, it is not too late but try to have it done as soon as possible this month.