Gardening Calendar

Browse our monthly calendar for advice on what to plant, prune, and feed each month. 

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Gardening calendar May 2024

May is a good month to plant almost any evergreen shrub, tree, ground cover or perennial while there is still warmth in the soil and rain to provide moisture. Through winter these plants usually grow an extensive root system which makes a launching pad for rapid spring growth a few months down the track. The only planting category that is best avoided at this time of the year is the tropicals.

Planting

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Soil

  • Enrich soil before planting with Bailey Soil Improver Plus or Baileys Soil Matters Clay & Compost. Designed for sandy soils, Clay & Compost permanently improves nutrient and water holding capacity by combining quality organic compost, aged chicken manure, rock minerals and kaoline clay. This will help your new editions establish well before the cooler months.

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Flowers & Ornaments

  • Plant Hyacinths and Tulips in tubs and pots for spring flowering. Enrich the soil with Baileys Soil Improver or if you have very sandy soils, use Baileys Clay & Compost. Bulbs also do very well in pots or planters, use a top-quality potting mix such as Baileys Premium Potting Mix. For more info read our blog - Planting Bulbs in WA. 

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Vegetable & Herbs

  • Potatoes can be planted now that reliable rain can take over from hand watering. Potatoes like fertile, friable, moist, slightly acidic soil (pH of approx. 6).  Prepare the ground by digging in compost and manure three weeks before planting. Use Baileys Soil Improver Plus, it contains mature compost and aged chicken manure. For more info read our blog - How to Grow Potatoes in WA. 
  • This is a great time to plant the onion tribe. Onions, chives, shallots, leeks and garlic all thrive in cool winter conditions.
  • It's not too late to sow broad beans. Remember young foliage as well as flowers can be eaten, both have lovely subtle flavour. 

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Fruits

  • Early winter is a great time to plant strawberries now the weather is cool, rains reliable, and plants have a chance to established before spring arrives. 
    They will grow happily in a variety of containers and planters, horizontally, vertically, or even upside down from hanging baskets. Plant directly into quality potting mix made to Australian Standards, such as Baileys Premium Potting Mix or Veg & Herb Planting Mix.  For more info read our blog - Time to Plant Strawberries in WA. 

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Pot Plants

  • Now is a great time to pot up some indoor plants. Heading into winter sunlight may not be as reliable and 'rainforest plants' are a good choice - they've evolved with large, glossy leaves to grab as much light as possible. Monstera Deliciosa, aka Swiss Cheese Plant, Fruit Salad or Elephant Ears doesn't need a whole lot of sun and grows really well in dim light. Pot in new Baileys Indoor Premium Potting Mix.

Feeding

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Edibles

  • Baileys Soil Matters Garden is an organic-based, broad-spectrum plant food which can be applied across the entire garden and veggie patch. It's microbial coating is designed to stimulates healthy population of native soil biology and improve nutrient uptake. 

Pruning, Maintenance & Harvest

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Flowers & Ornaments

  • Now is a great time to prune; reducing the canopy now means that, come winter, the rain can get to the roots easier. It also reduces the chance of storm damage. As soon as any of your deciduous shrubs and trees have dropped their leaves it's time to start your winter pruning.
  • If you didn't in April then pruning your roses back now will mean you get one more flush of flower in June.
  • Prune summer-flowering perennials such as salvias, buddleia and daisies.
  • Prune Hydrangea stem above two plump buds and remove old branches at ground level.

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Native Plants


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Vegetables & Herbs

  • If your brassicas suffered from clubroot last season treat beds with 10cm layer of good quality compost such as Baileys Soil Improver Plus and a sprinkling of garden lime.
  • May is a great time to make new plants from cuttings. Just take a 10cm cutting from hardwood herbs such as bay and rosemary, remove the lower leaves, dip cuttings into rooting gel or honey and plant in small containers of Baileys Premium Potting Mix. Keep the cuttings slightly moist and shelter from strong sun and wind.
  • Brussel sprouts can easily get top heavy as the crops develop. To prevent them toppling over, support them with tomato stakes.
  • Lift and divide rhubarb if the stems are getting progressively thinner. Replanting these can give your plant a new lease of life resulting in thick flavoursome stalks.

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Trees & Shrubs


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Pot Plants

  • Watch the amount of water you're giving your indoor plants now, test the soil first with your finger to see if they're thirsty.

Lawn Care

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  • May is the last month to apply a granular fertiliser to lawns before winter. This will encourages prolonged growth to ensure a thick coverage and extended colour and help prevent weeds from taking hold while your lawns growth rate slows. Use Baileys 3.1.1. Plus or Energy Turf.
  • Foliar application with a liquid fertiliser is more effective in cooler months when the transfer of nutrients from soil to plant slows down. To maintain that professional colour and finish, apply Baileys Turfect Invigorate as the temperate drops and throughout winter every 4 weeks. TURFECT Invigorate provides a broad spectrum, readily available source of essential macro and micro nutrients and is particularly high in Potassium. The nutritional makeup, plus added kelp, humic acid and Biowish beneficial biology optimise root growth and soil health. This in turn improves water and nutrient uptake, turf growth and vigour.
  • Compaction can be a bit of a problem heading into the cooler months particularly in high wear areas or from wet weather. Try to avoid traffic on your lawn or regularly aerate to help loosen the soil.  
  • Winter weeds in lawns such as Jo Jo and annual winter grass begin germinating this month and a spray now will hit them at their most vulnerable stage.

Pest Control

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Flowers & Shrubs

  • Roses need watching at this time of year for fungal problems of black spot rust and powdery mildew. Avoid watering over the foliage as this can encourage the spread of these diseases.

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Fruits

  • Spray peaches, nectarines, apricots and plum trees with copper based fungicides to combat shot hole and peach leaf curl diseases.

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Vegetables & Herbs

  • Watch out for slugs, snails, aphids, whitefly, cabbage moth and associated caterpillars in the vegie patch. The best method is always prevention and if you don't have a problem, act quick to secure your garden with a finely woven net immediately. Exclusion netting is a great way to keep most pests at bay. 
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