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May gardening guide | Western Cape | Stodels Garden Centre

May 2019
Western Cape



We’re all wishing for another winter of good rains! While you wait, get your garden ready for the cooler months ahead by sowing our list of winter vegetables, feeding your lawn, pruning plants and treating common garden pests.

Spotlight on: Gift ideas for Mother’s Day
Want to honour your mom this Mother’s Day with a thoughtful gift to let her know how much she means to you? Help her cultivate a green space with a few gardening gift ideas: Read our blog post for many more garden-friendly gift ideas, or visit our Online Shop to browse our range of elegant pot-and-plant combinations or practical garden tools.

ON YOUR TO-DO LIST FOR MAY

Plant & Sow
  • Plant drought-tolerant varieties such as bougainvillea, wild iris, yellow wild iris, spekboom, plumbago, tulbaghia, duinekraaibessie, Margaret Roberts lavender, Pelargonium Geranium Maverick, leucadendron, Natal plum, De Wet aloes, proteas and rosemary.
  • Plant seedlings such as pansies and violas, carnations, dianthus, cineraria, calendula, phlox, salvia, poppies, verbena, primula and strawberries.
  • Plant spring-flowering bulbs such as iris, freesia, ixia, narcissus, chincherinchee, ranunculus, sparaxis and tritonia.
  • Sow seeds of cornflower, sweet pea, alyssum, African daisy, linaria, lobelia and Virginian stocks.
Tip: Encourage efficient sweet pea growth by mulching regularly, snipping off new tendrils and side shoots, and using a trellis or stake to keep individual plants upright. Tip: When digging trenches to plant asparagus, the crowns must be spaced 45cm apart. Ensure the trench width is 45cm wide and then dig 25–30cm deep.

Feed
  • Feed azaleas, camellias and tea bushes with a handful of 3:1:5 fertiliser per bush. Mulch with compost and keep well-watered.
  • Use a handful of 2:3:2 per square metre to feed your lawn before rainfall.
  • Feed spring-flowering bulbs with bulb food and keep the soil moist at all times.
  • Indoor plants like calceolarias, cinerarias, cyclamen, daffodils, hyacinths, poinsettias and primulas should be fed every two weeks with a liquid fertiliser. Water every three days or when the soil feels dry.
  • Discontinue feeding pot plants. Water less frequently, but don’t let the plants become dry.
Prune
  • Thin out citrus trees as well as other evergreen fruit trees.
  • Tidy up summer- and autumn-flowering shrubs, including lavender, ribbon bush, plumbago, hydrangea, wild dagga and barleria.
  • To maintain the size and shape of conifers, prune them lightly.
  • Climbers like golden shower tree, canary creeper, clematis and wisteria also benefit from pruning in autumn.
OTHER BITS ON YOUR TO-DO LIST

Keep pests at bay
  • Treat conifers with Koinor or Bioneem to tackle aphid infestations.
  • Spray roses, pelargoniums and geraniums with a fungicide like Funginex , Virikop or Kumulus to prevent rust, mildew and black spots. Make sure to spray under the leaves, too.
  • Try organic snail bait like Ferramol or surround precious seedlings with crushed eggshells, sawdust or coffee grounds to curb pests.

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