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Gardening To-Do’s – Winter Rainfall Regions – May

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What to do in your garden during May

Follow the tips beneath as a basic maintenance guide for your garden this May.

Plant & Sow


Sow all summer flowering annuals:

Sow these winter flowering annuals:


Gardenias – known as one of the most fragrant shade-loving plants. They have attractive evergreen glossy foliage that grows into a neat round bush. These beautiful plants love growing in well-drained, acid soil.


Sow vegetables like:

Garden Maintenance


Fertilize fruit trees like: 

  • Fertilise annuals and bedding plants with a liquid fertilizer every 14 days.

General garden maintenance

  • Lift Dahlias during this month and store in a cool, dry place.
  • Plant bulbs like Ranunculus and anemones at two-week intervals to extend the flowering time.
  • Sow cool-season shade lawn.
  • Make hardwood cuttings.
  • Mow the lawn if necessary.
  • Water plants properly, giving them a thorough soaking every three or four days to encourage deep root development. Mulch well with organic material.
  • Spray apples, pears and quinces against codling moth; and apricotscherries, nectarines, peaches and plums against fruit fly. Spray grapes for mildew where necessary.
  • Deadhead roses regularly and water two or three times weekly.
  • Mulch the garden beds.
  • Remember to deadhead annuals and bedding plants regularly and feed every 2 weeks or so with diluted liquid fertilizer.
  • Continue to remove weeds from lawns and pavings.
  • Lift and divide spring-flowering irises.
  • Keep all perennials well watered and feed with all Purpose Fertilizer.
  • Remember to water the garden early in the morning and preferably on wind-free days.
  • Feed flowering shrubs once a month.
  • Feed your hydrangeas.

For May maintenance tips on watering, pruning,
pests and disease, fertilizing and much more visit our countrywide maintenance guide.

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