Calendar: Gardening For September In Australia - Richgro
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Gardening for September

Spring is here, so enjoy the warmer weather and get out in the garden with these handy hints!

Roses and Flowering Plants

It’s Rose season, with your pruned roses now starting to shoot with new life. It is a great time to fertilise and protect your roses. Use Black Marvel Premium Rose food and add some Bug Killa to control aphids from damaging your new shoots. Improving your rose garden soil will help with diseases and pests also.

It’s time to prune summer flowering shrubs such as Hibiscus, Bougainvilleas and Plumbago. if you have any spring flowering blossom trees flowering early, prune them after they have finished flowering.

Feed the spring flowering bulbs after they have finished flowering with a complete fertiliser. After flowering these plants tend to be forgotten about, but they are busy developing the embryo for next year’s flowering before they go dormant.  September is the time to plant your summer flowering bulbs.

Last chance to plant bare root stock and plant seeds as the soil is still wet, with promise of some more spring rains on the way. Don’t forget to add Ezi-Wet soil wetter to maximise on the uptake of good rain water by plants before the dry season.

This is a good time to plant as the soil is still wet with a good chance of more rain on the way.


Most natives can be pruned after flowering, be sure to remove any deadwood, mulch and feed the existing natives. Using a fertiliser low in Phosphorus is best, such as Richgro’s Organics Native and Protea Plant Food.

Prepare your soil for spring planting and plant and fertilise with an Organic Native fertiliser.

Fruit and Vegies

Tip of the Month:

Feeding all established fruit trees including citrus regularly throughout growing season is important for fruit production. Richgro Black Marvel Fruit & Citrus Premium Food is ideal! 

It’s summer vegie gardening time. Wait until the danger of frost has passed before you plant tomatoes, eggplant, chillies and capsicums.  September is also a good time to plant potatoes, lettuce, cabbage, capsicum and carrots.

As the weather warms up give the passion fruit vine a prune. One third of the growth can be trimmed off to keep them contained a little for the following growing season. Passion fruit will bear fruit on their new growth. You can give fruit trees a small prune if needed and remove any deadwood.

If the climate suits, it’s time to plant tropical fruits such as mangoes’ and bananas.

With the warmer weather, pests will start to become more active and feed on the new growth on your fruit and vegies. Protect your crops with Richgro Beat-A-Bug Natural insect spray, which is great on fruit trees as well. Mulch around the base of the tree – remember to leave a 10cm gap though around the trunk to reduce diseases.

For those organic Gardeners, applying  an organic plant food to your fruit trees now, will give great flowers, and in turn, produce great fruit.

Lawn and Turf Maintenance

Remove thatch from your lawn if you haven’t done so already and then you can give it a good top dress. This will regenerate tired lawns or encourage new and healthy lawn for the spring.

It is best to get your soil right now before the warmer weather, so apply Ezi-Wet to encourage root growth and apply lawn beetle and grub Killa to stop pest attacking the lawn.

General Garden Maintenance Tips

  • Weeds are out in force, so start weeding and spraying with Beat-A-Weed. Normally the first thing to start growing well will be the weeds – so get them out early!
  • As it warms up apply a wetting agent to ensure the water being applied is soaking into the soil.
  • Mulch garden beds to keep in moisture, and control weeds. Beds that aren’t mulched will dry out quickly.
  • Lift and divide clumping plants if you haven’t done so yet.
  • Your garden may still have snails around as there is still a bit of rain around. Add some snail pellets and protect new growth.
  • Add organics to the soil such as organic fertiliser or a layer of manure to garden beds.
  • Give plants a boost in early spring by using a Liquid fertiliser.