We’re a couple of weeks into autumn and, while the air hasn’t cooled much during the day yet, it soon will. And with that usually comes the temptation to retreat indoors, which means the garden could slip down your priority list.
But stepping back now could cost you later, according to Fathima Mathen, Marketing Manager for GARDENA South Africa. “Autumn provides a critical window for setting your garden up to thrive in summer,” she says. “It’s when the groundwork is laid, and a well-timed clean-up, smarter watering and starting your compost heap now will make a real difference come summer.”
She shares five common mistakes that are easy to make in autumn but quietly come back to bite when it matters most:
In many parts of South Africa, particularly the Highveld, Cape Winelands and KZN Midlands, autumn leaf drop is significant. Allowing leaves to build up can suffocate your lawn and create the perfect conditions for pests and disease, blocking sunlight, trapping moisture, and weakening grass before winter dormancy even begins.
What to do instead: Clear leaves regularly using a rake or tools like the GARDENA Leaf and Lawn Collector, then repurpose them as mulch or add them to your compost heap rather than throwing them away.
Autumn through early spring (April–September) is prime composting season, but many gardeners get the balance wrong when building a compost pile. Heaps made of mostly dry leaves without enough green material slow decomposition, while skipping composting altogether means missing out on organic matter that enriches garden soil before planting season.
What to do instead: Mix dry leaves with green garden waste or kitchen scraps, and turn your compost regularly. GARDENA tools like the NatureLine Spade or Spading Fork to help make the job easier.
Many gardeners keep watering out of habit, while others cut back too sharply, leaving plants struggling. In South Africa, where water conservation is a priority and rainfall can be unpredictable, getting that balance right matters. Too much water in autumn can lead to root rot, fungal issues and unnecessary waste, while too little can leave plants stressed and unable to build strength ahead of winter.
What to do instead: Scale back gradually rather than stopping suddenly, and always check soil moisture first. Tools like GARDENA Water Controls, sprinklers or a Micro Drip System can help you water more precisely and avoid overdoing it.
Autumn is a demanding season for garden tools; pruning, cutting back, and clearing all need doing. It’s also when they’re often neglected. Dirty or blunt tools don’t just make the job harder. They can damage plants, spread disease and set back growth in spring.
What to do instead: Clean your tools after use, keep blades sharp and store them properly. And if something needs more than a quick clean or sharpen, GARDENA users can contact a local agent for support.
Perhaps the biggest mistake is doing nothing at all. An autumn clean-up isn’t about perfection. It’s about preparation. Removing dead material, cutting back, and tidying beds help prevent pests, support healthy regrowth and set your garden up for spring.
What to do instead: Don’t try to tackle it all at once; little and often is the key. Clear leaves, remove debris and cut back where needed as you go. GARDENA tools like the secateurs and combisystem range will help to get the job done.
“A well-prepared autumn garden largely takes care of itself through winter and thrives come summer,” adds Mathen. “It’s just about doing the right work at the right time. Get these five things in place now, and winter becomes the easy season it’s supposed to be,” she concludes.
And with South African summers made for outdoor living, a garden worth showing off starts with what you do this autumn.
