March is a key transition month for gardens across Victoria. As summer fades and autumn approaches, your garden needs a shift in care to stay healthy, productive, and resilient through the cooler months.

Taking the right steps now helps reduce maintenance later, improves plant health, and sets your garden up for a strong spring.

Tidy Up Summer Growth

Late-summer plants are still producing, but many are nearing the end of their growth cycyle. Harvest remaining vegetables regularly and remove spent plants, dead growth, and tired annuals. This improves airflow, reduces pests and disease, and creates space for autumn planting.

Weeding and Soil Preparation

March is the ideal time to remove weeds before they seed. Once cleared, improve soil health by adding compost or well-rotted organic matter. Healthy soil supports stronger roots, better moisture retention, and improved nutrient availability.

Apply a light layer of mulch to garden beds to help suppress weeds, regulate soil temperature, and retain moisture — especially important during dry early-autumn conditions.

What to Plant in March in Victoria

Autumn is one of the best planting seasons in Victoria. Warm soil and milder temperatures allow plants to establish without heat stress.

Recommended plants for March include:

Leafy greens: lettuce, spinach, silverbeet, rocket
Brassicas: broccoli, cauliflower, cabbage, kale
Root vegetables: carrots, beetroot, radish, parsnip
Cool-season crops: peas and broad beans

Ornamental gardens also benefit from planting now, giving shrubs and perennials time to settle before winter.

Pruning and Garden Maintenance

Light pruning can help tidy the garden and encourage new growth. Avoid heavy pruning on spring-flowering shrubs, as they often bloom on old wood. When unsure, gentle shaping is safer than hard cutting.

Refresh Pots and Herbs

Container plants often suffer during summer heat. Refresh potting mix where needed, trim herbs, and apply a slow-release fertiliser. Herbs such as parsley, thyme, oregano, and mint thrive when planted or refreshed in autumn.

Adjust Watering for Autumn

While temperatures are cooling, consistent watering is still important. Reduce frequency but water deeply to encourage strong root development and support new plantings.

Prepare Now, Enjoy Later

March is about clearing what’s finished, nourishing the soil, and planting with the future in mind. A little care now leads to healthier plants, easier maintenance, and a garden that thrives through autumn and winter.

If you need help preparing your garden for the season ahead, the Flora Scope team is here to help — thoughtful garden care now makes all the difference 🌿

March Gardening Checklist for Victoria: How to Prepare Your Garden for Autumn