Why autumn is the secret season for effortless plant propagation

Gardening · Published 7 October 2026 Swipe more like this →

In short: While summer brings rapid root growth, it demands constant vigilance. For the busy gardener, the transition to autumn offers a strategic advantage. The milder weather allows you to multiply your garden collection with significantly less maintenance, using simple techniques to transform cuttings and seeds into a lush, new landscape.

Propagating in the cooler months is an ideal strategy for those seeking a low-maintenance approach to gardening. While summer cuttings develop roots quickly, they are highly vulnerable and require intense attention. In contrast, the milder autumn temperatures provide a more stable environment for species like Correas. When taking semi-hardwood cuttings, the goal is to find the transition point where the soft, springy growth meets the firmer wood, avoiding any stems that are currently in flower.

Success with cuttings requires precision in both preparation and planting. After snipping a few centimetres below a node—the point where leaves emerge—you should tidy the stem and remove the bottom third of the leaves. To prevent damaging the delicate base where roots will form, use a dibble to create holes rather than pushing the stem directly into the soil. For many species, maintaining a consistent level of warmth and moisture is vital; a makeshift hot house can even be constructed using an old esky and a piece of glass from a picture frame.

For plants like the Melicytus dentatus, or tree violet, propagation via seed offers a different challenge. Because the fleshy berries contain germination inhibitors, the seeds must be cleaned of all pulp to mimic the natural digestive process of birds or blue-tongued lizards. This involves soaking the seeds in soapy water for several days, pressing them through a sieve, and rinsing thoroughly. Once scattered over a growing medium and covered to a depth equal to the seed's width, a thin layer of fine grit can provide extra protection against harsh winter weather. While germination can take anywhere from weeks to many months, the reward is a new crop of seedlings by spring.

General information, not professional advice. Spotted an error? Flag the card or see corrections and complaints.

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