Serruria, including well-known varieties such as Blushing Bride and Pretty n Pink, are prized for their delicate flowers and refined growth habit within the Proteaceae family. To maintain a compact, well-structured plant and ensure abundant spring flowering, correct pruning is essential. This guide outlines when and how to prune Serruria, helping to promote strong stem development, balanced growth and consistent flowering performance in Australian garden conditions.
Regular pruning is essential to develop a well-balanced framework, encouraging the plant to produce stronger stems and a greater abundance of flowers in the following season. Without pruning, Serruria can become leggy, with new growth forming too high on the stems, resulting in an uneven and untidy appearance.
The ideal time to prune is in late spring, after flowering has finished. At this stage, conditions remain relatively mild, allowing the plant to recover efficiently before initiating new growth. Delaying pruning may reduce the plant’s ability to set flower buds, potentially impacting the following season’s display.
The method demonstrated below uses Serruria Blushing Bride, though the same principles apply across other varieties, including Pretty n Pink.
The primary objective when pruning Serruria is to create an open, well-structured plant with evenly spaced branches. Avoid overcrowding, as this can restrict airflow and lead to weaker stems.
Always use clean, sharp secateurs, and regularly sanitise them with methylated spirits to minimise the risk of disease transmission.
Begin by pruning away any downwards facing or untidy branches (image 1). You can prune these right back to the main stem (image 2).
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Next, we prune back this season’s growth. You can identify the current season’s growth by the colour of the stem. New growth will be a lighter green colour, whereas the mature stems will be brown and woody (image 3).
Cut these newer stems back to approximately 10–15 cm in length. It is important to retain sufficient healthy foliage, as Serruria requires leaves to regenerate new shoots - bare stems will not reshoot.
For consistency, aim to prune all stems to a similar length, creating a uniform, compact shape. Your secateurs can be used as a visual guide to maintain even cuts across the plant (image 4 & 5).
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To prevent overcrowding, selectively thin out dense areas of growth if necessary. View the plant from multiple angles to identify branches that are crossing, overlapping, or competing for space (image 7).
Choose the strongest or best-positioned stem to retain, and prune the others back to the main branch (image 8). This process improves airflow, light penetration, and overall plant health.
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Following pruning, new buds will begin to form along the cut stems during the warmer months (image 9). Ensure your plant is kept well-watered throughout summer to support this new growth.
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Serruria follow a one-year flowering cycle, producing blooms in spring. By pruning annually after flowering, you will encourage a well-shaped plant and be rewarded with an abundance of delicate flowers the following spring.