Spring Propagation: Growing New Plants From Cuttings and Divisions

Spring is the most productive season for plant propagation. Longer days, warming temperatures and the surge of new growth that comes with the season create near-ideal conditions for taking cuttings, dividing established clumps, and encouraging roots to form on new plant material. Whether you are a landscaper looking to bulk up stock for a project, a nursery professional propagating natives for revegetation, or a keen home gardener multiplying your favourite perennials, understanding how to work with the season rather than against it makes the whole process significantly more reliable.

This guide covers the essentials: why spring works so well for propagation, the two main methods most commonly used by both professionals and home growers, the materials and supplies that give new plants their best start, and how to set up conditions that support strong root development from the moment cuttings or divisions go into their growing medium.

Why Spring Is the Right Time to Propagate

The biology of propagation is closely tied to a plant's natural growth cycle. In spring, most plants shift from dormancy into active growth, and this internal shift is what makes the season so useful for taking cuttings and divisions. The plant's energy is moving upward and outward, stimulating cell division and growth, which is exactly the process needed to form new roots on a cutting or to re-establish a divided clump.

For softwood cuttings in particular, the window in early to mid spring, when new shoots are actively elongating but have not yet hardened off, is the most productive period of the year. These young, flexible stems are far more responsive to rooting treatments than the woody, mature growth produced later in summer or autumn. They root faster, with higher success rates, and the resulting plants have more time to establish before the following winter.

Divisions also benefit from being made in spring. Established clumps that have been divided and replanted into fresh growing medium during the growing season recover and consolidate root systems quickly, rather than sitting in a dormant state waiting for conditions to improve.

Taking Cuttings: The Basics

A cutting is simply a section of stem, leaf or root removed from a parent plant and encouraged to form its own root system. Stem cuttings from new spring growth are the most common type used in nursery and garden settings, and the process is straightforward once you understand what the cutting needs to succeed.

Choosing and Preparing the Right Cutting Material

The best cuttings come from healthy, actively growing parent plants that are free from disease and pest pressure. Look for new shoot growth that is firm enough to handle without wilting, but still soft and flexible rather than woody. A typical softwood cutting is 8 to 15 centimetres long, with two to four nodes, and stripped of leaves from the lower half of the stem so that the buried section does not rot.

A clean, sharp cut is essential. Crushing or tearing the stem at the base damages the cells that will form the root initiation zone, reducing success rates. For this reason, the cutting tool matters. A quality pair of secateurs that hold a sharp edge and make a clean single cut, rather than compressing the stem, will consistently produce better cuttings than a blunt or poorly maintained blade. Clean blades between plants to avoid transferring any disease from one batch of material to the next.

Sharp blades, clean cuts A quality pair of secateurs is one of the most important tools in your propagation kit. Blunt blades crush stem tissue and reduce strike rates. Shop Secateurs →

Rooting Gels and Why They Make a Difference

Once the cutting is prepared, the base of the stem is treated with a rooting hormone before being placed into growing medium. Rooting hormones work by introducing auxins, the plant growth regulators that trigger root initiation, directly to the wound site at the cutting's base. Without this step, root formation is slower, less consistent, and more dependent on the natural hormone levels already present in the cutting.

Esi-Root Propagating Gel is a professional-grade rooting gel that coats the cut surface of the stem and adheres through the potting process, delivering hormone directly to the zone where roots will form. Gel formulations are generally preferred over powder for stem cuttings because they create consistent contact with the wound site rather than falling away when the cutting is inserted into the medium. The result is more uniform root development and better overall strike rates across a batch.

Esi-Root Propagating Gel Professional-grade gel that adheres to the cut surface and delivers rooting hormone directly where it's needed, for more uniform strike rates across a batch. View product →

Choosing the Right Growing Medium

The medium into which cuttings are placed needs to do two things simultaneously: hold enough moisture to prevent the cutting from desiccating, and drain freely enough to keep the environment aerobic. Roots require oxygen to develop, and a waterlogged medium quickly becomes anaerobic, which inhibits rooting and encourages rot.

Cocopeat is one of the most widely used propagation media in professional horticulture, and for good reason. It has excellent water retention while still maintaining adequate air-filled porosity, it is pH neutral, and it provides a clean, disease-free base with no weed seed contamination. The Cocopeat Coir Pith Block expands significantly when hydrated, producing a ready-to-use propagation medium from a compact, easy-to-store block. For applications where a coarser texture is wanted to improve drainage further, Coir Cocochip provides larger particle sizes that create more pore space in the mix.

For propagators working with a wider variety of plant types, Sphagnum Peat Moss remains a benchmark propagation medium, particularly for species that prefer acidic conditions or for mixes where additional water retention is needed. It is often combined with perlite or cocopeat to balance moisture retention with drainage.

Dividing Established Plants

Division is the other major propagation method that comes into its own in spring, and it is particularly suited to clumping perennials, ornamental grasses, ground covers and certain shrubs that have developed into dense masses over time. Unlike cuttings, division does not require rooting hormones or specialised media in the same way, but the process still benefits from careful preparation and the right tools.

When and How to Divide

The best candidates for division are clumps that have become congested, where flowering has declined or the centre of the clump is dying out, or where a plant has simply outgrown its space. In spring, as new growth is just emerging from the base of the clump, is the ideal time to work on most species.

The clump is lifted from the ground, the root mass is separated into sections, and each division is replanted promptly into prepared soil or growing containers. The key is to work quickly so that exposed roots do not dry out, and to ensure each division includes a healthy section of root system and several growing points. Sections that are too small, or that consist mostly of old woody crown material with few active roots, are unlikely to recover well.

Sharp, clean tools make this process much easier and cause less damage to root tissue. A sharp spade or garden fork for lifting, and a knife or secateurs for dividing finer-rooted material, should all be clean and in good condition before you start.

Supporting Recovery After Division

Freshly divided plants are under stress. Their root systems have been reduced, and they need time to re-establish before they can support significant top growth. Keeping divisions consistently moist, shaded from intense afternoon sun for the first week or two, and protected from strong drying winds will significantly improve recovery rates.

For divisions being potted into containers rather than planted directly into the ground, Planter Bags & Pots provide a practical growing solution that allows roots to develop freely while keeping the plant contained and mobile. Planter bags are widely used in nursery production because their fabric construction encourages air pruning of roots, which promotes a denser, more fibrous root system rather than the circling roots that can develop in hard-sided containers.

Creating the Right Conditions for Root Development

Regardless of whether you are working with cuttings or divisions, consistent moisture and warmth are the two environmental factors that most influence rooting success. Cuttings lose moisture through their leaves before they have roots to replace it, which is why maintaining high humidity around the foliage while keeping the medium moist but not saturated is so critical in the early stages.

A simple way to maintain humidity around trays of cuttings is to cover them with a clear dome or loosely draped polythene sheeting until roots form. Mist lightly rather than watering heavily, and check regularly for signs of mould or rot, which indicates the environment is too damp or airflow is insufficient.

For nurseries or larger propagation operations, Shadecloth provides excellent environmental control over propagation benches, reducing solar radiation and temperature extremes while still allowing airflow. Managing light intensity is particularly important in spring, when days are lengthening and temperatures can spike unexpectedly, causing cutting trays to dry out rapidly if left in full sun.

Labelling and Tracking Your Propagation

In a propagation setting with multiple species or batches running simultaneously, accurate labelling is essential. A cutting that is not labelled at the time it is taken is almost impossible to identify accurately once it is rooted and growing. Plant Ties and Tags provide a simple, reliable way to label individual pots, trays, and batches throughout the propagation process, keeping records clean and reducing the chance of costly mix-ups in a production environment.

Supporting New Roots with Biostimulants

Once cuttings have struck and divisions have begun to consolidate, supporting the continued development of a healthy root system gives young plants the best possible foundation going into summer. Root biostimulants work by encouraging the proliferation of fine root hairs, improving the plant's capacity to take up water and nutrients from its growing medium.

Rootzone Root Biostimulant is formulated specifically to support root development at the establishment stage, making it a natural complement to the propagation process. Used as a drench once cuttings are rooted or divisions are settling into their new containers, it supports the transition from a fragile young plant to one with a robust and actively growing root system.

Grafting in Spring

For those working with grafted plant material, spring is also the primary season for grafting operations in most Australian climates. The combination of actively growing rootstock and fresh scion wood from new season growth creates good conditions for successful union, and the warming temperatures that follow support callus formation and the development of the graft union.

Dura Grafting Tape provides the reliable, flexible binding needed to hold scion and rootstock firmly together while the graft union forms, stretching with growth and degrading naturally over time so it does not need to be removed. Paired with Steriprune Aerosol Paint to seal cut surfaces and protect against infection, these are the standard tools of professional grafting operations across nursery and orchard settings.

From Bench to Ground: Getting Propagated Plants Ready for the Landscape

The propagation bench is just the beginning. Once plants are rooted and sufficiently established, the transition to either larger containers or permanent planting positions requires careful handling to avoid undoing the work of the propagation phase.

Young plants moving from small propagation trays into the landscape benefit from the same soil preparation principles that apply to any planting project: well-structured growing medium, consistent moisture at the root zone during establishment, and appropriate support for root development. The Nursery and Plant Propagation collection covers the full range of supplies needed to manage this transition, from potting and growing containers through to plant ties, tags and bamboo stakes for initial support.

Every New Plant Starts with the Right Conditions

Spring propagation is one of the most rewarding aspects of professional and home horticulture. Getting more plants from the ones you already have, multiplying varieties that perform well in your conditions, and growing stock from scratch rather than purchasing it all require the same fundamentals: the right timing, clean sharp tools, quality propagation media, reliable rooting treatments, and consistent aftercare.