Aglaonema, commonly called Chinese evergreen, roots readily from stem cuttings and separates cleanly through division, making both methods accessible even if you have never propagated a houseplant before. Stem cuttings work well when you want multiple new plants from a single leggy or overgrown specimen, while division is the faster route to an already-established plant with its own root system. The techniques are straightforward, but the details matter: where you cut, how you treat the wound, what medium you root in, and how warm and humid you keep things all influence whether you end up with a thriving new Aglaonema or a mushy, rotting stem.
How Stem Cuttings Work on Aglaonema
Aglaonema grows with a thick, cane-like stem that produces nodes along its length. Each node is a point where a leaf attaches (or once attached), and it contains dormant tissue capable of producing new roots and shoots. When you sever a section of stem and place it in the right conditions, those nodes activate. Roots emerge first, typically within two to four weeks, and new leaf growth follows once the root system is established enough to support it. The plant’s natural tendency to root from nodes is strong enough that Aglaonema cuttings will often root even without any rooting hormone, though hormone treatment can speed things up and produce a more robust root system.
Taking Stem Cuttings Step by Step
Start with a healthy parent plant that has at least a few inches of visible stem. Leggy Aglaonema that have lost lower leaves and developed a bare trunk are ideal candidates because you get usable cutting material while also rejuvenating the mother plant. Use a clean, sharp blade — a sterilized knife or pruning shears. Dull or dirty tools crush tissue and introduce pathogens, which matters more than usual with Aglaonema because its thick stems hold a lot of moisture and are prone to fungal infection.
Cut the stem into sections roughly 5 to 10 centimeters (2 to 4 inches) long, making sure each piece includes at least one node. Two nodes per cutting is better because it gives you a backup if one fails. If you are taking a terminal cutting (the top portion of the stem with leaves still attached), that piece can be longer and will typically root fastest because it retains the growing tip. Mid-stem sections without leaves will also root, but they take longer since the plant needs to produce both new roots and new shoots from scratch.
Let the cut ends dry for a few hours before planting. This brief callusing period allows the wound surface to seal slightly, reducing the chance of rot when the cutting contacts moist medium. Some growers let cuttings sit overnight; others wait just an hour or two. In warm, dry conditions the callus forms faster.
Choosing a Rooting Medium
Aglaonema cuttings root in several media. The most common options are perlite, a 50/50 mix of peat and perlite, sphagnum moss, or plain water. Each has trade-offs. Water rooting lets you watch root development in real time, which is satisfying and makes it obvious when the cutting is ready to pot up. However, roots that form in water tend to be more fragile and sometimes struggle when transplanted into soil, so you want to move the cutting to a solid medium once roots are about 2 to 3 centimeters long rather than letting them grow long and tangled in the jar.
Perlite and peat-perlite mixes offer good drainage while retaining enough moisture to keep the cutting hydrated. Sphagnum moss works well too, especially if you are rooting cuttings in a sealed container or bag to maintain humidity. The key across all media is moisture without waterlogging. Aglaonema stems are succulent enough to hold water internally, and if they sit in soggy conditions, the cutting rots before it roots.
Planting and Positioning
Insert the cutting vertically with the bottom end (the end that was closer to the plant’s base) facing down. Orientation matters — nodes are polar, and roots emerge more reliably from the basal end. If you are rooting a leafless mid-stem section horizontally (laid on its side on damp moss), keep the nodes facing upward so new shoots can emerge without obstruction. Bury just the lower centimeter or two; the node does not need to be deeply submerged in medium.
Does Rooting Hormone Actually Help?
Research on Aglaonema cuttings consistently shows that the plant roots without any hormone treatment, but auxin-based rooting hormones produce more roots and longer roots. In one study on Aglaonema modestum, untreated cuttings produced about six roots per cutting, while cuttings given a basal quick-dip in auxin solution produced roughly nine and a half roots with noticeably greater total root length.1Scientia Horticulturae. Cutting propagation of foliage crops using a foliar application of auxin A separate trial found that all Aglaonema modestum cuttings rooted at a 100 percent rate regardless of treatment, but IBA-treated cuttings developed around ten roots on average compared to fewer in the control group, and the treated plants grew taller.2International Research Journal of Innovations in Engineering and Technology. Effect of Indole Butyric Acid (IBA) Concentration on Rooting of Some Ornamental Plants
For home propagators, this means rooting hormone is helpful but not essential. If you have a powdered or gel rooting product on hand, dip the cut end before planting. IBA (indole-3-butyric acid) is the most widely available active ingredient in consumer rooting products and is the compound used in nearly all the Aglaonema rooting research. One study on the variety Siam Aurora found that combining IBA with NAA (another synthetic auxin) at moderate concentrations produced the best root induction results.3Journal of Horticulture Production Technology. Induksi Akar pada Setek Batang Aglaonema sp. Var Siam Aurora dengan Pemberian IBA dan NAA You do not need to hunt down specialty chemicals, though. Standard hardware-store rooting powder typically contains IBA at a concentration suitable for softwood cuttings, and that works fine for Aglaonema.
Interestingly, increasing hormone concentration beyond a moderate level did not improve results in the Aglaonema modestum study — more hormone did not mean more roots.2International Research Journal of Innovations in Engineering and Technology. Effect of Indole Butyric Acid (IBA) Concentration on Rooting of Some Ornamental Plants Over-applying rooting hormone can actually damage tender stem tissue, so a light dusting or brief dip is better than a heavy coating.
Propagation by Division
Division is the other main propagation method, and it is even simpler than stem cuttings because you are separating a plant that already has its own roots. Mature Aglaonema naturally produce offsets, or “pups,” that grow from the base of the mother plant. Over time, a single pot can contain what looks like one bushy plant but is actually a cluster of several individual crowns sharing the same root mass. Division just means teasing those apart.
To divide, unpot the plant and gently shake or rinse the soil from the root ball so you can see where individual crowns connect. Separate them by pulling apart at the natural junctions, or cut through connecting roots with a clean blade if they are tightly tangled. Each division should have its own stem, a cluster of leaves, and a portion of the root system. Pot each division into its own container with fresh, well-draining potting mix. Water lightly and keep the divisions in a warm, shaded spot for a week or two while they recover from the disturbance.
Division is best done during repotting in spring or early summer, when the plant is actively growing and can heal quickly. Unlike stem cuttings, divided plants rarely experience a visible stall in growth because they already have functional roots. You may see a leaf or two yellow and drop in the days after division as the plant adjusts, but new growth usually resumes within a few weeks.
When to Choose Cuttings Over Division
Division gives you fewer but stronger new plants. If your Aglaonema has three distinct crowns, you get three plants, each already rooted and growing. Stem cuttings, on the other hand, let you multiply more aggressively. A single long stem can yield several cuttings, each capable of becoming an independent plant, so you can turn one leggy specimen into half a dozen new ones. The trade-off is time: cuttings need weeks to root and months to fill out, while divisions look like established plants almost immediately.
Cuttings also make sense when the parent plant has grown tall and unattractive. Cutting the stem back hard gives you propagation material and forces the stump to push out fresh, compact growth from lower nodes. Division does not solve the legginess problem because you are just separating what is already there.
It is worth noting that commercial growers consider both stem cuttings and division relatively slow compared to tissue-culture micropropagation, which is how mass-market Aglaonema are often produced in nurseries.4Journal of Plant Physiology and Breeding. Micropropagation of Aglaonema ‘Pink Lady’ for authentic varietal production For a home grower with one or two plants, though, cuttings and division produce plenty of new material without any laboratory equipment.
Temperature, Humidity, and Light During Rooting
Aglaonema is a tropical understory plant, and its cuttings root best in conditions that mimic that environment: warm, humid, and out of direct sun. A temperature range of roughly 24 to 30°C (75 to 86°F) is ideal for root initiation. Below about 20°C (68°F), rooting slows dramatically and the risk of rot increases because the cutting sits in moist medium for longer without producing roots to take up water.
Humidity matters more for cuttings than for divisions because cuttings without established roots lose moisture through their leaves (if they have any) and through the cut surface. A simple plastic bag loosely draped over the pot, a clear storage container used as a cloche, or a propagation tray with a dome all work to keep humidity high. Vent the cover every day or two to let fresh air circulate and prevent mold from developing on the medium surface.
Light should be bright but indirect. Aglaonema tolerates low light as a mature plant, but cuttings trying to produce roots benefit from moderate light that drives enough photosynthesis (in leafy cuttings) to fuel root growth without overheating or drying out the cutting. A spot near a north- or east-facing window, or a few feet back from a brighter window, is usually right. Avoid placing cuttings in full sun, which can cook them under the humidity dome.
Stem Rot and How to Avoid It
The single biggest failure mode with Aglaonema cuttings is stem rot. The thick, fleshy stems are a perfect environment for fungal pathogens once the tissue is cut open and exposed to moisture. Research has identified Fusarium species as a cause of stem rot in Aglaonema, with co-infection by multiple Fusarium species making the disease more severe.5PubMed Central. Co-infection of Fusarium aglaonematis sp. nov. and Fusarium elaeidis Causing Stem Rot in Aglaonema modestum in China That research focused on potted plants in cultivation, but the same pathogens can attack fresh cuttings, especially if tools or media are contaminated.
Prevention comes down to a few practical steps:
- Sterilize tools: Wipe blades with rubbing alcohol or a dilute bleach solution before cutting. This is the cheapest insurance against introducing Fusarium or other pathogens.
- Callus before planting: Let the cut end dry and seal before it contacts moist medium. Even a few hours of air exposure helps.
- Use clean medium: Fresh, unused perlite, peat, or sphagnum moss is less likely to harbor fungal spores than recycled potting soil.
- Avoid waterlogging: Keep the medium moist but never standing wet. Excess moisture creates the anaerobic conditions that Fusarium and similar fungi thrive in.
- Remove affected cuttings fast: If a cutting turns mushy at the base and develops a foul smell, it has rotted. Remove it immediately so the pathogen does not spread to neighboring cuttings.
If rot starts at the bottom of a cutting but the upper portion is still firm and green, you can sometimes salvage it by cutting above the rotted section with a clean blade, letting the new cut callus, and re-rooting the remaining piece. You lose length, but a shorter healthy cutting is better than a long dead one.
Timeline and What to Expect
Under good conditions, Aglaonema stem cuttings begin showing root nubs in about two to three weeks. Terminal cuttings with leaves tend to root slightly faster than leafless mid-stem pieces because the leaves provide energy through photosynthesis. By four to six weeks, most cuttings have a root system developed enough to transplant into a regular pot with standard houseplant soil. New leaf growth from the top of the cutting (or from a node on a leafless section) typically appears a few weeks after roots are established.
Divisions recover faster. Because they already have roots, most divisions resume active leaf production within two to three weeks of separation. You may notice minor wilting or a single yellowing leaf right after dividing, which is a normal stress response. As long as the roots are intact and the medium is kept lightly moist, the plant bounces back quickly.
Growth rate after propagation varies a lot by cultivar. Green varieties tend to grow faster than heavily variegated types because they have more chlorophyll to power growth. A solid-green Aglaonema modestum cutting might fill a small pot in a few months, while a pink or red cultivar like Siam Aurora or Lady Valentine may take noticeably longer to reach the same size. Patience with the fancy-colored varieties is normal.
What Happens to the Mother Plant
If you take stem cuttings from a leggy Aglaonema, the remaining stump does not die. As long as at least one or two nodes remain above the soil line, the stump will push out new growth, often producing multiple shoots where there was only one stem before. This is actually one of the best reasons to propagate by cuttings: you rejuvenate the parent into a bushier, more compact plant while simultaneously getting new plants from the removed material. Water the stump as usual and give it the same light and warmth it had before. New shoots typically appear within a few weeks.
After division, the mother plant (or what remains of it) simply continues growing as before, just smaller. Because you separated some of the root mass, it helps to go easy on watering for the first week or so until the remaining roots adjust to the reduced plant size. Overwatering a freshly divided Aglaonema is a common mistake because the root ball is smaller than it was, yet the pot may still be the same size, holding more moisture than the reduced plant can use.
Propagating in Water Versus Soil
Water propagation is popular with Aglaonema because it is simple and lets you monitor progress visually. Place the cutting in a jar of clean water with at least one node submerged, and change the water every few days to keep it oxygenated and free of bacterial film. Roots usually appear within the same two-to-four-week window as soil-rooted cuttings, sometimes slightly faster because the cutting has constant access to moisture.
The downside is the transition. Roots grown in water are structurally adapted to an aquatic environment — they are more delicate and have fewer root hairs than roots grown in a solid medium. When you transplant a water-rooted cutting into soil, there is an adjustment period where the plant may stall or even lose some roots before new ones adapted to the drier medium grow in. To minimize transplant shock, move the cutting to soil while the roots are still relatively short (a couple of centimeters) rather than waiting until you have a dense root tangle. You can also gradually add soil to the water over a week to give the roots a transitional environment.
Rooting directly in perlite or a peat-perlite mix avoids the transition problem entirely. The roots that develop are already conditioned to grow in an aerated solid medium, so potting up is less disruptive. For propagators who want the highest success rate with the least fuss, soil or perlite rooting tends to edge out water rooting, especially for mid-stem cuttings without leaves that cannot afford to waste energy adapting twice.
Variegated Cultivars and Propagation Quirks
Aglaonema cultivars with striking pink, red, or white variegation have exploded in popularity, and these are the plants people most often want to propagate. The good news is that stem cuttings and division preserve variegation faithfully because you are cloning the parent plant rather than growing from seed (which can produce unpredictable color patterns). Every cutting from a pink Siam Aurora will produce a pink Siam Aurora.
The catch is that highly variegated cultivars tend to grow more slowly and root less vigorously than all-green types. Leaves with large non-green areas produce less energy from photosynthesis, so the cutting has fewer resources to invest in root development. This does not mean variegated Aglaonema cannot be propagated by cuttings — they absolutely can — but you should expect a longer timeline and may benefit more from using rooting hormone to compensate for the slower natural process. Terminal cuttings with several leaves attached are preferable for these slower-growing cultivars because the leaves provide the energy the cutting needs to root.