Aeonium Undulatum Care and Propagation: A Complete Guide

By

There are a number of succulent plants that would be a great addition to any collection.

Still, the Aeonium undulatum is a particularly delightful choice.

But if you’re a beginner gardener and don’t know how to take care or propagate this plant, worry not!

This guide will teach you everything you need to know about Aeonium undulatum care and propagation, so they thrive in your garden with minimal effort on your part.

Overview

Aeonium undulatum, commonly known as Stalked Aeonium, is a flowering plant native to Gran Canaria in the Canary Islands.

The Aeonium undulatum, one of the larger species of the Aeonium genus, has 8 to 12-inch rosettes with green fleshy leaves up to more than three feet away from the ground on a single stem.

Aeoniums are typically rosette plants that grow from their top tip, but this one does not branch off the main stem.

The Aeonium undulatum succulent plant produces yellow flowers in pyramidal inflorescences.

The Aeonium plant is a slow grower and can take up to three years or more for the Aeonium undulatum succulent plant to reach its full flowering potential.

How To Care for Aeonium Undulatum (Stalked Aeonium)

Aeonium undulatum care is a relatively simple and easy process that you can do to keep your succulent happy.

Below is a list of things you should know to care for an Aeonium undulatum properly.

Sun Exposure & Light Requirements

Aeonium undulatum is a succulent plant that requires a lot of sun exposure to grow well.

The plant should be placed in a well-lit location. While this plant can handle low light levels, it will grow best with at least four hours of direct sunlight per day.

The best place you can leave your Aeoniums outside during summer is on a patio or balcony with plenty of natural lighting.

Alternatively, if there are no balconies nearby, try placing them near large windows where they’ll get enough light from the sun to thrive.

This Aeonium species can be a tricky succulent to grow and care for indoors because the plant needs a lot of light.

If you decide to place them in your home, make sure they are within six feet of a window that gets a few hours of direct sunlight or partial shade per day during winter and up to four hours per day during summer.

It is also best if the window faces south or west.

Watering Requirements

Water Aeonium undulatum when the soil feels dry to the touch.

Give enough water so that it drains well from the pot’s bottom after a few minutes and no more than a quarter-inch of water is left in the saucer.

The Aeonium undulatum only needs to be watered about once a week.

If the plant is not getting enough water, the leaves will start to wilt and turn brown. If this happens, then it’s likely that you are watering your Aeonium too little rather than too much!

Watering more often may cause root rot or blights on stems and roots. You can decrease its need for water by planting this succulent in a pot with a drainage hole and providing good air circulation.

It can take up to two weeks without watering before any signs of wilting appear on an Aeonium plant!

This makes them excellent plants if you’re looking for something low-maintenance to grow indoors or outdoors during summer dry spells.

Soil Requirements

Aeonium undulatum requires a soil that drains well but retains moisture. A cactus mix or a succulent soil/sand blend works well.

When a cactus mix is not a viable option, a mix of 50% regular potting soil and 50% sand can be used.

Aeoniums should also have a layer of gravel at the base to prevent root rot from water that seeps out or spills onto the surface.

Temperature and Humidity

Aeonium undulatum is a little hardy succulent, but they still need a reasonable temperature in order to thrive.

In the wintertime, a daytime high of 60 degrees and a nighttime low of 55 is ideal. Summer days should be between 75 and 85 degrees, with an average nighttime temperature between 65 and 70 degrees.

When your home temperatures fluctuate drastically during the day or at night, you may want to consider placing them outside for a few hours per day. This way, it can acclimate gradually for several weeks before putting it out on its own permanently.

Keep humidity levels around 40-50% in winter to avoid Aeonium leaf spot or other fungus. 

In summer, Aeoniums can tolerate more humidity as high as 60%.

Fertilizing

Aeonium undulatum plants don’t need fertilizer as a general rule.

But it’s a good idea to fertilize with a weak fertilizer solution every once in a while. Fertilizer will help Aeonium plants to grow quickly and easily.

The best fertilizer to use for Aeoniums is a cactus/succulent plant food. Look for a product that contains nitrogen, phosphorus, and potassium, or NPK.

Mix a weak solution of the fertilizing mixture with water in a container (using about one teaspoon of this concentration per quart).

It’s important not to overdo it on your succulents – just apply once every six weeks or so during periods when they’re actively growing!

Potting and Repotting

When an Aeonium succulent is growing in a pot, it may need to be repotted. The frequency will depend on the size of the soil and how much water the plant takes up.

To separate a fully rooted Aeonium undulatum from its original container, gently remove all of the dirt with your hands and shake off as much excess as possible without breaking any roots.

Place some fresh soil into a new pot (potting) and add just enough so that there are no air pockets left when slightly compressed.

Place the Aeonium stem halfway down and cover with more moistened potting mix (making sure to keep about ½” space between soil level and rim). Press around the edges firmly with handcuffs.

Give this Aeonium around two weeks before watering again because separating them from their original root system can be a little stressful.

Pruning

An Aeonium undulatum can grow into a large mound of rosettes – it’s a good idea to trim the plants for them not to get too crowded or overtake other succulents.

It is best to prune your Aeonium at least once every year, but they don’t need regular cutting back, and a trim a couple of times a year is fine.

Only cut off rosettes that are looking unhealthy or dead. It’s best to leave the healthy ones be and not risk propagating a fungus or some other disease with your clippers.

Pests and Diseases

There are a few pests and diseases that you should be aware of if growing Aeonium undulatum.

The most common pests are:

  • Snails (Aeonium undulatum can be a host for slugs)
  • Whiteflies
  • Mealybugs
  • Scale insects

The most common disease that Aeonium undulatum is susceptible to is stem rot.

This will happen if the plant has been watered with water that isn’t clean or too many watering cycles in a row without letting it dry out between each cycle.

Symptoms include browning, wilting, and graying at the tips of leaves on top of a blackened root system.

There’s not much you can do besides pot up healthy cuttings from the plant and try to nurse it back to health while also keeping an eye out for any signs of new infections.

How to Care for Aeonium Undulatum in Winter

Aeonium undulatum winter care is a little different from other succulent plants. 

This plant needs a lot of light, so you should keep it in a bright location with lots of sun exposure. 

You should also keep Aeonium undulatum out of drafty areas to prevent it from drying.

The Aeonium undulatum does not handle cold temperatures well.

The best way to keep Aeonium undulatum alive in cold temperatures is by bringing it inside or wrapping the plant with a cloth and placing it near a window where there’s plenty of sun exposure.

You should also remove any dead leaves from your succulent plant during springtime. This will make sure that all parts are receiving enough light.

How To Propagate Aeonium Undulatum (Stalked Aeonium)

Aeonium undulatum can be propagated by cuttings, leaves, offsets, or seeds.

Cuttings

To propagate aeonium undulatum by cutting, take a healthy offshoot (branch) and remove any flowers or leaves.

Cut the branch near a leaf joint with a clean cut to avoid damaging the plant’s vascular system.

Allow the Aeonium cuttings to dry in a shaded area for one day before potting up into a soilless mix that will keep water from pooling around the base of the stem.

Water sparingly until new growth appears, then regular watering is recommended.

Propagation takes an average of three to six weeks when appropriately done but may take as long as twelve months if not handled correctly.

Leaves

Aeonium undulatum can also be propagated from a leaf.

Take a healthy, non-flowering leaf and remove the petiole or stem with a clean cut.

Allow it to dry for a day before potting up into soil without any fertilizer in a well-lit area with plenty of air circulation.

It is best to water the succulent very sparingly until new growth appears. Once new growth appears, it is best to water regularly.

It takes an average of one to four weeks for succulents to propagate from leaves when done correctly. Still, it may take as long as twelve months if not handled properly.

Offsets

Aeonium undulatum can also be propagated by offsets, a plant that grows along the ground from a mature rosette.

Take a healthy offset (not too shaggy) with its roots intact and pot into a soilless mix without any fertilizer in a well-lit area.

The best way to water succulents when propagating through offsets is avoiding all watering until new growth appears, then sparingly but regularly after that.

This process takes an average of one to three weeks for succulent propagation through offsets when done correctly though sometimes up to a year.

Seeds

Aeonium undulatum also produces a seed pod that can be germinated to produce a new plant.

Take a healthy, mature (not old and dried) seed pod and extract the seeds with a clean-cut as close to the pod’s base as possible.

Allow it to dry one day before potting up into a soilless mix without any fertilizer in a well-lit area without too much air circulation.

The best way to water aeonium undulatum when propagating through seed is a controlled approach. Too much water will dampen the soil, and too little water can cause a lack of oxygen to inhibit germination.

Allow it to dry out before watering again. Then, regular watering is recommended after new growth appears.

Propagation through seed takes an average of six weeks when appropriately done but may take up to a year if not handled correctly.

Aeonium undulatum care is essential for propagation success.

Ensure that any cuttings, leaves, offsets, or seeds are healthy with no flowers or leaves attached.

They must be moist without being wet and have enough light exposure (at least one side of the plant) in order to grow properly.

Is the Aeonium Undulatum Toxic?

The Aeonium undulatum is not toxic to humans or animals.

However, some people are allergic to the plant’s sap, so it is best not to touch an Aeonium unless you have a glove on your hand. 

Final Thoughts

Aeonium undulatum care and propagation can be a fun and rewarding hobby.

In addition, Stalked Aeonium plants are a beautiful and rewarding addition to a garden.

They’re easy to care for and bloom with bright colors that add a pop of color in the winter months when most other flowers have died away.