Eucalyptus Care

June 19 2025, 12 min reading time

The Eucalyptus, also known as the gum tree or eucalyptus tree, is a graceful and popular plant that is often used as a garden plant because of its unique appearance. The silver-blue tinted leaves and the characteristic fragrance make this plant a real eye-catcher in any garden or on the terrace. In addition, the Eucalyptus grows quickly, allowing you to enjoy an impressive green element in a short time. But how do you actually care for this special plant? In this comprehensive blog, you can read everything about proper care, from watering to recognizing and treating diseases.

Watering a Eucalyptus

A Eucalyptus prefers a slightly drier location, but that does not mean you should let it suffer from thirst. Young plants, in particular, need sufficient moisture to root and grow properly. When watering, it is important to take into account the season, the location of the plant (open ground or pot), and the age of the Eucalyptus. Watering in open ground:

Water young plants 1–2 times a week during the first growing season, depending on the weather.
During drought or extreme heat, you may water more frequently.
Older Eucalyptus plants are more resistant to drought and can often go for longer periods without water.

Watering Eucalyptus in a pot:

Potted plants dry out faster and therefore need water more often.
Regularly check if the top 2–3 cm of the potting soil is dry.
Ensure good drainage, as wet feet can cause root rot.

Pay close attention to the leaves: if there is a lack of water, they become dull and droop. sleep.

Eucalyptus Location

The right location is essential for a strong and healthy Eucalyptus. This plant is originally accustomed to sun-drenched, open plains and feels best in a spot where it receives plenty of light and air. Important points to consider regarding the location:

Choose a spot in full sun, preferably where the plant receives at least 6 hours of direct sunlight daily.
Ensure a sheltered location, out of the cold east wind, especially in winter.
Preferably plant the Eucalyptus in well-draining soil. A mixture of sand and compost works well.
Avoid areas with wet, heavy clay soil or standing water.

A spot that is too shady causes the Eucalyptus to grow less well and suffer from diseases more quickly.

Moving a Eucalyptus

Moving a Eucalyptus is possible, but do so carefully. Due to rapid growth, the plant develops a powerful root system that is difficult to move without damage.

Tips for successfully moving your Eucalyptus:

The best time is early spring or autumn, when the plant is dormant.
Dig a spacious hole around the roots and try to keep the root ball as intact as possible keep.
Place the plant directly in its new spot and water generously.
Optionally add some compost to the new planting location to facilitate the transition.
After transplanting, it is advisable to prune the plant back slightly to limit evaporation.

Keep a close eye on the plant during the first few weeks and provide extra water if necessary.

Planting Eucalyptus

Planting a Eucalyptus requires a careful approach, especially given the specific needs of this tree or shrub. Whether you want to plant it in a pot or in the open ground, it is important to make the right preparations.

Step-by-step plan for planting Eucalyptus:

Choose a sunny and sheltered spot with good drainage.
Dig a planting hole that is at least twice as wide and deep as the root ball.
Mix the excavated soil with compost or potting soil for an airy structure.
Place the plant in the hole, at the same height as in the pot.
Press the soil down firmly and water generously immediately.

Note regarding potted plants:

Use a spacious plant pot with holes in the bottom.
Choose airy, nutritious potting soil and replace it annually.
Repot every 1–2 years for sufficient space.

Eucalyptus Flowering Time

The flowering of a Eucalyptus is less well-known, but certainly no less special. In the right climate and with sufficient care, the plant can produce flowers.

The flowering period is usually in the summer, often between June and August.
The flowers are small, white to cream-colored, and appear in plumes or clusters.
In our climate, flowering is not guaranteed; It occurs mainly in older and well-rooted specimens.
The flowers are loved by bees and other insects and can contribute to the biodiversity in your garden.

Although flowering is not the main reason to plant a Eucalyptus, it is a nice bonus for those who are patient.

Eucalyptus Toxic

Eucalyptus is a beautiful plant, but unfortunately also toxic. Both the leaves and the essential oils contain substances that can be harmful to humans and animals.

For dogs and cats:

Ingestion of leaves or gnawing on branches can lead to nausea, vomiting, diarrhea, or lethargy.
In more severe cases, respiratory problems may also occur.
Therefore, place Eucalyptus plants out of reach of curious pets, especially puppies and kittens.

For humans:

The oil and fresh leaves are not suitable for consumption without processing.

Wear gloves when pruning and wash your hands thoroughly afterwards.

Pruning Eucalyptus

Although a Eucalyptus grows quickly, pruning is essential to keep it beautiful and healthy. It stimulates the formation of new shoots and prevents the plant from becoming too large or too unruly.

Preferably prune in early spring, before growth resumes.
Remove dead or damaged branches and, if necessary, prune back to the old wood.

👉 Read our extensive blog about Pruning Eucalyptus for more tips.

Eucalyptus Cuttings
Do you want to grow more Eucalyptus plants yourself? Then taking cuttings is a fun and educational method. Although it is not always easy, with the right approach it often works out just fine.

Stepping Plant Eucalyptus:

In the summer, take cuttings of 10–15 cm from semi-woody material.

Remove the lower leaves and cut off the bottom at an angle.

Dip the cutting in rooting powder for better root formation.

Place the cuttings in moist cutting soil in a pot or propagator.

Cover with plastic or a grow hood and place in a light, warm spot.

Keep the soil moist, but not wet.

After a few weeks, the first roots may develop. As soon as the cuttings have rooted well, you can repot them or plant them out outdoors.

Fertilizing Eucalyptus

A Eucalyptus naturally grows quickly, but with the right fertilization you support that growth and prevent deficiencies.

Use an organic fertilizer with a high nitrogen content in the spring.
Preferably fertilize 1–2 times a year: in early spring and possibly once more in the summer.
Avoid fertilizers with high phosphate content, as these are not ideal for this plant.

Note: over-fertilization can lead to root burn or leaf problems.

Eucalyptus Snails

Unlike many other garden plants, Eucalyptus is not particularly fond of snails. However, young plants can sometimes fall victim to feeding damage.

Protect young Eucalyptus plants, especially in the spring.
Use ecological slug pellets or lay barriers such as cocoa shells or copper tape.
Check regularly for slug traces and remove any slugs with the hand.

Mature plants are generally less attractive to slugs and suffer little from damage.

Eucalyptus Diseases

Eucalyptus is generally a strong and healthy plant, but even it can be affected by diseases or pests.

Common problems:

Fungi, such as mildew or rust, especially in wet and humid weather.
Aphids or leaf bugs, which can cause damage to leaves.
Root rot in overly wet soil.

Prevention is better than cure: ensure airy soil, a sunny spot, and sufficient distance from other plants.

Eucalyptus Red Leaves

Red leaves on a Eucalyptus can have various causes:

New growth: Young leaves can be naturally red or purplish. This is normal and disappears as the leaf ages.
Cold or stress: Cold nights or sudden temperature fluctuations can cause leaf discoloration.
Nutrient deficiency: A lack of magnesium or nitrogen can also cause red leaves.

Check the location and soil conditions if you see red leaves appear.

Eucalyptus Brown Leaves

Brown leaves are usually a sign that something is wrong with the care of your Eucalyptus.

Possible causes:

Too much or too little water.
Poor drainage or wet roots.
Too much sun without the plant receiving sufficient water.
Fungal infection or other disease.

Cut away affected leaves and check if the plant is in the right place with sufficient air and light.

Why is my drying out Eucalyptus drying out?

If you notice that your Eucalyptus is drying out, it is important to find out what the cause is.

Possible causes of dry Eucalyptus:

Too little water, especially in warm weather or in a pot.
Poor root development, for example after transplanting.
Wind or strong sun, without sufficient protection or water.
Potting soil that does not retain moisture well.

Feel the soil, check the foliage, and adjust the watering and care regime as needed.

The Eucalyptus is a versatile and striking garden plant that, with the right care, will last for years. From watering to location, and from pruning to diseases: it pays to get to know this plant well. By intervening in time when problems arise and providing it with the right conditions, you will enjoy this beautiful plant to the fullest. Let your garden shine with a healthy Eucalyptus!