Holm oak (Quercus ilex)
Care, watering, light and tips for Holm oak on Floravia.
Quick facts
- Family: Fagaceae
- Difficulty: Easy to care for
- Watering: every 7 days
- Light: Partial shade
- Temperature: 10–30 °C
- Toxicity: Toxic to pets
About Holm oak
Quercus ilex, commonly known as Holm Oak or Evergreen Oak, is a majestic evergreen tree native to the Mediterranean region, valued for its dense, dark green foliage. Its leathery, small leaves, often with spiny margins on young specimens, give it exceptional resilience. It is ideal for creating tall hedges, as a standalone specimen in large gardens, or for reforestation due to its great adaptation to dry and hot climates.
Native range
Mediterranean Region
Care tips
Holm Oak thrives in full sun, though it tolerates some partial shade; it needs direct exposure for optimal growth. It is extremely drought-tolerant once established, so watering should be moderate and infrequent, especially in summer. It prefers well-drained soils, from sandy to clayey, and tolerates poor, calcareous, or slightly acidic soils. A common mistake is overwatering in heavy soils, which can lead to root rot.
How to save a dying Holm oak
- Warning signs
- Yellowish or brown falling leaves, lack of growth, dry branches. Could be water stress or ink disease.
- First aid
- Check watering (neither too much nor too little), improve soil drainage and aeration. Remove dry branches. Apply fungicides if Phytophthora is suspected.
- What kills it
- Constant waterlogging (promotes ink disease) or prolonged drought. Soil compaction.
- Can it be saved?
- Yes, if you act quickly. Recovery is slow. Monitor for new shoots.