The olive tree is one of the most beloved and versatile trees in Mediterranean flora. And the good news is that you don't need a large garden to have one: a potted olive tree is perfectly viable if you know its basic needs. In this guide, we explain everything you need to know, from choosing the variety to the most common problems.
Which olive variety to choose for a pot?
Not all varieties adapt equally well to living in a container. These are the most recommended:
- Arbequina: the most popular for pots. Small size, very productive, and hardy. Ideal for terraces and balconies.
- Picual: more vigorous, needs large pots. Very resistant to cold, perfect for the interior of the peninsula.
- Koroneiki: of Greek origin, very decorative and compact. Withstands drought and heat well.
- Bonsai or wild olive: for purely decorative use. It grows very slowly and is ideal for small spaces.
The ideal pot and substrate
The most common mistake when growing olive trees in pots is using a substrate that is too compact or a pot without sufficient drainage.
- Pot size: start with a pot at least 40-50 cm in diameter. Every 3-4 years, transplant it to a slightly larger pot.
- Substrate: mix universal substrate with 30% coarse sand or perlite to ensure drainage.
- Drainage: place a layer of gravel at the bottom. The saucer should always be emptied after watering.
- Material: terracotta is ideal because it breathes and regulates moisture.
Watering: less is more
Overwatering is the main enemy of the potted olive tree.
- Spring and summer: water when the first 3-4 cm of substrate are dry.
- Autumn: reduce watering progressively; once a week is usually sufficient.
- Winter: minimal watering, every 10-15 days.
Fertilizing
- Spring (March-May): balanced fertilizer rich in nitrogen (NPK 20-10-10).
- Summer (June-August): fertilizer with more potassium (NPK 10-10-20) to ripen the fruit.
- Autumn: fertilizer rich in potassium and phosphorus to strengthen roots.
- Winter: do not fertilize.
Pruning
- When: spring, before it sprouts vigorously (March-April).
- What to remove: crossed branches, suckers, and dry or diseased branches.
- How much to cut: never more than 20-30% of the canopy in a single pruning.
Common problems
- Peacock spot: fungal disease with yellow spots on leaves. Treat with copper fungicide.
- Scale insects: sticky honeydew on branches. Treat with neem oil.
- Yellow leaves: overwatering or iron chlorosis. Apply iron chelate.
The olive tree according to your climate
- Mediterranean coast and Andalusia: ideal conditions, outdoors all year round.
- Madrid and Castile: protect it with frost cloth if there are hard frosts.
- Galicia and northern Atlantic: place the pot under a roof in winter.
- Pyrenees and mountains: bring it indoors when temperatures drop below -5°C.
- Canary Islands: excellent conditions all year round.
Do you want to start with a well-established nursery olive tree? You can buy an olive tree directly from our online store with home delivery. And if your olive tree isn't doing well and you don't know why, our Online Garden Coaching gives you an action plan in 60 minutes. No theory, no beating around the bush.
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