European Boxthorn Care
Lycium europaeum
A shrub native to the Mediterranean climate that loves full sun and is extremely tolerant of drought, salinity and calcareous soils. With its thorny structure it is used for natural hedges, dry landscaping and erosion control; the fruits are edible.
Monthly care calendar
Timings are for a temperate Northern Hemisphere climate. In warmer areas tasks start earlier, in colder areas later; in the Southern Hemisphere shift them by six months.
- Pruning: Work carefully, as the plants are thorny. This is the ideal time to remove dead, diseased and crossing branches.
- General care: Mature branch cuttings can be taken for propagation.
- Pests & diseases: General check for pests under the bark.
- Frost risk: In hard and prolonged frosts, cover the root zone with mulch or dry leaves; also protect young plants. It is damaged below about -10 °C.
- Pruning: Finish pruning by the end of the month.
- General care: The area can be cleaned up.
- Frost risk: In hard and prolonged frosts, cover the root zone with mulch or dry leaves; also protect young plants. It is damaged below about -10 °C.
- Watering: Not needed. Spring rains are sufficient.
- Fertilizing: Optional, in very poor soils: slow-release balanced NPK (10-10-10) or compost, to the soil, 15-20 g/m²; do not overapply.
- Pruning: Prune just before the shoots break. Because flowers form on this year's new shoots, hard pruning increases flowering.
- Plant protection: Not needed if there are no signs of pests.
- General care: A suitable time for planting new seedlings.
- Pests & diseases: Observe the new shoots for the possibility of aphids (Aphidoidea).
- Frost risk: It is very resistant to late frosts.
- Watering: Not needed except for newly planted seedlings (5 L/week as the soil dries out).
- Plant protection: If aphids are seen, apply neem oil or soapy water made with Aleppo soap, at the label dose.
- General care: Clear weeds.
- Pests & diseases: Check for aphids and possible gall mites.
- Plant protection: If signs of powdery mildew (white powder) appear in humid conditions, use a sulfur-containing fungicide at the label rate.
- General care: Flowering period.
- Pests & diseases: Watch the leaves for powdery mildew (Erysiphales).
- Watering: In a long drought, water deeply once a month.
- General care: The fruits begin to form.
- Pests & diseases: In hot and dry weather, check the undersides of the leaves for spider mites (Tetranychidae).
- Watering: In midsummer, deep watering every 15-20 days is enough. Established plants (over 2 years old) do not need watering in most years. Water the area around the roots to a depth of 15-20 cm.
- General care: The fruits begin to color.
- Watering: In midsummer, deep watering every 15-20 days is enough. Established plants (over 2 years old) do not need watering in most years. Water the area around the roots to a depth of 15-20 cm.
- General care: Ripening fruits can be harvested and are attractive to birds.
- Pests & diseases: Watch for bird damage to the fruit.
- Watering: In a long drought, water deeply once a month.
- General care: Fruit harvest continues. Propagation by semi-hardwood cuttings can be done.
- Pests & diseases: Check the general health of the plant.
- Pruning: Light shaping pruning can be done.
- General care: Leaf fall begins; fallen leaves can be collected.
- General care: Collect fallen leaves; many disease agents and pests overwinter under leaves.
- Pruning: Not needed. Wait for the main pruning period, January to February.
- General care: It is in full dormancy.
- Frost risk: In hard and prolonged frosts, cover the root zone with mulch or dry leaves; also protect young plants. It is damaged below about -10 °C.
The care advice on this page is general and for information only; it is not professional advice. Plant age, soil and your garden’s microclimate can change the outcome. Plant protection products are mentioned only as general information; they are regulated, and the choice, dose and timing must be decided by a qualified professional under local rules. Consult a landscape architect or agronomist before applying.
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