Cucumber tree
Magnolia acuminata · Magnoliaceae
📷 Bruce Marlin · CC BY 3.0
The gardener's calendar
In autumn, ease off feeding and take the chance to clean up around cucumber tree and prepare for winter.
ID card
- Scientific name
- Magnolia acuminata
- Family
- Magnoliaceae
- Form
- Large tree
- Foliage
- Deciduous
- Flowering
- April to May
- Flowers
- Yellow-green, tulip-shaped
- Mature height
- 12 to 15 m
- Hardiness
- Very hardy (-25 °C)
- Origin
- North America
- Growth
- Moderate
- Soil type
- Rich, well-drained, slightly acidic
✓ Taxonomy verifiedSource: AI estimate · hardiness: reliability high.
Expert tips
The key tip
Acuminate magnolia grows slowly in its first years: patience is key. Mulch generously to maintain soil moisture and regulate soil temperature.
The common mistake
Planting in compacted or poorly drained soil causes root asphyxiation and stunted growth, often irreversible.
The pro's trick
Enrich the planting hole with acidic compost or peat: magnolias love slightly acidic, well-structured soils.
Care
Light and exposure
The cucumber tree magnolia thrives in full sun (at least 6 hours of direct sunlight daily). It tolerates partial shade in very hot regions, but flowering will be more abundant and earlier in a sunny location. Plant it away from strong winds that can damage its young flowers.
Regular watering
Water regularly during the first year after planting to promote root establishment. Once established, this tree tolerates moderate drought well, but appreciates generous watering during active growth periods (spring and summer). In case of prolonged drought, increase watering frequency.
Soil preparation and maintenance
Prepare soil rich in organic matter, well-drained and slightly acidic to neutral. Amend the planting hole with mature compost or peat. A 5 to 8 cm mulch layer around the trunk retains moisture and protects the magnolia's shallow roots.
Pruning and trimming
Pruning is generally not necessary. Intervene only to remove dead, diseased or poorly oriented branches, ideally after flowering (June). Avoid severe pruning, which heals poorly on magnolia and prefer gentle cuts that respect its natural shape.
Moderate fertilizing
An annual application of well-decomposed compost is sufficient. In spring, you can enrich the soil with a balanced organic fertilizer (NPK) to support growth. Avoid excess fertilizer, which can reduce hardiness and promote disease.
Pests and diseases
The cucumber tree magnolia is generally very resistant to diseases. Occasionally, scale insects or spider mites may attack it in dry conditions. Regularly inspect the foliage and treat if needed with gentle methods (misting, insecticidal soap) before considering chemical solutions.
Did you know?
The cucumber tree magnolia is one of the oldest flowering tree species in North America: its ancestors date back over 100 million years. Its name 'acuminata' means 'pointed' in Latin, referring to the tapered shape of its leaves. In spring, before leaves appear, its discreet yet delicate yellow-green flowers give the tree an early and serene elegance.
Where to buy it
Best planted in autumn so the roots settle in before summer, or in early spring once the frost has passed. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, October, November.
Add this plant to my garden →Plants from the same family
- Tulip treeLiriodendron tulipifera
- Southern magnoliaMagnolia grandiflora
- Kobus magnoliaMagnolia kobus
- Fig magnoliaMagnolia figo
- Lily magnoliaMagnolia liliiflora
- Magnolia laevifoliaMagnolia laevifolia
Tips generated and checked by Viridia — adapt them to your local climate.