Common yucca
Yucca filamentosa · Asparagaceae
📷 Sten at Danish Wikipedia · CC BY-SA 3.0
⚠️ Les saponines des feuilles peuvent provoquer vomissements, diarrhée ou abattement chez chiens et chats après ingestion.
The gardener's calendar
In autumn, ease off feeding and take the chance to clean up around common yucca and prepare for winter.
ID card
- Foliage
- Evergreen, lanceolate, blue-green with white marginal filaments
- Flowering
- June to July, white campanulate flowers in upright panicles
- Adult size
- Height 120–150 cm × width 60–90 cm
- Growth rate
- Slow to moderate
- Hardiness
- Excellent, down to –15 °C
- Origin
- Southeastern United States
- Soil type
- Well-draining, tolerant (sandy, rocky, poor)
- Propagation
- Basal offsets or seed
✓ Taxonomy verifiedSource: AI estimate · hardiness: reliability high.
Expert tips
The key tip
Yucca filamentosa thrives in full sun, poor and very well-drained soil, with very little watering.
The common mistake
Automatic watering or moist soil causes rot in the heart of the plant.
The pro's trick
Separate the basal rosettes in spring and replant them in a sandy mix.
Care
Watering
Yucca filamentosa is extremely drought-tolerant once established. Water moderately when planting and during active growth. In very hot summers, occasional watering is sufficient. Cut back drastically in winter and let rain do most of the work.
Light and Exposure
Plant in full sun (minimum 6 hours of direct sunlight daily). A south or west-facing exposure is ideal. Full sun deepens the blue-green foliage and encourages flowering. It also tolerates partial shade but with less vigor.
Soil and Drainage
Yucca demands well-draining, even very permeable soil. Improve heavy soil with coarse sand, gravel, or potting mix. Avoid waterlogged soil, the main cause of root rot. Poor, rocky, or stony soil suits it perfectly.
Pruning and Maintenance
Remove dead or damaged foliage at the base to maintain appearance. After flowering, you can cut back dried flower stems. Avoid pruning the plant's heart. In mild climates, little maintenance is needed.
Fertilization
Yucca requires no regular fertilizer, especially in poor soil. A light application of compost in spring or very modest fertilization (half-strength) during growth periods is plenty to maintain vigor.
Diseases and Pests
Very robust, it resists diseases well when drainage is correct. Watch out mainly for root rot in overly wet soil. Occasionally, mealybugs may attack foliage indoors or under shelter. Treat with soapy water if needed.
Did you know?
Yucca filamentosa was once cultivated by Southeastern American Indians for its fibers, obtained from the leaves, which they used to make rope, baskets, and textiles. Its characteristic white filaments also served decorative purposes. This is why Linnaeus named the species 'filamentosa'—a nod to these essential white appendages that adorn each leaf.
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.
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Tips generated and checked by Viridia — adapt them to your local climate.