Light
Bright indirect • approx. 10,000–20,000 lux





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Nephrolepis cordifolia 'Duffii' at a glance:
Nephrolepis cordifolia 'Duffii', usually called Lemon Button Fern, wins on compactness and leaf shape, carrying small rounded leaflets along arching fronds that look softer and more playful than a standard sword fern. That makes it especially good for desks, terrariums, narrow shelves, and other small spaces where a full Boston fern would immediately feel oversized. It is also more tolerant of average home humidity than many ferns, which is a major advantage for growers who want lush green texture without building an entire humid microclimate first. Keep the substrate lightly moist, protect it from strong direct sun, and it stays dense, fresh, and easy to manage. Because it is pet-safe as well, 'Duffii' fits comfortably into everyday living spaces. For a fern that feels accessible, tidy, and charming rather than demanding, Lemon Button Fern is hard to fault.
Light
Bright indirect • approx. 10,000–20,000 lux
Water
Water when ~10–20% dry
Substrate
Moisture-retentive but aerated • Evenly moist • Organic-leaning • Fine-medium
Temperature
Ideal: 18–24 °C • Avoid below: 10 °C
Humidity
Moist 50–60 %
Growth habit
lithophytic/epiphytic fern
Support
not needed
Growth speed
High
Max size indoors
Max. height: 30 cm • Max. spread: 30 cm
Toxicity & safety
Non-toxic & Pet Friendly
Origin & habitat
Cultivar of Nephrolepis cordifolia
These metrics are standardised reference points. We compile them by reviewing and cross-checking multiple botanical and horticultural references, then refining them through real-world growing experience. Source links: Plant Care Resources.
Please use the values as guidance. Conditions vary by home, so the same plant can respond differently. For plant-specific context, read the full product description and browse our Plant Care Guides.
Your new plant has just travelled a long way and needs a calm start in its new home. For step-by-step unboxing and first-week care, check our after-delivery care guide. For deeper tips on how your plant settles in over the next weeks, read our houseplant acclimatization guide.
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