Dryopteris borreri
Dryopteris borreri · Dryopteridaceae
The gardener's calendar
Ideal time to plant dryopteris borreri: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Foliage
- Semi-evergreen to evergreen depending on climate
- Mature size
- 24 to 32 inches tall, 18 to 24 inches wide
- Growth
- Moderate
- Hardiness
- Down to approximately -15 °C
- Origin
- Western and central Europe
- Soil type
- Humus-rich, well-drained, slightly acidic
Care
Watering
Keep the substrate moist but not waterlogged throughout the year, especially during the growing season. Reduce slightly in winter. Mist the foliage regularly to increase ambient humidity, a condition this fern particularly appreciates.
Light
Place the fern in shade or dappled light. It tolerates semi-shaded exposure with a few indirect morning rays. Avoid direct sun, which would scorch the delicate fronds.
Soil and substrate
Use soil rich in organic matter, slightly acidic and very well-drained. Improve the planting soil with compost or peat to recreate its natural forest habitat.
Fertilizing
Apply diluted balanced fertilizer every 15 days during growth periods (spring-summer). Reduce or stop in fall and winter. Ferns have moderate needs; avoid excess feeding which can damage the rhizomes.
Maintenance and cleaning
Remove dried or damaged fronds regularly at the base to encourage new growth. Gently clean the foliage with a damp cloth to remove dust without damaging the fronds.
Preventing problems
Watch for spider mites and scale insects in dry conditions; maintain sufficient humidity. Overly moist soil can cause rhizome rot; improve drainage if needed. Regularly air out the foliage to prevent fungal diseases.
Did you know?
Dryopteris borreri is named after English botanist William Borrer (1781-1862), a major figure in the study of British ferns in the 19th century. This fern was once confused with Dryopteris affinis until detailed morphological studies distinguished them definitively, demonstrating the importance of precise botanical observation even for common species.
Where to buy it
Plant in spring or early autumn, avoiding spells of intense heat. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, April, May, September.
Add this plant to my garden →Plants from the same family
- Scaly Male FernDryopteris affinis
- Soft shield fernPolystichum setiferum
- Sword fernPolystichum munitum
- Autumn fernDryopteris erythrosora
- Japanese holly fernCyrtomium falcatum
- Asian netvein hollyfernCyrtomium fortunei
Tips generated and checked by Viridia — adapt them to your local climate.