When caring for Western sword ferns, provide ample moisture through regular watering, especially during dry spells. Choose a shady or partially shaded area with acidic or neutral soil that drains well. Fertilize monthly during the growing season with a balanced fertilizer diluted to half strength. Prune dead or damaged fronds to encourage new growth. Mulch around the base of the fern to retain moisture, suppress weeds, and regulate soil temperature. Propagate through division in spring or fall, ensuring each division has healthy roots and foliage.