Note: Production tips are to the best of our knowledge and experience. They are offered for consideration and investigation, but we do not warrant or assure any results.
Uses: Polypodium falax (syn. fallax) is a beautiful interior foliage specimen. It has dark green, glabrous, deeply crested fronds with a semi-cascading presentation. It can also be used in tropical, shaded landscapes.
Containers: Grow in pots 4” – 8”.
Media: High water-holding capacity, good aeration and drainage. Minimum 50% coarse peat, with added perlite and / or composted bark. Any well-drained mix at pH at 5.5 - 6.5 should suffice. ARC Ferns currently uses PBH rather than Perlite in its pot fern mixes.
Light: 1,500 – 2,500 FC. Filtered light in landscape morning and evening. Will burn severely by direct light.
Fertilizer: Constant feed, 100 - 150 PPM nitrogen, with a balanced fertilizer. Slow release fertilizers are not recommended.
Temperature: Best production temperatures should be 65 - 75 F. Plants will be severely damaged by frost and are also not very tolerant of excess heat (90 F and up).
Water: Prefer moist media but dryer foliage.
Growing Time: From a 72 cell plug, 8 - 12 weeks for a 4”, 16 –20 for a 6”.
Disease: These ferns have a propensity for fungal leaf spot under excessively warm & humid conditions. We recommend ample spacing to maximise airflow. Final production spacing should be no more than 3 plants / sq. ft (4” pots) and 1 plant / sq. ft (6” pots). In summer, fungicide sprays may be needed.