well-balanced formula. Most
perennial ferns are light feeders.
Apply liquid fertilizers at 75-100 parts per million (ppm) on
alternate waterings. Slow
release fertilizers may be applied at rates of 2-3 lbs. per cubic
yard of soil. Do NOT
well-drained mix, which works on most perennials.
The mix should have enough peat to provide good water holding
capacity. Try to avoid
mixes with vermiculite or fine sand, as they tend to plug the air
spaces needed for healthy root growth.
Most grow well in shaded landscapes.
Ferns do NOT
tolerate standing water. Maintain
a constant moist level. Do
not allow them to dry between waterings.
Water early in the day to allow the foliage to dry.
perennial ferns grow best at 5.5-6.5, there are varieties which
prefer neutral pH.
The most prevalent problem found in perennial
ferns seems to be root rot brought on by overwatering or soils which
do not drain well. This
may be controlled by using watering practices, good housekeeping,