Osmunda cinnamomea, or cinnamon ferns, add garden beds with their clusters of feathery, bright-green fronds and interest. They are among the hardiest and most elastic of fern species, flourishing within U.S. Department of Agriculture hardiness zones 4 through 9. Like many fern species, cinnamon ferns grow best under moist and cool conditions, however they require less care to preserve than many other species also will flourish if supplied with annual feeding soil and light pruning.
Plant cinnamon ferns in which they will get protection and partial shade from strong wind. Amend the soil with a layer of pine bark or mildly acidic compost before planting the fern. Mix the change into the soil to a thickness using a fork.
Dig a planting hole that is equivalent in dimension to the cinnamon fern’s original nursery container. If planting multiple ferns space the holes. Settle the fern into press and the hole the surrounding soil in around the root ball. Run water at the bottom of the fern.
Distribute a 1/4-inch layer of pine needles or cracked walnut leaves in a radius. Replace the mulch in early spring after the last hard frost.
Water cinnamon ferns at least weekly. Run water at the bottom of this fern until the soil feels moist at a thickness of 1 inch. Mist the fronds with water to keep them hydrated. Boost misting and watering during hot, humid weather. Cease snacking.
Once growth starts to emerge, feed cinnamon ferns in spring. , 14-14-14 ratio mulch into the soil at this plant’s bottom. After feeding it to disperse the fertilizer throughout the 14, water the fern greatly.
Prune old, withered fronds in autumn after the first frost. Snip off the spent fronds at the bottom using pruning shears. Discard the fronds or cut them into pieces that are little, and apply them to mulch around the base of the plants.