They prefer anywhere from part sun to full shade and will develop better color with ample light exposure. Most of the plants in the trade circulating as D. As if all this display were not enough it produces bright red sori on the frond reverse in late summer. The young fronds of Brilliance Autumn fern emerge a wonderful. Cold weather brings a hint of russet to this peerless evergreen. Dryopteris erythrosora Brilliance Autumn Fern is a form that is brighter than the species. Exotic red to coppery-pink croziers unroll into pinkish honey-green fleshy fronds which mature to a rich leathery green. erythrosora: A spectacular and reliable fern from Japan which more than lives up to its pseudonym with a sensational display of color. It still sports the same intense pink, red and orange hues on the new growth when developing fronds are exposed to ample light, and literally the only discernible morphological difference is the color of the sori. This has become very popular in the trade, but the name is somewhat confusing as it suggests that somehow the color of the foliage is different or more intense than the traditional Autumn Fern, but this is not the case at all. It grows along roadside under pine, oak, and blackjack tree canapies. This strong, Japanese Shield Fern grows well in our sub-tropical area in Angelina National Forest. On Mar 29, 2005, SudieGoodman from Broaddus, TX (Zone 8b) wrote: Sudie Goodman, Zone 8b, Broaddus, Southeast TX. erythrosora, and this is actually a subspecies that has had a cultivar name applied to it. A gorgeous fern for a shaded area in a warm climate. This is another form of the ever-popular Autumn Fern with one very slight difference: the spore casings on the backside of the fronds, known as sori, appear white instead of the typical red that is characteristic of D.
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