| Adiantum × mairisii | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Division: | Polypodiophyta |
| Class: | Polypodiopsida |
| Order: | Polypodiales |
| Family: | Pteridaceae |
| Genus: | Adiantum |
| Species: | A. × mairisii
|
| Binomial name | |
| Adiantum × mairisii T.Moore
| |
| Synonyms | |
|
Adiantum capillus-veneris 'Mairisii' | |
Adiantum × mairisii (/adiˌantəm bʌɪ mɛːɪsɪˌʌɪ/)[1] (also known as Mairis maidenhair fern) is a species of fern in the family Pteridaceae.
Taxonomy[edit]
This species is a sterile hybrid between the southern maidenhair (Adiantum capillus-veneris) and another unknown species. The species is hypothesised to be:
- Adiantum raddianum
- Adiantum aethiopicum
- Adiantum cuneatum
This species is more frost-resistant than either of its parents.[2][1]
Discovery[edit]
Thomas Moore, who collected ferns during the Victorian period named the hybrid in the second half of the 19th century. It was described in his book, titled: "Nature-Printed British Ferns".[2][3]
Cultivation[edit]
This species has gained the Royal Horticultural Society's Award of Garden Merit.[4]
The reason why this fern species is popular is due to its winter-hardiness relative to other species in the genus. The UK hardiness rating is H5, while the USDA zone range is 8-10.[4]
Soil[edit]
This plant thrives in organic soils under partial shade, although it can also grow in sand or clay. The soil should be light, moist, rich and well-drained.[2][1][4]
Foliage[edit]
In mild climates, this hybrid is evergreen. But in colder climates, it may defoliate throughout the winter. In spring, new fronds may form, where it is recommended to be pruned.[4][2]
Plants and diseases[edit]
This species is generally not susceptible to pests and diseases.[4]
References[edit]
- ^ a b c "Adiantum x mairisii (Hardy Maidenhair Fern, Mairis's Hardy Maidenhair Fern, Mairis's Maidenhair Fern) | North Carolina Extension Gardener Plant Toolbox". plants.ces.ncsu.edu. Retrieved 2021-07-21.
- ^ a b c d "Pacific Horticulture | Pacific Plant Promotions: Adiantum xmairisii". Pacific Horticulture. Retrieved 2021-07-21.
- ^ "Nature-Printed British Ferns: Being Figures and Descriptions of the Species and Varieties of Ferns Found in the United Kingdom". www.metmuseum.org. Retrieved 2021-07-21.
- ^ a b c d e "Adiantum x mairisii | Mairis maidenhair fern/RHS Gardening". www.rhs.org.uk. Retrieved 2021-07-21.