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SUMMER 2010
Polypodiums are among the easiest ferns to grow, being tolerant of sun and dry conditions, as well as shade - in fact the only place they will not grow is in waterlogged soil. They are wintergreen - that is, they lose their old fronds in May/June and put up fresh ones which stay looking good right through the summer, autumn and winter, only beginning to look ragged in spring. They will all spread slowly to give a dense mat of fronds between 10-40cm high depending on variety. The australe types put up their new fronds a few weeks later than the other types. Polypodiums should be planted with the rhizome at or just below soil level, and can be anchored temporarily with a hoop of wire or similar until a new root system is formed. Old fronds can be removed at the end of May just before the new ones emerge on the earliest varieties, but if left on, they can be gently raked out with the fingers later as they shed naturally. Our polypodiums are available mail order all year round as they will be lifted and posted bare-rooted and damp-packed. The best time to order is in late April to early May when they are losing their old fronds , but we do pack very carefully to minimise any potential damage. DELIVERY CHARGES 1-3 plants £4-00. 4-6 plants £6.00. 7 or more plants £9.00 Can combine with bulbs.
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| Polypodium australe | More properly called P. cambricum, but I am retaining this name to avoid confusion with the plumose, sterile varieties listed below. This is a striking species with broad flat pinnate fronds with a spiky appearance. It is later to produce its new fronds than most others. Always admired in our garden. 40cm high. | £3.50 |
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| Polypodium australe 'Cambricum base form' | This is the sterile, plumose form of australe, unfortunately it was the first form named and as such should be used as the type to which the name belongs, however since it is sterile, it should not be given specific status. All the cambricums have three-dimensional fronds because the pinnae are slightly twisted. This basic form has expanded, cut pinnae which are quite thin in texture. Slow growing. 20-25cm high. | £8.00 |
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| Polypodium australe cambricum group 'Prestonii' | The fronds are quite narrow and the pinnae are broad and not as deeply cut. Because the pinnae are reduced near to the stipe, there appear to be 'holes' in the frond close to the mid-line. 20-30cm. | £7.00 |
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| Polypodium australe cambricum group 'Wilharris' | The narrow fronds have less deeply cut pinnae than the other cambricum types, giving it a more solid appearance. 20-30cm. | £7.00 |
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| Polypodium australe 'Macrostachyon' | This is a variety of the above which has the ends of the fronds drawn out into a long point, giving it a very distinctive appearance. To 30cm. | £3.50 |
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| Polypodium australe (Semi-lacerum group) 'Falcatum O'Kelly' | With a name impossible to fit onto a 4" label, this is a distinctive fern. The lower pinnae are cut (semi-lacerum), and the upper ones curve inwards (falcatum) to produce a fish-tail effect. 30-40cm high. | £4.50 |
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| Polypodium australe 'Semi-lacerum Jubilee'' | This is a very old variety with the lower pinnae cut and overlapping. 30-40cm high. | £5.00 |
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| Polypodium australe 'Semi-lacerum Robustum' | This is a vigorous variety with the lower pinnae cut. 30-40cm high. | £4.00 |
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| Polypodium cambricum 'Richard Kayse' | A very beautiful and distinctive fern with a remarkable history. The original plant was found in south Wales in 1668, and rediscovered in the same locality in 1980. A small piece was brought into cultivation and all plants are derived by division from this, and therefore, since it is sterile, are parts of the original 400 year old plant. As grown, it has flat fronds up to 12" tall with very deeply cut overlapping pinnae giving it a very spiky appearance. | £10.00 |
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| Polypodium glycyrrhiza ''Longicaudatum' | This is the equilalent to 'Macrostachyon' in this American species, bipinnatifid with a long drawn- out frond tip. 20-25cm. | £5.00 |
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| Polypodium glycyrrhiza 'Malahatense' fertile | Similar to the species, but with the bipinnatifid pinnae more deeply cut. 20-30cm. | £4.50 |
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| Polypodium vulgare 'Elegantissimum' | This is a rare variety of the common polypody, which produces on the same plant fronds of three kinds - plain pinnatifid(as species), bipinnatifid, and very finely cut tripinnatifid. Slow to increase. 25-30cm. | £10.00 |
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| Polypodium x mantoniae 'Cornubiense' | One of the easiest and most reliable of the polypodies for general garden use, it produces fronds of two kinds on the same plant - plain and bipinnatifid, often producing the plain ones first. Superb plant for winter foliage interest, and relatively fast to clump-up. 30-40cm. | £3.50 |
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