Main photo for RHS Lecture -  Podocarpus Collection Page 2


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G. GRAHAM HITCHIN’S CROSSES

P.’Blaze’ (lawrencei x nivalis) – Raised in 1986 this hybrid has orange young growth in spring becoming green to purple-bronze. A compact habit.


P.’Country Park Fire’
(lawrencei x nivalis)

'Country Park Fire', raised in 1985, this hugely popular and attractive female podocarpus forms a low spreading shrub. The young growth is creamy- yellow then becoming salmon-pink and slowly turning green in summer. In winter the foliage is a rich purple-bronze. If secondary new growth emerges in late summer you can get all three colours at once.


P.’Spring Sunshine’
(lawrencei x nivalis)

'Spring Sunshine', creamy – yellow new growth with a pink tinge. In autumn its foliage is purple-bronze. A first rate ground cover plant.


P.’Flame’
(lawrencei x nivalis)

Male form with yellow and pink young growth in spring. It makes an attractive companion to P.’Country Park Fire’


P. 'Young Rusty'


P. 'Orangade'

 P.’Orangade’ (lawrencei x nivalis) – Female plant with orange young growth in spring and slightly bronze in winter

P.’Young Rusty’ (lawrencei x nivalis) – Free fruiting female with rust coloured leaves.

 

H. SOUTH AFRICAN SPECIES


P. latifolius

P.latifolius – This is the national tree of South Africa and is definitely tender even in Cornwall but will tolerate drier conditions. It is not as attractive as P.henkelii with shorter  more erect leaves.

P.henkelii –‘Henkels Yellowwood’– First grown to reasonable maturity in Cornwall in Tregrehan gardens this dramatic and inspiring plant seems to be fairly wind hardy but not frost hardy beyond -10oC at least in infancy. The new growth flushes quite late in the year and is a brighter shade of green than the mature foliage which adds to its attraction.

 

I. OTHER RELATED PODOCARPACEAE

Afrocarpus falcatus – (formerly Podocarpus falcatus) – a small tree with long narrow leaves from South Africa which is suitable only for the mildest locations but which, so far, is doing well at Caerhays and survived the last cold winter intact.

Dacrydium cupressinium – ‘Rimu’ or ‘Red Pine’ – This is a very attractive ornamental tree with graceful drooping branches which hardly seem real. From a distance it often looks dead because its older branches and leaves look rusty brown. The newer growth is however green. Probably a conservatory plant in most of the UK or perhaps for container growing but the Caerhays plant is now up to around 10 feet outdoors.


Dacrydium cupressinium


Dacycarpus dacrydiodes


Afrocarpus falcatus

Dacrycarpus dacrydiodes (formerly Podocarpus dacrydiodes) – ‘White Pine’ - This peculiar tree is found in the lowlands of New Zealand. It has bronze or green leaves on slender drooping branches and certainly needs staking for the first few years after planting. By reputation this is a tender tree but Graham Hitchens says his has survived minus 150C. All forms in cultivation seem to be male.


Dacrydium franklinii

Dacrydium franklinii – ‘Huon Pine’ (also known as Lagarostrobus franklinii) – This is a large graceful small tree with pendulous branches which can break off from their own weight. Bright green scale like leaves. Our 2 plants at Caerhays and Burncoose both seem to be male.

Halocarpus bidwillii (formerly Dacrydium bidwillii)-’Bog Pine’. A closely branched shrub growing to about 10 feet which is reasonably hardy even if rare. The plant at Burncoose has done just as well in the garden as the one we have retained in the show tunnel for safety. Both are about 4 feet after 15years. This plant would make a good rockery feature.

Microstrobus fitzgeraldii  - a rare evergreen and semi prostrate shrub with tiny, green, overlapping scale like leaves.

Phyllocadus trichomanoides – ‘Tanekaha’ – A large shrub or small tree with a very unusual and distinctive habit. The plant has ovate, fan shaped lobed or entire flattened leaf like stems arranged in attractive fronds.


Saxegothaea conspicua


Phyllocadus trichomanoides

 

Phyllocadus trichomanoides – ‘Tanekaha’ – A large shrub or small tree with a very unusual and distinctive habit. The plant has ovate, fan shaped lobed or entire flattened leaf like stems arranged in attractive fronds.
The young leaf-stems are reddish brown. The plant looks tender but isn’t even if it is very slow growing and peculiar in appearance.


Saxegothaea conspicua – Prince Alberts Yew – A yew or podocarpus like tree with loose drooping and spreading branches although its habit is very upright as a young plant. It was introduced by William Lobb in 1847 from Chile and Patagonia. It has male and female cones on the same plant. The female cones resemble those of a monkey puzzle. There is a very large mature plant at Tregullow gardens near Redruth.

Prumnopitys andina (Podocarpus andinus) – A Chilean yew with plum like fruits which resemble small damsons. This small tree is unusual in that it will grow on chalk.

Prumnopitys taxifolia (Podocarpus spicatus) – This is known as the Black Pine of New Zealand. It has slender drooping branches and small, narrow, bronze tinted leaves. Another plant which looks dead until you examine it closely.

Click here for information on how to care for Podocarpus

CONCLUSION

The expanding Caerhays collection of Podocarpus has added a new dimension to the garden, arguably well beyond its normal strengths as a hundred year old Wilson and Forrest based collection. I make no apology for enjoying the products of Graham Hitchens wild collecting and hybridising work but I wonder if even he had thought of his Podocarpus as a ponticum replacement windbreak?

In two key exposed areas of the garden the podocarpus collection are starting to perform a new function. They clearly will grow bigger in Cornwall than in Essex and some varieties are clearly more suitable than others. However, turning a potential windbreak into a National Collection may be something of a novelty.

Podocarpus are varied and exciting plants which should be very much more widely grown in gardens. In time we may even find time to attempt our own hybridisation programme but that is in the future.

The next step is to expand the collection with more new tender(ish) species and see if we can achieve a second National Collection at Caerhays. Watch this space!

CHW
27/05/09

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