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UK's first Wollemi pines from seed

Tony Hall
7 August 2013
Blog team: 

In 2011 seed I collected from Wollemi pines growing at Kew were germinated in our Arboretum nursery, producing dozens of seedlings. Now, two years, on we have lots of new young plants to add to our collections.

"The botanical find of the century"

In 1994 David Noble, a field officer for the National Parks and Wildlife Service Australia in the Blue Mountains area of Australia, discovered a small group of very large trees in a in remote canyon of the Wollemi National Park that were until then only known from fossil records. The new species was named Wollemia nobilis, the Wollemi pine.

Collecting the seeds

In September 1997 two plants were presented by the Hon. Mrs Pam Allan, New South Wales Minister for the Environment, to the then Director of Kew, Professor Sir Ghillean Prance. A further batch was sent to Kew in 2005 for hardiness trials and subsequently planted in the arboretum in 2008. Back in 2010 I noticed some of the Wollemi pines growing in the Arboretum were producing seed-bearing cones. I had meant to collect some of the seed in that year but missed the opportunity. Marking it in my diary for the following year, I managed to collect some seed in 2011. (A short article detailing the collection and germination of the seed was published in the Kew Scientist October 2011 issue.)

4 metre tall Wollemi pine on lake island with me for scale.

Wollemi pine in the arboretum, at just over 4 metres - with me for scale.

25 Cones were produced on one individual in that year and six were collected and sampled for seed. The cones had an average of 187 seeds in them although seed viability was generally low at just over 10%.

Image of a ripe Wollemi pine cone on one of Kew's Wollemi pines.

Ripe cone on Wollemi pine (Wollemia nobilis)

  

Image showing fresh Wollemi pine seed, with ruler for scale.

Some of the collected seed prior to sowing. 

Sowing the seed

The seeds were sown in batches from each cone in the Arboretum nursery,  which is where all of Kew's woody temperate propagation is carried out, by my nursery manager Andrew Luke. Germination of the Wollemi pine seed started at 42 days. We didn't sow all of the seed: the bulk of it was sent to the Millennium Seed Bank for storing.

Image of Wollemi pine seedling germinating, still with sed coat part covering seedling.

The first Wollemi seedling to germinate

Group of young Wollemi pines in airpots growing in the Arboretum nursery.

Small group of two year old Wollemi pines

Germinating the trees

The seedlings pricked out and potted on have now given us lots of new young plants to join the others in our collections and, hopefully, in time they will grow as large as those in the wild.

 

Image of Wollemi pine at 6.3mts with Andrew for scale.    

Andrew Luke with the tallest of the Wollemis

  Close up of Wollemi pine back with it's typical coco pops look.

    Typical bubbly coco pop-like maturing bark

Some of the original Wollemi pines planted in the gardens are doing really well, growing approx 1 metre per year, with a small group of five all around 6 metres tall, the tallest being 6.3 metres. These original trees were part of hardiness trials carried out at Kew between 2005 and 2007, with the trees being planted out in the Arboretum after the trials had finished. The ones being planted in lower pH areas are doing the best.

Where to see them

You can see a specimen Wollemi pine in front of the Orangery restaurant at map reference 5-O on the Kew Gardens map (pdf). It is in a protective cage and was planted by David Attenborough.

- Tony - 


 

Book tickets to Kew Gardens

 

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Comments

25 August 2013
Comment: 
Plant seems easy to grow why are they treated as if they are gold? still one of the hardest plants to get, Does Australia have a copyright on the plant?
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15 August 2013
Comment: 
Goody From Terry the Pom in Sydney Australia. I live near the blue mountains where you Wollemi is in its habitat. so find it interesting to hear about your plant. I've lived in Aus 8 yrs and before that England for 60 yrs and admit to never visiting Kew ever. Take heart I'm in London at the beginning of November this year and will visit Kew. Kew really is a Mecca for those who love the Plant world and this visit will put right my failure to visit. I love trees of all kinds and in The Philippines and am beginning to grow Bamboo. I also grow bananas and coconuts. Well sorry for long email but thought I would just contact the plant kingdoms HQ See you soon Happy planting Terry
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9 August 2013
Comment: 
What a fantastic story. On the day when propagating pandas is in the news it's great to hear that Kew is doing similar work with conifers!
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