Glen - if you're savvy enough to find this forum you're savvy enough to find a contact at the Forestry commission or RHS as advised. If you watch GW you'll have seen the items about the spread of diseases thru imported plant material and the need for greater care now and in the future to protect native and long established plants and habitats and all the other flora and fauna and economic activity that depend on them.
A 20 year old GC with or without an RHS qualified manager is no guarantee unless they state it on their website and in their shop.
If you don't care, fine. If you can't be bothered, fine. If you want to risk missing a diagnosis that could help your plants to better health or safe destruction - whichever is advised - fine.
Just don't do the whole "If I'd only known" hindsight thing later on.
Vendée - 20kms from Atlantic coast. "We don't stop playing because we grow old; we grow old because we stop playing." - George Bernard Shaw
"I would be cautious about assuming cause and effect because surviving undisturbed in virgin enclaves does not make a species hardy. Until recently G. Biloba's native habitat in China was not exposed to the threat of industrialisation.[1][2] The IUCN now classifies the last extant Ginkgophyte as "Threatened" [2][3]; its hundreds or thousands of cousins were not hardy enough to make this this far.[4]
Glen - if you're savvy enough to find this forum you're savvy enough to find a contact at the Forestry commission or RHS as advised. If you watch GW you'll have seen the items about the spread of diseases thru imported plant material and the need for greater care now and in the future to protect native and long established plants and habitats and all the other flora and fauna and economic activity that depend on them.
A 20 year old GC with or without an RHS qualified manager is no guarantee unless they state it on their website and in their shop.
If you don't care, fine. If you can't be bothered, fine. If you want to risk missing a diagnosis that could help your plants to better health or safe destruction - whichever is advised - fine.
Just don't do the whole "If I'd only known" hindsight thing later on.
Thank you for the information you provided in your first post. Please relax, I will post FC's response when I have it.
The Ginkgo's pot does not drain quickly like my other pots (Olea sp., Ficus sp., Cedrus sp., etc.) It received the same treatment, but perhaps the hole at the bottom became blocked. Would water logging produce the leaf observations?
The root ball of the Ginkgo reeked of something wet and rotting when first potting, but apparently its fruits smell like vomit, so perhaps the roots also have a natural pong?
If it had been water-logged it would smell badly and having a badly drained pot wouldn't help with future plant health+ Might be worth taking it out, checking the hole for free draining and maybe re-potting in a bigger pot in fresh compost. Unless you have the newer "Troll" variety, these things get to 25m tall when mature so a small pot isn't going to last it very long.
See below an interesting read on the scarcity and specialisms of G. Biloba. Its genetic diversity in wild populations is poor, as is its range, which suggests to me this plant may be nearly extinct.
Unless you have the newer "Troll" variety, these things get to 25m tall when mature so a small pot isn't going to last it very long.
I do not recall "Troll" being on the label. I put these medium sized trees in pots to bring their foliage safely to my house, with the hope that these trees become (large) bonsais.
Posts
A 20 year old GC with or without an RHS qualified manager is no guarantee unless they state it on their website and in their shop.
If you don't care, fine. If you can't be bothered, fine. If you want to risk missing a diagnosis that could help your plants to better health or safe destruction - whichever is advised - fine.
Just don't do the whole "If I'd only known" hindsight thing later on.
"We don't stop playing because we grow old; we grow old because we stop playing." - George Bernard Shaw
Citations added retrospectively.
[1] ?, "Deforestation and Desertification in China" in Facts and Details, available at: http://factsanddetails.com/china/cat10/sub66/item389.html
[2] ?, "Ginkgo Biloba L." in Key Science, available at: http://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:262125-1
[3] ?, "Ginkgo Biloba" in IUCN, available at: http://www.iucnredlist.org/details/32353/0
[4] Zhi-Yan Zou, "An overview of fossil Ginkgoales" in Palaeoworld, available at: https://www.researchgate.net/publication/223266727_An_overview_of_fossil_Ginkgoales
"We don't stop playing because we grow old; we grow old because we stop playing." - George Bernard Shaw
The Ginkgo's pot does not drain quickly like my other pots (Olea sp., Ficus sp., Cedrus sp., etc.) It received the same treatment, but perhaps the hole at the bottom became blocked. Would water logging produce the leaf observations?
The root ball of the Ginkgo reeked of something wet and rotting when first potting, but apparently its fruits smell like vomit, so perhaps the roots also have a natural pong?
Yes, the fruits on the female trees do smell badly but I expect there has to be a male around to get fruits. See here for some more cultivation info - https://www.rhs.org.uk/Plants/7990/i-Ginkgo-biloba-i/Details
"We don't stop playing because we grow old; we grow old because we stop playing." - George Bernard Shaw
See below an interesting read on the scarcity and specialisms of G. Biloba. Its genetic diversity in wild populations is poor, as is its range, which suggests to me this plant may be nearly extinct.
https://books.google.co.uk/books?id=g_MPcQ1gu3MC&pg=PA9&lpg=PA9&dq=West+Tianmu)+the+last+surviving+truly+wild+population+of+Ginkgo+trees.&source=bl&ots=-GpdMzVVSe&sig=puRjWF58tN54OS-v9tBJNlElsKA&hl=en&sa=X&ved=2ahUKEwjWn8mii-DcAhVOWxoKHen9DZ4Q6AEwAXoECAkQAQ#v=onepage&q=West%20Tianmu)%20the%20last%20surviving%20truly%20wild%20population%20of%20Ginkgo%20trees.&f=false