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Rhododendron and other Ericaceae
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Rhodo ID's or clues
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Topic: Rhodo ID's or clues (Read 6989 times)
nicheplanthead
Newbie
Posts: 42
Rhodo ID's or clues
«
on:
November 19, 2008, 09:19:42 PM »
This late fall I transplanted this two rhodo from large pots but I have lost my labels.
I'm not sure if there are even on my records but I have included what I have here
that might help somebody to recognize by associating with my list. I don't think they
are from my seedlist grown plants but I should also check as the list seems to be
missing a few..
I think its time for me to get John Greer's book or if anyone has a better recommendation.
Rhodo hanceanum nanum 2005
Rhodo Aborescens 2005
Rhodo Algo 2001
Rhodo autumn velvet 2006
Rhodo canadensis 2005
Rhodo complexum 2004
Rhodo counterpoint 2005
Rhodo fastiagatum DD 2001
Rhodo ferrungineum DD 2001
Rhodo Girard's Hot shot 2006
Rhodo groendlanicum 2004?
Rhodo Hellikki 2004
Rhodo impeditum DD 2001
Rhodo impeditum DD 2005
Rhodo intricatum 2005
Rhodo July Joy 2005
Rhodo Kermesina Rose 2006
Rhodo kiusianum 2001
Rhodo kiusianum purple DDform 2001
Rhodo Lemon Drop 2005
Rhodo mucronolatum 2005
Rhodo mucronulatum 2005
Rhodo mucronulatum Cheiju Isl 2003
Rhodo Nova Zembla 2007
Rhodo narcissiflora 2006
Rhodo patty bee 2005
Rhodo Pink dawn 2006
Rhodo Pink Discovery /
Rhodo PJM compacta 2000
Rhodo pohjola's daughterDD 2004
Rhodo popsicle DD 2001
Rhodo prunifolia 2004
Rhodo Sericho 2004
Rhodo Thunder 2006
Rhodo Towhead DD 2005
Rhodo wren DD 2001
Rhodo x Apricot suprise 2004
Rhodo x NorthernStarburstDD 2004
Rhodo x Oudijiks favourite 2005
Rhodo x patty bee 2005
Rhodo x Pink Discovery 2005?
Rhodo x Starburst DD 2004
Rhodo Yak Ken Janek 2001
R REX ARIZELUM 2007
R.TOMENTOSUM SSP TOMENTOSUM 2007
I'm slowly becoming a rhodoholic after joining the local club at the montreal botanical garden and
the american rhodo society..
pics were taken today
many thanks,
Stuart Hechinger
Beaconsfield Quebec Canada -3C
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Stuart Hechinger
Beaconsfield
Quebec
Canada
-25C
25"/year
johnw
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Re: Rhodo ID's or clues
«
Reply #1 on:
November 20, 2008, 01:58:05 PM »
Stuart - The best I can do is eliminate the ones on your list that are definitely not in the running for the proper id. So this list below shows what they could be.
They appear to be in Lapponica Subsection, these are notoriously difficult to id without a hand lens to examine the scales etc. and still difficult. Also they grow so differently in your climate I can't make any pronouncements. Maybe others might make an attempt.
Rhodo complexum 2004
Rhodo fastiagatum DD 2001
Rhodo impeditum DD 2001
Rhodo impeditum DD 2005
Rhodo intricatum 2005
johnw
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John in coastal Nova Scotia
Maggi Young
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Re: Rhodo ID's or clues
«
Reply #2 on:
November 20, 2008, 02:35:29 PM »
John is correct, these things are tricky..... and your plants seem to be suffering a bit.... I imagine it's because you've been getting -3 temperatures... the leaves are in what I would call "cold mode".... rather rolled at the edges.... there may be an element of stress too, if they have only recently been released from their pots, and are a bit dry...... not that I suggest watering them when it's minus 3 degrees!!
My comments which follow are based on what I would surmise if confronted by your plants in my garden conditons.........
I'm going to go a little further than John, though....... I don't choose
complexum
because the leaf tips of yours seem a little too rounded......
I'm passing on
fastigiatum
and
impeditum
because their growth tends to be more compact and congested....which leaves me with
intricatum
.... this does make a plant with slighty taller, twigy appearance. When in full prime condition, the leaves should have a grey-blue appearance and be very scaly.
So, that's my contribution... hope it helps!
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Margaret Young in Aberdeen, North East Scotland Zone 7 -ish!
Editor: International Rock Gardener e-magazine
nicheplanthead
Newbie
Posts: 42
Re: Rhodo ID's or clues
«
Reply #3 on:
November 21, 2008, 02:36:55 AM »
Thanks John and Magii you are real both a whiz
did not know they were of the Lapponica group
my memory has been jogged as it is likely complexum
and intricatum
I was hoping to rely on the listing on the american rhodo society website but the genus is so large that I guess I need to get a decent text to find which one is which now!!
I'm happy that I can grow these small ones as I killed a few fastigatum's and var. rupicola but I now grow them on better better soil mixes than I used to. I still think my soil is deficient just by comparing the leaves of others I have seen on the web. I am using some powdered sulpher to get acidity from 6.5 to a bit lower. Maybe its the vaccinium minus stealing nutrients.
I had to chop some roots to make them fit but it has been relatively damp this fall, and temperature will get down to -20C for a week in winter and possibly lower so I am just happy to keep them.
Stuart Hechinger now -6C Beaconsfield Quebec
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Stuart Hechinger
Beaconsfield
Quebec
Canada
-25C
25"/year
nicheplanthead
Newbie
Posts: 42
Re: Rhodo ID's or clues
«
Reply #4 on:
November 28, 2008, 06:15:40 AM »
Here is my records from zero experience to now modest success..
hardiness from greers book whatever the spelling
at -20C or worse sometimes it lasts for a week and gets even colder
I'm pushing the limit of what can be grown
Rhodo hanceanum nanum 2005 bvc 1' 0F died
Rhodo Aborescens 2005
Rhodo Algo 2001 two cuttings planted left of daphne mez in back medium shiny leaf upright sun tolrrance 3' minus v minus
Rhodo autumn velvet 2006 plant sale large pot
Rhodo canadensis 2005 comments -25F Early compact upright bushy flowers new growth
Rhodo complexum 2004 s. lapponicum 1' -10F earlyMay average
Rhodo counterpoint 2005 lepidote 4' -20F E semi-dbl pink weston nursery similar to pjm -06 aug 6" new growth
Rhodo fastiagatum DD 2001 C -15F mid season 2004 died in protected pot
Rhodo ferrungineum DD 2001 lost?? 2' -15F mid Alpine rose takes some sun perfect drainage
Rhodo Girard's Hot shot 2006 rsociety in lpot 2" aug new groth
Rhodo groendlanicum 2004? 2006 dieback ? too dry
Rhodo Hellikki 2004 1.8mx1.8m in back
Rhodo impeditum DD 2001 1' -15F died 2002 spring replaced 2002 severe damage 2003 spring
Rhodo impeditum DD 2005 bvc 2006 died in trough in spring
Rhodo intricatum 2005 bvc 2' -15F 24"x24
Rhodo July Joy 2005 blooms July!' -06 new growth yellow
Rhodo Kermesina Rose 2006 large pot
Rhodo kiusianum 2001 seedling 2' -10F in back in front cedar small leaf
Rhodo kiusianum purple DDform 2001 2004 died or near death in covered pot
Rhodo Lemon Drop 2005 -06 by august 1'+ new growth
Rhodo mucronolatum 2005 5' -15F ?Cheju form hardy
Rhodo mucronulatum 2005 rwoc? aug 1'
Rhodo mucronulatum Cheiju Isl 2003 garden near cedars in front of small leaf kiusianum -06 half branches gone?
Rhodo Nova Zembla 2007
Rhodo narcissiflora 2006 plant sale large pot aug little growth leaf brown spots white tips
Rhodo patty bee 2005 dieback spring august died
Rhodo Pink dawn 2006 plant sale 3" aug new growth
Rhodo Pink Discovery /
Rhodo PJM compacta 2000 18" upright leaves lite yel shud be dark grn 39"x4" 4' -25F minus var minus Carolinanum grp x dauricum
Rhodo pohjola's daughterDD 2004 died in ground dried up
Rhodo popsicle DD 2001 hot pink leafs out late no flwr 02 died 2003 died
Rhodo prunifolia 2004 4' -15F
Rhodo Sericho 2004 in back growing flat -06
Rhodo Thunder 2006 soc sale in lpot 3-4" aug new growth
Rhodo Towhead DD 2005 2006 died suspect pot
Rhodo wren DD 2001 1' 0F died?
Rhodo x Apricot suprise 2004 in front of cedars at end large leafs opposite -06 circles cut out by insect
Rhodo x NorthernStarburstDD 2004 JP died
Rhodo x Oudijiks favourite 2005 bvc 3' -10F angustini hybrid
Rhodo x patty bee 2005 bvc 18" -10F keiskei died 2006
Rhodo x Pink Discovery 2005? front tip dieback -06
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Stuart Hechinger
Beaconsfield
Quebec
Canada
-25C
25"/year
nicheplanthead
Newbie
Posts: 42
Re: Rhodo ID's or clues
«
Reply #5 on:
November 28, 2008, 04:01:09 PM »
Here are some pix on how I over winter rhodo seedlings in a climate where we have winter defrost cycles and rains, freezing ice storms, and sometimes >6' of snow cover and heavy loading. at least -20C and windy. The building is my wind break
If I would put them in a covered cold frame the melt down period still would cause water accumulation up to the pots rim, then freezing. I know of nursery man here that puts all his plants on the side and then covers them with a large tarpalin until spring. He get a fair bit of branch damage from the snow loading and it must be real messy in spring time.
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Stuart Hechinger
Beaconsfield
Quebec
Canada
-25C
25"/year
johnw
Hero Member
Posts: 6696
Country:
rhodo-galantho-etc-phile
Re: Rhodo ID's or clues
«
Reply #6 on:
November 28, 2008, 07:56:26 PM »
Stuart - Here is a friend's coldframe for seedlings, it could easily be adapted to hold pots in wood chips. Note the heavy 2x4's for snowload.
As she is in the mild southern area of Nova Scotia she says she doesn't require the white plastic but instead uses shade cloth. We have argued about this as I am a firm believer in the white plastic covering in December (here). The shade cloth keeps snow out which is sometimes much needed, the plastic stabilizes temperature fluctuations much more and prevents the frame from drying out over the long winter.
johnw
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John in coastal Nova Scotia
Martin Baxendale
Quick on the Draw
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faster than a speeding...... snowdrop
Re: Rhodo ID's or clues
«
Reply #7 on:
February 02, 2009, 03:51:10 PM »
Can anyone help with the name of a rhodo that I bought from Glendoick years ago? It's a very large-flowered, large-leaved highly scented hybrid, huge frilly white flowers, straggly habit, smooth leaves, quite tender. I lost the label ages ago, but seem to recall that its name was (something) Waves, perhaps White Waves. I've been hoping Glendoick would list it again so I could confirm the name but they haven't offered it since and I can't find it on their website. Can't find it in any of my rhodo books either and online searches come up with nothing. Maybe it had a name change.
If anyone can help, that'd be great. Otherwise I guess I'll have to write to Glendoick.
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Martin Baxendale, Gloucestershire, UK.
Maggi Young
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Re: Rhodo ID's or clues
«
Reply #8 on:
February 02, 2009, 03:56:05 PM »
Can't think off hand, Martin, but a cup of hot chocolate and a biscuit may aid the thought processes..... off I go....
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Margaret Young in Aberdeen, North East Scotland Zone 7 -ish!
Editor: International Rock Gardener e-magazine
johnw
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Re: Rhodo ID's or clues
«
Reply #9 on:
February 02, 2009, 05:36:49 PM »
Martin - White Waves is the name. It is [nuttallii (lindleyi x dalhousiae)]. Hybridizer HJ Braafladt. Named by GF Smith. Reistered by GF Smith 1999. 2 x 1.8m in 15 years. This from The Int Rhodo.Register & Checklist. Can scan and send to you. Basically, 5 wavy edged lobes, rose red fading on opening to creamy white with pink flush aging to white.Dark brown anthers.
johnw
PS - Coming here tomorrow rain, heavy snow, freezing rain, wind. That about covers most bases.
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John in coastal Nova Scotia
Maggi Young
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Re: Rhodo ID's or clues
«
Reply #10 on:
February 02, 2009, 05:52:09 PM »
Well done, John, I may not have a complete set, but I can't find White Waves!! Thanks!
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Margaret Young in Aberdeen, North East Scotland Zone 7 -ish!
Editor: International Rock Gardener e-magazine
Martin Baxendale
Quick on the Draw
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Re: Rhodo ID's or clues
«
Reply #11 on:
February 02, 2009, 07:25:22 PM »
Thanks, John. That's the one. Any mention of hardiness? I think it was Glendoick's hardiness category H-1 (tender, mild frosts only, okay outside only in mildest parts of UK, such as West Coast Islands and western coastline) i.e. only really for glasshouse for most of us. I was wondering about minimum temps. as it's getting quite big now and a sheltered wall outside would be a good option if there's a chance it won't mind too much, though I suspect it would at least need a lot of protection.
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Martin Baxendale, Gloucestershire, UK.
johnw
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Re: Rhodo ID's or clues
«
Reply #12 on:
February 03, 2009, 07:00:38 PM »
Martin - No mention of hardiness and I think it would be a real asset if they had given hardiness ratings for the hybrids. I know this is difficult to do and most often the plants are hardier than the conditions in the hybridizer's / grower's garden. Sometimes the reverse. We find the UK hardiness ratings h1-h5 too broad but at least it's a start.
Given the parentage of White Waves I'd say -3 to -5c would be a good guess, maybe -7c for some of the hardier spp. of Maddenias of which this is not one. There are always surprises though, here usually nasty ones. Sounds like a hybrid for planting out at Brodick & the like, otherwise a tub plant.
Here's a Maddenia hybrid we grew from seed, may be close to your WW. Big tub and have to cart it in for the winter. Nice fragrance. May have posted this before
. Rhododendron {nuttallii x <[(dalhousiae x taggianum) x (dalhousiae x nuttallii)] x lindleyi>} Any more complex and we would run out of bracket types.
johnw
«
Last Edit: February 03, 2009, 07:13:17 PM by johnw
»
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John in coastal Nova Scotia
Maggi Young
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Re: Rhodo ID's or clues
«
Reply #13 on:
February 03, 2009, 07:16:18 PM »
Oooh! Big, glorious creature!
Martin, if yours is getting a bit too leggy, why not try a little bit of cutting back, one branch at a time, to see if it will break again...that will keep it a wee bit easier to move in and out in the pot......
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Margaret Young in Aberdeen, North East Scotland Zone 7 -ish!
Editor: International Rock Gardener e-magazine
Martin Baxendale
Quick on the Draw
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faster than a speeding...... snowdrop
Re: Rhodo ID's or clues
«
Reply #14 on:
February 03, 2009, 09:01:42 PM »
Thanks John. I was guessing only tolerant of light frosts, although yesterday and last night its pot froze solid for a few hours before I got it under cover and it's looking okay. It's the nutallii blood that makes me think it probably won't tolerate enough frost to plant out here. So into a bigger pot it'll have to be.
Maggi, eventually I'll have to cut back the two ridiculously long straggly main shoots but I'm loathe to lose them. There are smaller shoots below that would immediately grow up and make a better, more compact plant, but the two straggly ones each produce a hudge bud and a truss of flowers every year, so I'd lose a year's flowering. Wonder if I could root the tips of the main shoots, then I could tell myself I'm propagating rather than pruning?
Will have to post a pic when the buds burst. It really is a glorious flower. Really huge. And the scent is fantastic.
That, by the way, is a lovely seedling you have there. I'm a real sucker for Maddenia hybrids. Just bought last autumn a plant of Martha Wright from Glendoick, supposed to be an improved Fragrantissimum, which I've grown for years along with Lady Alice Fitzwilliam, and others.
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Martin Baxendale, Gloucestershire, UK.
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