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upperbaygardener

a few interesting pictures

8 years ago
last modified: 8 years ago

Here's my yearly roundup of Ericaceous developments. ([previously...[(https://www.houzz.com/discussions/a-few-spring-pics-of-uncommon-varieties-dsvw-vd~3901716))

First, R. molle japonicum keeps getting bigger and showier. Love this plant. The color almost overdrives that smartphone's CMOS chip and causes the color to appear off. IRL it is a blazing, solid orange with just the slightest shading of pink.

Here is Arneson's Gem, only got one flower on it this year. It's spectacular when well grown though...not sure where but I know I saw one that prompted me to buy it. Either the Rarefind display gardens or somewhere else in the PA/NY area. Flowers are big for an Exbury type.
It seemed to struggle when planted - I've actually found deciduous azaleas harder to establish in my conditions that elepidotes. You can see the showy display of the japonicum in the background.

Now, just some seedpods. Am making some crosses for a couple collectors in New England. This is sinofalconeri pollen on 'Sky King'. They have even gotten bigger since this picture! The pods on BVT X mac are the biggest I've ever seen in my garden, including the incredibly fecund fortunea hybrids like 'Mary Garrison'. (makes so many huge ugly pods it is almost disfiguring LOL) So, I am confident the crosses took and there will be a lot of seed! The twist ties are marking the pollen origin. Also made a few additional interesting crosses...I tried putting sinofalconeri on 'Autumn Gold' because it should help the offspring get a deep color.

One pod didn't seem to take. (left front)...
What I'm finding about the timing is it doesn't really make sense to wait until the stigma is receptive and sticky. Better to just get some pollen on there just before the flower opens, emasculate it, and protect it with a mini plastic bag with a few holes for vents. So the instant it is receptive, there's already pollen there. That's how I got the huge
pods this year.

Here is 'Joseph Dunn'. Not the showiest plant, but it seems very resistant to my hot, wet summers, especially for a lepidote. Many more lepidotes, as a percentage, have died for me than elepidotes. Granted, I have tried foolish things like 'Trewithen Orange', bound to die here in summer eventually (and probably winter, without occasional protection). But even lepidotes like 'Furman's Pink Prologue' that should grow well, seem vaguely unhappy here. So Joseph Dunn and R. minus 'Ft. Gaines', a heat resistant one from the southeast, are best so far. I had Van Veen root them for grafting experiments. 'Ft. Gaines' cuttings grow faster so have only experimented with it so far. r I can confirm 'Yellow Hammer', a fine variety which would surely get root rot here (both its parents have died of it!!!) successfully grafted. I cut off the parent connection early this spring - very nerve wracking - and it is sprouting as well as branches on the rootstock! Very exciting...it's too bad these are so painstaking to make...even compared to other grafts like maples, conifers, and various BLEs. The stems are just so darn fragile and the cambium so thin.

I love the look of the Fargesia 'Green Screen' bamboo foliage on the ground. The dramatic shade is being cast by the huge leaves of Magnolia 'Phelan Bright'.

This is so-called 'True Blue'. Not going to get rid of it, but it's a bit of a let down. It might start a little closer to blue, but fades back to typical rhodie-mauve. I placed a flower of 'English Roseum' atop the truss...I have some of those around for rootstock use, too - and you can see it is hardly different. 'Polarnacht' is a better color. GRANTED, it seems like as with yellows, odd elepidote colors like this might look better in maritime climates. I swear 'True Blue' looked better to me when I saw it in Northern California. So for me at least the various 'blue' lepidotes like 'Crater Lake' are better at producing a blue effect.

Finally, first flower of 'Max Roseum' X 'Skipper' (yellow form). It's not very deep at all, but probably almost as good as 'Capistrano' was around here. The saturation is similar but the hue is more eye catching to me. Somewhat similar to but better than what I remember 'Phyllis Korn' looking like. AND the flowers have a curious pearlescent sheen to them, like piano ivory or something. Hard to capture in the picture, you had to be there LOL. The pink filaments are showy.

Comments (12)

  • 8 years ago
    last modified: 8 years ago

    Oops! I meant I had grafted 'Goldstrike', not 'Yellow Hammer'. 'Yellow Hammer' is another one I want to try to graft someday.


  • 8 years ago

    Thanks for the update. I’m glad to hear you had success with crosses this year. Your sinofalconeri x SK sounds great. Did the HG x macabeanum perc up?

  • 8 years ago
    last modified: 8 years ago

    Yeah, 'Sky King' is much closer to yellow, if that's what RF is hoping to create. In fact just before the flowers drop, it's competitive with the with the better, more durable east coast yellows like 'Yates Treena'. Unfortunately it opens pink! BVT X mac opens light pink and fades to white.

    I just took a picture of HG X mac. Looking better, it really enjoyed the 3rd wettest May on record and made a nice new rosette of leaves. It was incredibly dreary...most established rhodies are making extra-big leaves. Biggest on this one I measured at roughly 9". Thanks for this plant.

    Another hybrid that might have worked is 'Yates Treena' X 'Fieldbrook'. 'Fieldbrook' is Singing Tree hybrid that opens VERY orange. I was shocked when I saw it. As close to orange as something like 'Medusa', but more fluorescent/day glo orange vs. spanish orange. Hoping it will bring some intensity to 'Yates Treena', which is very pale some years, but otherwise a good 'hardy yellow'. 'Fieldbrook' isn't very hardy so I might never plant it out here, but just use it for breeding. (something I said would never got into...but oh well!)

    I also put some HG on (BVT X mac) and on 'Sky King'. IIRC the former has already been crossed by someone else, but there's no harm in sending some seed to the exchange.

  • 8 years ago

    I’m glad to hear your having success hybridizing. You created some nice hybrids! The HG x macabeanum looks great I’m glad it ‘recovered’. It’s interesting to see the variations between seedlings in that HG x macabeanum cross. Here are some photos from yesterday

  • 8 years ago

  • 8 years ago

    UpperBayGardener (zone 7) thanked timbz6
  • 8 years ago

    Here’s the beast

    UpperBayGardener (zone 7) thanked timbz6
  • 8 years ago
    last modified: 8 years ago

    Loving this Thread Guys

    The knowledge & Dedication of you Experts is Exceptional and to be Admired

    Happy Gardening from Cheshire UK

  • 8 years ago
    last modified: 8 years ago

    Tim, great pics. You are a seedling growing machine! I can't wait to see some of your 'top plants' evolve over the next few years, like the monster seedling involving maximum and sinogrande. (or of course, my seedlings, which I have to repot very soon. This weekend I think. They are fine.) I feel like you and your collaborators will eventually end up with a rhody leaf big enough to stand under in the rain hahaha.

  • 8 years ago

    David, I planted a couple of your Captain Jack x delavayi seedlings outside. We’ll see how they fair this winter.

    UpperBayGardener (zone 7) thanked timbz6
  • 8 years ago
    last modified: 8 years ago

    Cool. Sinofalconeri on 'Autumn Gold' is looking like it definitely took, pods are swelling!

    Captain Jack was being overly shaded by an Idesia that had permanent trunk problems, so I cut it down last fall...the extra sunlight combined with the wet spring really made it take off! It had seemingly been languishing and would only produce 2-3 trusses per year. I think it will really be blooming like crazy next year. Will post a pic later. This is an interesting thing I'm finding about various rhodie cultivars...they can take more sun, at least around here, than people give them credit for. And in fact seem to bloom better for it.




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