That is great. I'll have to watch out for mine.

Here's hoping it's a sport, and not just heat stress. I love MW and would snap up a single version in a heartbeat. If it turns out not to be a sport, or if it isn't stable, just enjoy it while you've got it ;)

John

My Wolllerton Old Hall threw singles flowers and Lady Emma Hamilton semi double. No wonder. It is their first summer and we had upper 90 or even 100F for all summer.

Volha, thats cool about yours throwing singles and semis. I have Lady Emma but she is tiny.. i will have to watch her.

Roseseek and fig, I will tag it and see if any more singles appear. I would love to have more singles like this! Photos just don't do it justice. My phone camera doesn't pick up dark reds and pinks well. It is darker red w some dark dark purplish pinks in it, in person.

Is it legal to propagate a sport while under patent? As in root it off the mother plant? I have no clue lol.

ETA..I will try to go out this evening and see if I can get some better pics when the light is better.

A sport is different from the patented variety. The patent covers the many petaled flower of that specific plant. A mutation varies from the original in some material way, therefore it is a new plant. A single from a very double, or even a stable, significantly higher petal count; a different color; a significantly different growth habit (say dwarf rather than rampant or larger climbing type versus a bush type); a veritably healthier mutation (like Mildew-free Permanent Wave) are just some of the variations that could potentially be market worthy, patentable mutations. If someone else patented the sport, then you shouldn't propagate it, but apparently no one has. You are only limited against propagating the original form of the plant, not a stable mutation. I should add that with some introducers, if you are a accepting the plant for test, any mutation which occurs while under test is restricted from being 'stolen', but as the end, retail purchaser, you are under no obligation not to investigate patenting or otherwise marketing and distributing a stable mutation.

Thanks Roseseek for the clarification on sports. I wasn't sure. I hybridize brugmansias, plumeria, hibiscus and have a really nice blue japanese hidge form of morning glory that is probably a mutation from a blue single form that I had but produces true from seed. I haven't delved too deep into the patent laws except of course not using anything that is patented lol. Most brugmansias aren't patented (just a few are so far) so its open season on those lol. There is a brugmansia called "Miners Claim" which is patented. It was a variegated sport from a unpatented plant.

It looks like one of the dumb roosters found my single and took a few bites out of it so I didn't take any more pics lol. I marked the branch with a tag. It looks like another bud is forming on the end of that branch so hopefully it will be a single. I will update on this thread either way :D That was sure a neat single bloom. Stopped me in my tracks this morning when I was watering Munstead Wood. I was like, " Whaaaaaat? Wait a minute, what is that??" lol.

SJN

I've had any number of double roses produce single flowers when it is hot. This very afternoon I noticed that 'Gloire de Hollande' (1918 HT) is doing that right now. Mine is not a sport - there are doubles on the same branch.

Sport or not, it's still very pretty- glad you got to see it, and glad you decided to share.

Virgiinia

Rosefolly, I had to look up Gloire de Hollande. WOW that is one gorgeous rose. Please post some pics of the regular and single form sometime. I really like that rose.

There are a couple brugmansia that will bloom singles and double form blossoms on the same plant. Rosalla comes to mind. It is stable in the way that is does this sometimes but enviornmental conditions seem to make it happen more often. Here is the link to that brugmansia http://www.brugmansia.us/cultivars/cultivars.html/_/681

It is neat when you get a plant that does that.

Thanks vmr. I hope it stays this way but if it doesn't at least we know it can happen with Munstead Wood. Maybe once its off patent it might be fun to play with the genes of this rose and produce something that throws both singles and doubles on the same plant.

Mine has done the same under continously hot conditions and so have done other Austins and HTs.

Hi nik, thats great. I think we should start a thread featuring roses that are double or semi double that throw singles. It would be neat to see what they all look like in the single form and to note exactly which ones do this :)

Your description of your hybridising activities, Jasmine, reminds me that it's been a while, hasn't it, since we saw pictures of your garden? Should you feel like getting your camera out again, I'd like to be reminded of how you combine your roses with those tropical shrubs and climbers. :-)

HI comtesse, sorry for the delay in answering. Its been a crazy week. I have more like a pot ghetto than a garden for most of my roses still lol. I had planned on getting them all planted out into beds this spring but had an unexpected health issue so didn't get it done and then it got so hot here all summer this year that I never got around to it. Hopefully the fall will bring some cooler weather and I can finally get back to the goals. I do have some climbers in pots propped up against some arches and tripods. Does that count? Ha! I planted some brugs in beds last year but several are still in pots from when I moved a few years ago.

I keep my brug seedlings in pots for a few years until they are deemed worthy of a spot in the garden or bigger pots. We get some freezes here most winters so if I want seed pods saved on the brugmansias they have to go in pots and the pods will finish ripening in the greenhouse. The brugmansias really get blooming good in the early spring or fall when the night temps are much cooler than the daytime temps. That seems to be the best time for the pollen to "take" on them as well. Is it the same with roses? Anyhow not too much blooming in the garden right now due to the heat.

Here is a video from You Tube that I posted there several years ago in my garden. Not roses but brugmansias if anyone wants to see it lol. Hit the mute button if you don't like the tunes lol! These are all kinds of named brugs in my old garden-not just my own hybrids. This is how they bloom in the fall when the night temps drop. I wanted to make another one this fall now that I don't have such a ghetto camera :). We will see how it goes.

https://youtu.be/4bL3eOjmNiU

Not an antique, but the Chrysler Imperial at my work I planted gave two single, malformed blooms (only four normal petals, not five) during our hot summer:

Steven