I created it. It is a cross between a mariposa plum, seed parent, x Krauter vesuvious myrobalan plum, pollen parent.
Looks great. The hybrids are interesting. I would like to know how they turn out. Do you have older trees to graft to so you can get fruit samples without waiting several years?
Watching graft actively growing is incredibly satisfying. I grafted three cherry grafts as a test and all 3 have taken. One of the cheery trees is probably dying, luckily i saw a root sucker and just let it grow and top worked it it has about 7 inches of growth. I did 6 grafts on a multi graft plum i have 5 growing (2 flavor king, 4 santa rosa). On my flavor grenade i added another flavor king graft to aid in pollination, it is growing well. Peaches/nectarines have been slower to take 1 for 3 on one tree. Although i am hopeful they will take even though it has been well over a month. On the neighbors tree I tried 5 grafts only 2 look to be growing. 12/18 66% not bad for my first season. All grafts were cleft grafts.
Those look great! The more you do, the better youāll get! 
I am not an expert but have had a couple dozen take and grow. Itās a great feeling!
Now I go around looking for things to graft. Most of my apples, pears, and plums are becoming multigraft now. Some cherries are heading there too.
Yes, I got the scion from my 3 year old tree. It produced about eight flowers, all of them produced fruit, but a frost killed them all, except one.
Good work TWM. Hopefully, once of these day, I will see your name on one of the hybrid you created.
Tony
You will.
Iām going to race you to the patent office with my Drewberry. A friend of mine is a patent lawyer.
Actually I need about 10 years yet, and my friend is retiring (sigh).
Do you have any pictures of your Drewberry, Drew?
Iām also working on red-leaf plum x cherry hybrids.
Can a cherry seedling be effectively grafted onto, and also can a wild black cherry serve as rootstock? The obvious answer would seem to be yes, but it seems to me I remember reading wild cherry was very difficult to graft. Furthermoreā¦if it is possible, would anyone be willing to share a type or two of cherry so I could try this? I could send a pre stamped bubble envelope if so.
I still have a few weeks I think.
No, itās only a mental image at this point! I know what is needed, I know where a huge niche in the blackberry market is, just waiting to be filled. I have a good idea of how it can be created, but I have not created it, and may never get what I need. It may take growing out 20 thousand plants to find the right one. In 10 years I will have a better idea if I can achieve what Iām trying to do.
Creating a good cultivar takes a long time. All current cultivars, or at least most took a long time to develop. And then it takes just as long to get it to the marketplace.
Columbia Star is a winner. It has 40 cultivars in itās lineage, all that was done by 2005 and testing began. In 2014 it was ready to market. This is true of any fruit, itās not going to be an easy process by any means. And this was done by Oregon State University and the U.S. Department of Agriculture. with all their resources it took 9 years to release the finished product. Hereās itās only me. If I can get it out in 25 years, Iām doing good!
Iām going to have to prove that the cultivar is worth selling else nobody will pick it up. This is going to take time and money, I figure maybe 30 to 50 grand to market a winner. Iāll need a few lawyers, Iāll need a salesman, Iāll need proven field trials before anybody will even look at it. It costs tens of thousands to propagate any plant to sell to the public, no nursery is going to do it without proof positive it will be worthwhile. After all of that I should get about 5 cents for every plant sold.
I plan to cross a bunch of fruit trees too, but that will be for my own amusement only. Itās already proving difficult as all stone fruit buds were killed here the last 2 years. Hard to cross anything when that happens!
I still though will race you to the patent office. I do have the 10 grand needed to secure a patent.Thatās the easy part! Youāre not going to want to patent anything until you know itās a proven winner. Brambles will be a lot easier than trees. You have to wait at least 6 years, even with just a rootstock. You have to prove good fruit can be grown on the rootstock.
Zaiger grew over 10 thousand trees a year for 10 years before the first patent.
Iām up for the field testing of the drewberry. You can get the results of how it would do in the southeast, 7B, with high humidity and heat. Should have 30-50 kinds to compare it to by then.
Haa! LOL! Yeah sometimes you can get farmers to try it out, I will talk to other breeders if I ever get to that stage. I probably will give it away if it ever really happens. Unless you can produce a load of different plants, it doesnāt seem worth all the trouble. What Iām getting from single cultivar breeders.
Bad news, on sunday afternoon I removed the tape from my plum graftā¦then on monday we had strong winds; and they broke the graft off from the tree.
Weatherman. Sorry to here about your plum graft breaking. For what it is worth I broke several when I first started grafting and truth being told Iāll bet many of the other posters have had the same thing happen. After grafting a few years I still take a few precautions if the scion is extra important to me like adding a temporary brace or adding an extension to keep birds off for a little while. Good luck on your next one, Bill