So I have been battling these *****ly weeds ALL over my property!!!
They were mostly in the back yard and now took over a small rose garden in the front of the house.
Today, I had an estimate done to clear the outside of my fence (I didn't know it was my responsibility it's on the main street), anyway, I was walking around the fence and found LOADS of black berries!!! I picked a bucket of them today.
Also I will be transplanting them into my yard, so they don't get killed. And of course, I harvest the berries.
There are many and I am willing to share, however, they are the weeds I have been battling around. They are very invasive and I don't know how to control them...
But the berries are delicious and very prolific.

G'Day - there is a thornless blackberry on the market which is far less invasive than the wild type. You might consider growing those. Then, there are a myriad of other berries that are equally delicious, such as red, orange and black raspberries, boysenberries, loganberries and the list goes onnn and onnnnn! LOL

When you decide where to put your blackberry "thicket", simply designate a perimeter, put a barrier edging of some kind around it and mow whatever comes up outside it. They can be VERY invasive (got one patch in an awkward place I've been fighting for years)and about as "angry" as sawbriars!!
If I were planting blackberries, I'd get the thornless variety like Skipper suggested. They reproduce well but are a lot more controllable, so just a couple of plants (I think they really come in bundles) would probably plenty within a year or two. I had a neighbor who planted two rows (maybe 20 or 25' each) of the thornless variety and his second year sold about a hundred quarts of berries, and almost that many canned or given to his children and friends.
But there's that Scottish streak that says since the one's I've got are free------


WileyR

http://gardentoeathealthy.com/

I bought some black raspberries earlier this year. They are supposed to be great tasting and with more nutrients even than blueberries. I planted those in a special place.
These blackberries were just outside the back fence and I thought I was lucky. But the thing here is that they are already all over my rose garden (in smaller versions) because I keep pulling them. They are on the opposite part of the property from where I found them, I don't know how, and can't stop them. This weekend I was planning to pull all of them, lay newspaper over the ground and cover with pineneedles or other mulch... And hope it works...

Covering them with newspaper and mulching heavily will take care of the worst of them, altho you'll probably have to watch around the edges of where you mulch since they will move horizontally sometimes and re-emerge outside the mulched area. once you've been without emergers for a year you should not have any more problems with them.

WileyR

Good luck with the things. You best option to get rid of the undesirable ones would to be to weed whack them, then cover with whatever.

I have been enjoying my wild black raspberries and should have wild blackberries in a week or so. Those darn blackberries can get unruly, plus their thorns are so much longer, sharper and aggressie than the raspberries.

That's what I'm doing this week. I'm pulling all the berries from the front yard and covering with newspaper, then mulching.
I transplanted some to the backyard, where they should be and hope they'll produce well there.
The good bearers from the outside of the fence had to be cleared out because of the HOA. Before clearing them I picked a bucket of berries and transplanted some...