I bought a Glencoe purple raspberry at enormous expense and and trying to grow new plants from tips, has anyone any suggestions. I pinned down the tips into pots but they have grown longer but no sign of any roots.
Loganberries and blackberries seem to know when to send down a shoot and root. Is a Glencoe raspberry similar.
Actually fruit quite nice but not a patch on Valentine.
I'd go with giving the layering an "assist" by slitting a little bit on the bottom of the stem, bending it gently at that point adn for good measure rubbing some rooting compound in....
chrisc
Thanks Chris will have a go at slightly damaging the stem and seem what happens.
Mine rooted all by its self with the tip touching the ground.
My lead shoot broke, so it produced three new ones but the down side of that is that none of them are anywhere near touching the ground. So I have had to supply them with pots on supports so they only have a limited area to root into.
I pinned the tips into the pots, but rather than root they have put on a spurt and are now sticking 6 inches out of the pots.
My loganberry roots itself very readily particularly along the fence line.