[mdjlucan]

wots the best feed for them all so an opal plum tree

[DD.]

Just cover them it up with some manure after it dies down.

[stompy]

As DD says for the rhubarb.

For the plum tree (i have one the same, opal) give the ground a top dressing of BFB twice a year Spring and early autum around the base of the tree to the spread of the branches, then lightly work/rake it in to the top inch or so of the soil.

I also give the leaves a tonic of seaweed extract as they're flowering, not sure if this helps but i feel it does 

[sunshineband]

Just cover them it up with some manure after it dies down.

Just for a minute I thought you meant both rhubarb andd the plum tree 

I'll get my coat

[DD.]

You'll notice that the OP has edited his post since I replied. There was only mention of rhubarb when I did so.  

mdjlucan - it's generally not a good idea to alter the question once you've posted it and had replies!

[sunshineband]

You'll notice that the OP has edited his post since I replied. There was only mention of rhubarb when I did so.  

mdjlucan - it's generally not a good idea to alter the question once you've posted it and had replies!

    Well that is why then 

[mdjlucan]

sorry about that

[joyfull]

out of curiosity what is a rhubarb plum tree 

[Ice]

out of curiosity what is a rhubarb plum tree 

It's a plum tree with enormous leaves.  No, it's two separate questions Joy.

[joyfull]

no wonder I couldn't find one on google  - think I'd better slink off back to my chickens  .
Just as a note to this my plums are poor this year and my rhubarb never grew either 

[sunshineband]

out of curiosity what is a rhubarb plum tree 

mdjucjan added somehting in after the reply DD made --- manure on the rhubarb and at the roots of the opal plum tree    

try the 'manure on plum tree', Joy 

[joyfull]

that is so sad that this plant doesn't exist - I love plums and Jim loves rhubarb so rhubarb flavoured plums would have been perfect  .
Would well rotted chicken manure work for my plum trees?

[sunshineband]

It would do the job well, I should think, Joy