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in Problem solving
We had a large sumac in our front garden which for various reasons, has had to be cut down. But now, not only is the stump sprouting new leaves, but mini sumacs are now sprouting all over the front garden lawn, up to 30 feet away from the main tree. I am assuming the tree has sent suckers out all over the place, but how do I get rid of them and kill the tree once and for all? I've been obsessively pulling the sproutlets up, but they spring back up as quickly as I pull them out. I have already used a woody plant/tree stump killer on the stump, but wonder if it's not working because the sap is still rising?
You need to use it on the young pieces as well - the problem is that the whole root system will sprout.
It'll take a bit of time, but instead of pulling up each new tree, paint it with your weedkiller and the root will eventually die.
That's helpful, thank you. I wondered if that might be the case: I counted today's sprouting bits, but stopped at 28. Sigh!
Eat it. I'd keep one bit in a big pot - you could collect the 'fruit' and use them as a spice - revenge!
Alys Fowler says
"Rhus typhina is a large, tree-like shrub with leaves that blaze orange-red in autumn. The female plants are crowned with flame-shaped, winter-persistent clusters of red fruit that, when dried, make a passable substitute for sumac, the lemon-flavoured spice used in Lebanese and Turkish cuisine. Native Americans soaked the fruit to make pink lemonade. It does best in full sun and doesn't mind poor, free-draining soils. Do not confuse with the toxic R. verniciflua."
this is a naturally suckering tree anyway but cutting it back simply makes it go haywire as you have now discovered.
every shoot you see needs to be sprayed with strong stength glyphosate but not in the lawn. In the lawn a combination of lawn weedkiller and mowing....I would use secateurs or scissors to cut every shoot seen to ground level and do this as often as you can.
this is definitely not a plant for the garden. Never be tempted even by its brilliant red/yellow/ orange leaves in autumn
I have a rhus typhina dissecta which has more interesting foliage and is glorious in spring and autumn and a great shape in winter when bare. I wouldn't be without it but I do have the space to let it grow as it pleases.
As indicated above, pruning it evokes a rapid response to propagate itself from its roots and each shoot needs killing off with repeated applications of glyphosate or similar mixed according to the packet instructions. Do not be tempted to do extra strength as it doesn't help and will cost you more.
You'll nee to be patient and vigilant but it will give up eventually.