Hi, Marie,
It needs to be grafted. Even if it is viable, it will not come true to type. Keep in mind, too, that Laburnum seeds are highly toxic so you might want to consider removing them from the tree (if possible) if children/pets frequent your garden. Do you have this plant in your 'Plants I Have' list? If so, you will get full, monthly care instructions on what to do with it and when.
Kathy C
Replied: Wednesday 1st of June 2011 06:22 PM