Two of my shrubs are in mixed borders. They're both getting too big and need pruning, BUT.....
One, Prunus Ko-jo no Mai, is beautiful in spring and autumn but not that interesting in summer. It's also outgrowing its space a little and beginning to cast too much shade. If I hard prune it now (can I safely do this? ) will I lose next year's flowers?
The other is a shrubby lilac with smallish fragrant pink flowers and it has a Clematis Betty Corning growing through it. Years ago I thought this was a brilliant idea. I would have the pink scented flowers of the lilac in spring, followed by pale blue scented bells in summer. What I didn't realise was a) how rampant Betty would become and b) how large the 'dwarf' lilac could grow - not huge but outgrowing my narrow bed and I want perennials to take centre stage at the moment.
So....can I hard prune the Shrubby lilac (syringa meyeri 'Palibin') and if so, when, without losing flowers next year? Also, Betty's rampant nature means she will be too big for growing through a dwarfer shrub. I could cut her back now and lose everything this year, try and dig her out and risk killing her, or live with a tangle this year and try and put in an obelisk next to the lilac!
Neither are next to a wall or fence, I should add.
What would YOU do?
Any advice, please? Thanks in advance!