I planted a ceonothus, jasmine, hydrangea and hebe today. I left maybe 20-30cm between each. I could have left more, but it would've required pulling up some Pulmonaria which I was reluctant to do.
But now I'm worried I've not left nearly enough space for them to grow! Should I dig them up tomorrow and space out more?
Help! (I'm new to having a garden, can you tell?)