The idea of using guttering sounds like a good idea, but do you drill holes in the bottom for drainage or is that not necessary?
No, you don't have to drill any holes, excess water just dribbles out of the ends. Though Sarah Raven (who's also a guttering devotee) does point out that you do have to water them a bit more than conventional trays/modules.
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No, you don't have to drill any holes, excess water just dribbles out of the ends. Though Sarah Raven (who's also a guttering devotee) does point out that you do have to water them a bit more than conventional trays/modules.