I tried a garden for the first time last year, but i didnt really have any mulch on the soil, so everything ended up baking and dying. Last fall, i added brown corrugated cardboard over everything, and then a few inches of wood chips. My guess is that it averages three inches deep now, about four months later. I want to start planting next month, and i have lots of different flowering plant seeds for pollinators. My question is, do i need to make a hole through the cardboard and mulch for every single seed, or would the seeds grow if i just made a hole in the mulch? i am unsure if it is too deep to germinate, and punching a hole in the cardboard is some extra effort, although i imagine its pretty soft now. thanks.
From my experience and seeing experience of other people who use cardboard, you definitely need to cut a hole for each planting area. I think most folks put some good soil or compost in the hole to plant in.
If you don't put a hole in the cardboard the roots are going to tend to grow on top of it and die.
I've done quite a bit of research regarding the use of cardboard in growing a garden and I would definitely say to punch a hole in the cardboard. I bought a quality used dibble for that purpose which seems like the perfect tool for it.