I just purchased Oasis Wedges for cuttings. The problem is, many of my cuttings are very thin, such as thyme, so they don't actually touch the medium. I put them in 2 weeks ago and still see no root growth. Last year I used peat/perlite and 1020 flats and I swear they rooted faster. I do prefer the individual cubes, however. My question is: Does the stem need to be touching the medium in order for it to root??? Thanks!