Last evening I planted several snapdragons into small pots on my roof deck and 2 of the 4 have wilted within 24 hours already (about 3pm the following day.) I planted them all with the same potting soil and same fertilizer and gave them all a good initial water soaking. The soil is still moist and yet 2 of them are very wilted looking and 1 is falling over. So I don't think it's that they need water?? And hard to believe it's because they got too much water since it's only been 24 hours. They like sun so can't imagine it's that they are getting too much sun (and the other 2 next to them are fine). They all receive the same amount of shade/sun - about 5 hours of sunshine from Noon to 5pm. Anyone know what the problem may be and what I can do to save them? Thanks!