That's a good point, Christie! They WERE getting sun all day long in their previous position. Before reading your advise I moved the planter (with the bulbs in fresh mixture) to a side of my house, where they only get sun 1/2 a day. I will do as you say: water them only once a week and give them addittional nutrients (diluted liquid 'produce' from Californian worms every other week - is that OK?)
Thank you so much!