Posted: 24/07/2014 at 08:10
Home made pots are good but always need drainage holes. As you have had them in the pots for such a short time you will probably be OK. It seems you haven't added more water since sowing. I still think that outside is best. even though it might not be ideal in your eyes it is almost certainly going to be better than your attic.
Have they poked their noses above ground yet? If not don't worry because a week or two is still a very short time for some seeds. However, why not start some more in new pots outside. Could you invest in your first seed trays or ask a kind gardening neighbour to let you have some largish used plant pots, say 6 to 8 inches across ( size doesn't really matter anyway). Gardeners always have loads of old pots, and are always lovely people and happy to give pots away to help a new gardener. You will make new friends too, and he or she will be a source of good local advice on what works for them in your conditions. Some garden centres also have old pots they leave out for you to take.
I agree heavy rain may not help but heat is good as is humidity to get things going. And remember we all had to start somewhere, and we old gardeners still have our setbacks, and every season is different. That's the joy of gardening! Keep posting, here to help.