Sabrina: My suggestion would be to leave them there as they are for at least one more month. I would suggest you remove bottle from those that have sprouted and are growing leaves. Just keep watering them for the time being. I am not well aware of your climate so can't say when is the right time to shift them in pots or other places. But if they are removed before they develop healthy roots, they are likely to perish.
I planted quite a few cuttings in a bed in Feb. They sprouted by mid march and by the time they grew up into reasonable plants (for shifting), it was already hot and I couldn't shift them. So now, they are there in the same bed and I will take them out not earlier then Sep when it gets cool.
What I did I gave the bed a 2" layer of dry leaves which were available at that time. The are keeping the bed moist and are also decomposing providing nutrition to the cuttings. I am just watering them and they are growing well, many of them have started blooming too though I am pinching the blooms.
best regards
