Hi Moggsue, yes you can put all the bulbs in the pot at the same time, just put a thin layer of compost in between each different kind. I usually put the largest, usually the tulips in the bottom & then layer up trying not to put the bulbs directly on top of one another so that they have room to grow up past each other. I only use multi-purpose compost & it works fine but you could use special basket & tub compost if you like which has added feed etc. in it (I think Miracle Gro do one).You can put bulbs in any time now up till about end of Nov. but the later you put them in the late they'll probably flower. If you're putting tulips in the ground it's better to leave them until Nov. or even Dec. to avoid 'tulip fire' but in pots it doesn't matter. I've just planted up all my pots & baskets with winter bedding & bulbs & they brighten the place up.