Dig holes and plant the ranunculus bulbs 2' deep and 4'-6' apart. The bulbs look like small, dark bunches of bananas, a curious shape that makes it easy to determine which side is up and which is down for planting. Tuck your ranunculus into the planting hole with the 'bananas' pointing down.

Link to website is below. I planted mine this way, but they never germinated. I think they just rotted. Good Luck.

Here is a link that might be useful: instructions

Hi! I planted ranunculus bulbs in a large planter this past April. I soaked them in luke warm water for one hour (After doing a little reading up on soaking the bulbs I only went w/ one hour. A 24 hour soak can turn them to mush.) and then planted them (toes/bananas down) two inches deep. They spent many sunny days in April on my south deck and I brought them in at night. I had buds popping within a few weeks. Now it's June 1st and my ranunculus are huge! I planted several colors all in one large container, so once they begin to bloom it will be quite the display. They receive full sun on my deck and I water them religiously. Good luck!!

How often do you water them?