Which way up should bulbs be planted? Always plant bulbs with the pointed growing tip facing upwards. If it isn't clear which is the top, then try planting bulbs on their side. Some tuberous plants such as begonias will be flatter than bulbs and don't have an obvious growing point.

What happens if you plant a bulb upside down?

It will still grow, even if it's upside-down, although the plant will be unnecessarily stressed and may eventually die if left upside-down. You can always dig up the bulb after it has finished flowering to see which side the leaves have emerged from (that's the top of the bulb).

What is the best way to plant bulbs?