Bulbs
Bulbs are the produce type for Biochemical plants.
They can be popped off the plant by right-clicking
it when it's fully grown.Bulbs can
be smelted in a furnace to obtain the final resource
(e.g. spider eyes and ender peals).
The colour of each bulb matches the colour of the
resource it smelts into.
Getting seeds from bulbs in 1.12.2
In 1.12.2, bulbs can be thrown for a chance at
getting more seeds by right-clicking the bulb. When
it lands, it has a chance of spawning seeds. Throwing
the bulb will destroy the item.
Getting seeds from bulbs in 1.13.2/1.14.4
In 1.13.2 and 1.14.4, bulbs have changed slightly. They're
now smashed, by holding right-click. If you're lucky,
seeds will spawn within 5 block of you. This will destroy
the item.