It is yet unclear whether bulbs form in Scadoxus only under certain environmental conditions or if bulb formation is limited to just certain species.

This time the bulbs formed a clump rather than a rope.

Shortly afterwards, the sinovaginal bulbs form as two solid evaginations of the UG sinus.

During this rest period in a coldframe or cool cellar, the bulbs formed roots.

Although crocuses are starting to bloom and later bulbs are coming up and forming buds, a short freeze will not do serious damage.

Once naturalized this bulb forms a golden early spring carpet.

The arterial bulb forms the trabecular portion of the right ventricle.

The bulbs will form new roots and complete their cycle.

If they are planted in late summer where the soil is rich and drains well, the bulbs will soon establish themselves and form a delightful colony.

The practical reason for planting bulbs in fall is to allow the bulbs to form their roots.