All About Bulbs
is a promise of a plant to come. These "packaged plants"
each have a complete miniature plant inside along with its
The word bulb describes plants that grow from an underground
mass of food storage tissue. True bulbs, like tulips and
daffodils, contain a complete miniature plant surrounded
by fleshy scales attached to a basal
plate from which plants grow.The scales are mostly carbohydrates
and nourish the young plant. True bulbs can be either tunicate,
with a papery covering such as onion or tulip, or non-tunicate,
with no paper covering such as over the fleshy scale like
leaves of a lily.
If a bulb is sliced in half horizontally, you will see
rings formed by the scale
leaves. These scale leaves store food for use by the
bulb as it grows. If you slice a bulb vertically, you should
be able to find leaves, stems, and even flower buds. You
can use an onion or use some of the paperwhite narcissus
bulbs that will be used in the planting activity.