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Category Archives: Traditional Art

Tunicate Bulbs

The Garden Artist Posted on March 26, 2017 by Mary AhernFebruary 27, 2020

Tunicate bulbs are some of the most familiar bulbs we come in contact with both in and out of our gardens.

Many underground plant structures are generally named bulbs. A definition of a bulb is a plant that incorporates its entire life cycle in an underground storage unit. Technically true bulbs are compressed stems surrounded by fleshy leaves acting as food storage organs. They are in the Monocot family of plants.

Graphite Drawing of a Onion and Garlic bulbs by the Artist, Mary Ahern

Graphite Drawing of  Onion and Garlic bulbs by Mary Ahern.

Bulbs can be further classified by looking at their various growth habits. Some of these “bulbs” are actually further classified as “true” bulbs, corms, tubers and rhizomes. Examples of these bulbs respectively are: narcissus, crocus, dahlia and canna. 

True bulbs are represented by two classifications, tunicate and imbricate as represented by onions and lilies in that order. 

Tunicate bulbs have a dry thin paperlike sheath surrounding them which helps to prevent them from drying and improves their storage capability. The basal base plate along with the tunicate sheath hold the bulb together. Roots emerge at the bottom of the basal plate.

We enjoy these bulbs both in the kitchen and in our gardens. Our cooking is enhanced by the addition of the tunicate bulbs of onions, garlic and shallots. The joyous colors in our early spring gardens are presented by our daffodils, tulips and hyacinths. 


 

Posted in Botanical Art, Horticultural Info, Plants, Traditional Art | Tagged Art, Botanical Art, Bulbs, Drawing, Gardening, Horticulture, Illustration

What are bulbs and how do they differ from corms, tubers and rhizomes?

The Garden Artist Posted on February 19, 2017 by Mary AhernMarch 26, 2017

The term “bulb” is used by most people to refer to plants that have underground, fleshy storage structures. Only some of the plants commonly called bulbs actually are bulbs. The general definition of a bulb is any plant that stores its complete life cycle in an underground storage structure. These underground storage structures store nutrient reserves to ensure the plants’ survival.

Tubers, rhizomes, corms, and bulbs actually all serve the same purpose, just in a different way. They are each a storage unit for food that gives the plant the energy it needs to grow, bloom and complete its lifecycle each and every year.

The energy is created and stored by the foliage’s photosynthesis. You’ve probably heard that it’s important not to cut back the foliage after the bloom has died. That is because the leaves need to have time to absorb energy for next year’s bloom. Each storage system takes differing amounts of time to perform this task. Examples would be Alliums and Daffodils.

Bulbs or bulb-like plants are usually perennials. They have a period of growth and flowering. This is followed by a period of dormancy where they die back to ground level at the end of each growing season.

As with perennials, there are bulbs that are hardy in our climate and others that must be overwintered as house plants or placed in dormant storage.

Bulbs can be broken down into five types of storage structures. These include: true bulbs, corms, (stem) tubers, tuberous roots and rhizomes.

"Leeks and Pearl Onions" a graphite drawing by the Artist Mary Ahern

“Leeks and Pearl Onions” a graphite drawing by the Artist Mary Ahern

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Posted in Horticultural Info, My Garden, Plants, Traditional Art | Tagged Art, Botanical Art, Bulbs, Gardening, Horticulture, Illustration

Anatomy and Propagation of a True Bulb

The Garden Artist Posted on January 15, 2017 by Mary AhernMarch 26, 2017

BULBS

Bulbs (which are referred to as “true bulbs”) grow in layers, much like an onion. At the very center of the bulb is a miniature version of the flower itself. It is composed of a shortened stem covered with modified leaves called scales. Helping the bulb to stay together is something called a basal plate, which is a round, flat area that are the beginnings of the roots on the bottom of the bulb.

Many plants such as daffodils form new bulbs around the original bulb. These bulbs, called offsets, develop from buds within the base of the mother bulb and produce new plants. When these bulbs become overcrowded, the flowers start to diminish in size. This is an indication that it is time to dig up and divide the bulbs.

Examples of True Bulbs: Tulips, Daffodils and Alliums commonly known as Onions

Tunicate Bulb Anatomy of an Onion by the Artist, Mary Ahern

After I finished the drawing I cut up the onion and put it in a stir-fry for dinner. Yummy!

 

TRUE BULBS ANATOMY

The true bulb has five major parts.

BASEL PLATE: bottom of the bulb which hold the bulb together and from which the roots grow

FLESHY SCALES:

primary storage tissue

TUNIC:

skin-like covering that protects the fleshy scales

SHOOT:

consisting of developing flower and leaf buds

LATERAL BUDS:

develop into bulblets or offsets

Posted in Botanical Art, Horticultural Info, Plants, Traditional Art | Tagged Botanical Art, Bulbs, Drawing, Horticulture, Illustration

Anemone coronaria in the Garden and in Art

The Garden Artist Posted on June 12, 2016 by Mary AhernDecember 6, 2017
Anemone coronaria in the garden of the Artist, Mary Ahern.

. Anemone coronaria

My Garden and my Art go side by side. Both require me to make aesthetic judgments about composition, scale, color, texture and style. When I’m deciding where to plant the flowers I’ve hauled home on my endless trips to the nurseries it doesn’t seem that much different to me then when I’m deciding how to compose them on a two-dimensional surface.

I think about what style I’m looking for, what colors will work together, whether the scale of the placement works for me. I think about the type of flower and texture of the leaves. I make decisions about the 3D composition of the garden much like the 2D composition decisions on a painting.

Anemone coronaria in a Watercolor Painting by the Artist, Mary Ahern.

. Anemone coronaria – Watercolor Painting also, available as a print.

The garden adds so many additional layers of complexity since the artwork is moving in time with nature, the seasons, the elements, and time. The painting remains caught in a moment.

Capturing that ephemeral moment is so gratifying to me in my Fine Art. I control it, unlike my Garden which is usually out of control.

This watercolor painting is available directly from me, Mary Ahern, as an archival print on Fine Art Paper, double matted and ready for framing.

Please contact the Artist directly for purchase information.

Posted in Botanical Art, Garden Artist, My Garden, Traditional Art | Tagged Art, Botanical Art, Creativity, Design, Flowers, Garden Artist, Garden Design, My Garden, Traditional Painting, watercolor

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