Copy of `Parker County Master Gardener Association`

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Parker County Master Gardener Association Category: Agriculture and Industry > Herbiculture Date & country: 27/01/2014, USA Words: 444

Calcium
(Major Nutrient) Weak growth occurs along with lack of flowering and fruiting when there is calcium deficiency. Calcium is necessary for plants to form calcium pectate, the compound that binds plant cells together. Lack of calcium causes blossom-end-rot in tomatoes and certain other vegetables.

Bulbous Plant
A somewhat vague term for plants that produce fleshy storage organs at their base. Included here are bulbs, corms, tubers, etc.

Bulblet
A small bulb that develops from a larger bulb.

Bud Union (Budding Union)
The part of the stem where the scion joins the stock following propagation by budding.

Budding (Bud Grafting)
This is the union of one bud and a small piece of bark from the scion with a rootstock. It is especially useful when scion material is limited. It is also faster and forms a stronger union than grafting.

Bromeliad
Any member of the pineapple family (Bromeliaceae).

Broadleaf Weed
Any weed belonging to the group of plants called dicotyledons.

Border
A garden area that may be longer than it is wide, and may be used to divide or separate parts of the landscape. In a landscape, it is a grouping of plants that border some element (examples: a walkway, a driveway or a lawn). Borders come in all shapes and styles such as formal, cottage, perennial, shade or whatever meets your needs.

Botrytis
A group of funguses that cause certain plant diseases; also, a disease caused by such a fungus.

Bolt
To suddenly sprout a stem and bear flowers, often in response to heat or drought. When lettuce, spinach and other cool-season greens bolt, the leaves become tough and bitter and the crop must be replaced.

Blanching Box
Box constructed to keep light from certain edible crops inside the box.

Bleeding
The abundant loss of sap from severed plant tissues.

Blended
A flower which has one color gradually merged with another.

Blind
Term applied to a mature bulb that produces normal foliage but fails to flower.

Bell Jar
A large glass jar shaped like a bell, measuring about 18-inches across, used to protect tender plants. Now replaced by the cloche.

Berm
A designed raised planting area often in front of a house or building.

Berm
A narrow raised ring of soil around a tree, used to hold water so it will be directed to the root zone.

Berry
A fleshy fruit in which the seed or seeds are buried.

Blade
The portion of the leaf, which is divided from the sheath by the collar and ligule. The length, width, type of tip and roughness or smoothness are a few of the characteristics of various species.

Basal Plate
The disc of tissue to which the scales of a bulb are attached.

Basal Rooting
A root system arising from the basal plate of a bulb

Bearded
A petal bearing a tuft or row of long hairs.

Bed
A planted area designed to be viewed from all sides.

Bedding Out
The cover of most or all of a bed or border with a temporary display.

Auricle
A pair of appendages protruding from the side of the grass leaf at the junction of the blade and the sheath. Auricles may be blunt, large and claw-like and may or may not have short hairs attached.

Axil
The angle formed between an axis (such as a branch) and any organ growing from it.

Axis
An imaginary straight line around which all or part of a garden design is arranged.

Basal Leaf
A leaf that arises directly from a bulb, corm etc. and not from a stem.

Aschelminthes
Roundworms, trichina.

Asexual Plant Parts
The vegetative parts of a plant. The vegetative parts, which include roots, stems, shoot buds and leaves, are not directly involved in plant reproduction. However, they are often used in asexual or vegetative forms of reproduction, such as cuttings.

Arthropod
Insects, spiders, crayfish, millipedes.

Aquatic Plants
Plants that grow in, live in or live on the water.

Arborist
An individual trained in the care of trees.

Analogous Colors
Related, harmonious colors.

Angiosperms
In the plant kingdom, all flowering plants are in this category. Angiosperms are further divided into monocotyledons (monocots) and dicotyledons (dicots). Although monocots and dicots are similar in many ways, there are differences in number of seed, leaves, number of flower parts, leaf vein patterns and root structures, as well as physiological differences such as response to weed killers.

Anther
The pollen-bearing part of a stamen.

Anti-transpirant
Any product, compound or aid used to reduce the loss of water vapor through a plant

Alternate
Leaves or buds that arise first on one side of the stem and then on the other. Compare opposite.

Amend
To incorporate an organic or mineral material such as compost, rock powder, sphagnum peat, fertilizer or lime into the soil to enhance its fertility or structure, or adjust its pH.

Actinomycetes
A group of microorganisms.

Acute
Pointed.

Adapted
Plants originally found in other parts of the nation or world that thrive in your local area.

Algae
A group of lower plants without true stems, roots or leaves (example - seaweeds).

All-purpose Fertilizer
Powdered, liquid or granular fertilizer that contains the three key nutrients: nitrogen (N), potassium (P) and phosphorus (K). It is suitable for maintenance nutrition for most plants and may also be called general-purpose fertilizer.