G

GALL – the unusual and abnormal growth on a plant caused by insects, bacteria and fungi.

GENUS – is the way of naming the plants.

GERMINATE – the process of transforming the seed’s embryo into a seedling.

GIRDLING – The choking of a branch by a wire or other inflexible material that occurs  in woody stemmed plants that were tied down too tightly  to a stake or support.

GLASSHOUSE – is what the British called for a greenhouse.

GRAFTING - The uniting of a short length of stem of one plant onto the root stock of a different plant. Often done to produce a hardier or more disease resistant plant.

GRANULAR FERTILIZER – Dry fertilizer in pellet form.

GREENHOUSE – A glass building that controls the temperature, humidity, with the right sunlight.

GREEN MANURE – A crop that is grown and mixed to the soil to fertilized it.

GROUND COVER - Plants that cover bare earth and create a uniform appearance.

GROWTH REGULATOR – Commercial chemical to dwarf a plant.

GYPSUM – A mineral of calcium sulfate that is added to the soil. It helps to improve clay soil structure.

H

HABIT – Plants  grow vertically, laterally, or rounded.

HALOPHYTE – Plants that can accept less or more salt in the soil. 

HARDEN OFF – The gradual adjustment of greenhouse or any indoor plants to a colder condition.

HARDINESS – The ability of the plant to tolerate a low temperature or frost without artificial protection.

HARDPAN – Compacted soil from construction. Water will run off and plant roots can not penetrate the layer

HARDSCAPE – A name given to garden structures and features.

HEADING BACK – Cutting an old branch or stem to a stub or twig.

HEAVING – Is when the soil buckles upward caused by climate change.

HEDGE – Suitable trees, shrubs, or bushes planted relatively close together so that the branches will intertwine to provide a barrier fence for a windbreaker or privacy.

HEEL CUTTING – Cutting of the side branch into smal pieces of the main stem.

HEELING IN – A temporary planting form until plants can be put in its permanent place. The plant will benefit from the soil temperature.

HERB – Plants that are mostly medicinal or flavoring qualities, or its scented foliage.

HERBARIUM – A museum of collections of  dried specimens

HERBACEOUS – A non-woody stem plant.

HERBICIDE – Any chemicals that will kill plants. T

HIGH SHADE -It is the shade beneath trees that have been cut back to get some light in.

HONEY DEW – The sweet and sticky syrup secreted by aphids and other sap-sucking insects. 

HORTICULTURE – The art and science of gardening.

HOST – Any plant material that will supports parasite. 

HUMUS – This is the black or brown organic residue of decayed vegetable, leaves and other matter in the soil.

HYBRID – The offspring of two different varieties or species.

HYDROPONICS – A method of growing a plant in water containing dilute nutrients. 

I

IKEBANA – The Japanese term for formal flower arranging. S

INDIGENOUS – Plant species that are native to that region. 

INFERTILE  – Soil that has no nutrients.

INFLORESCENCE – The arrangement of flowers on the stem.

INORGANIC – A chemical or fertilizer which is not obtained from a source which is or has been alive.

INSECTICIDE – A synthetic or organic chemical used to kill or repel insects.

INSECTIVOROUS PLANT – Other term for carnivorous plants. 

INSITU – The act of sowing seeds or cuttings in the ground where they are to grow.

INVASIVE – Plant that spread quickly and crowd out other plants.

J

K

KERNEL – Edible part of nut.

KNOT GARDEN – A  garden of small dwarf shrubs or even herbs.