Place where an animal or plant species lives naturally. In ancient Natural History treatises, the description of each species would begin with the word ‘habitat’
Heather
Hedge
A compact group of bushes or large herbs.
Hedgerow
Row of bushes or hedges used to limit a plot of land.
Heliconia
Tropical Caribean Heliconia.
Herb
Term generally used to refer to plants without woody stalks, like the begonia or lily; plant that develops little or no woody tissue.
Hermaphrodite
Flower having stamens and pistils.
Horticulture
Cultivation of plants, caring for vegetable gardens, orchard and gardens; researches growing and producing useful or ornamental plants (floriculture is a branch of horticulture that deals exclusively with ornamental flowering plants).
Humus
Mixture of plants and other partly decomposed plant parts, mixed with soil to enrich it with nutrients. Humus presents bacterial properties and makes the soil mix more porous. It can be found under deciduous trees or prepared with decomposing leaves. The term humus (or compost) can also be used to define the material formed by decomposition of animal and plant remains; vermicompost (or worm humus) is used to define the mix resulting from worm excrement and the soil used for its production – this mixture is extremely rich in nutrients that enrich it and give porosity to the soil used in plant cultivation.
Hyacinth
Hybrid
Plant derived from two genetically different parents. Crossed pollination is common among plants of different species within the same genus. Plants that originate from such crosses are called primary hybrids and generally possess some of the characteristics of both parents, but can be more similar to one than the other. Crossed pollination is also possible, although rare, among plants of different genera, as Fatshedera, a hybrid between Fatsia with Hedera. These crosses are called bigeneric or intergeneric hybrids. Several naturally generated hybrids are sterile.