Plants
Articles about plant species, botany and vegetation.
Hornwort
Horse chestnut
Horseradish
Horseradish: description, chemistry, cultivation, and culinary uses
Horsetail
Horticulture
Horticulture: Science and Practice of Garden Plant Cultivation
Houseplant
Houseplant (indoor plant care, uses, and selection)
Huckleberry
Humulus
Humulus (hops): botanical profile, cultivation, and uses
Hydrangea
Hydrangea (Hortensia): description, species and cultivation
Hydroponics
Hymenocallis
Hymenocallis (spider-lily): a genus of bulbous Amaryllidaceae from the Americas
Hyoscyamus niger
Henbane (Hyoscyamus niger): description, toxicity, history and uses
Hyperaccumulator
Hyperaccumulator plants: species that concentrate metals in their tissues
Hyssop
Hyssopus (hyssop): small aromatic Lamiaceae genus native to Eurasia
Iboga
Iboga (Tabernanthe iboga): plant, chemistry, uses, and cultural context
Impatiens
Imperial lemon
Indian gooseberry
Indiangrass
Indigofera
Indigofera — genus of indigo-producing and leguminous plants
Inflorescence
Intercropping
Iridaceae
Iridaceae: the iris family — traits, history, and garden importance
Iris (plant)
Iron deficiency (plant disorder)
Ironbark
Ironbark (Eucalyptus): characteristics, ecology and uses
Irrigation sprinkler
Irrigation Sprinkler: Systems, Types, Uses, and Maintenance
Ixia
Jacaranda
Jacaranda — genus of flowering trees and ornamental shrubs
Jacaranda mimosifolia
Jacaranda mimosifolia — the blue jacaranda (fern tree)
Jackfruit
Jackfruit (Artocarpus heterophyllus): overview, uses, cultivation and facts
Jalapeño
Jalapeño: description, origin, culinary uses and distinctions
Jambul
Japanese plum
Jardin des Plantes
Jasmine
Jasminum officinale
Jazz (apple)
Jerusalem artichoke
Jerusalem artichoke (Helianthus tuberosus): overview, uses, and cultivation
Jerusalem Botanical Gardens
John Gould Veitch
Jonagold
Jonagold (apple cultivar)
Jostaberry
Jostaberry (Ribes × nidigrolaria): a hybrid currant-gooseberry shrub
Juglandaceae
Juglandaceae (Walnut Family): characteristics, genera, distribution, and uses
Jujube
Juncaceae
Juncaceae (rush family)