Heat Mat is a term used for an electric mat used to warm propagation containers. . For Heat Mat, the practical interpretation depends on the growing setup: container or in-ground tree, drainage, watering pattern, sunlight, season, and local weather.

In horticulture, Heat Stress describes plant stress caused by excessive temperature. . For Heat Stress, the practical interpretation depends on the growing setup: container or in-ground tree, drainage, watering pattern, sunlight, season, and local weather.

Heat tolerance is a plant’s ability to keep functioning during high temperatures. It can involve leaf cooling, root health, water uptake, fruit resistance to sunburn, and the ability to continue ripening under heat stress. Many figs enjoy warmth, but extreme heat can still cause wilting, sunscald, fruit shrivel, or poor container performance. Shade cloth, mulch, larger containers, and consistent irrigation can help reduce heat stress.

Heat Unit is a term used for a unit of accumulated warmth above a base temperature. . For Heat Unit, the practical interpretation depends on the growing setup: container or in-ground tree, drainage, watering pattern, sunlight, season, and local weather.

Heirloom Fig refers to an older fig maintained through tradition or family history.. . Heirloom Fig is most useful when it is tied to the exact plant part, season, cultivar, and growing conditions being described.

Herbaceous describes soft, non-woody plant tissue. Herbaceous stems are usually green and flexible rather than bark-covered and woody.

Fig trees are woody perennials, but their newest shoots begin as tender herbaceous growth before lignifying. This matters for pruning, propagation, pest injury, frost sensitivity, and how easily young shoots wilt.

Herbarium Voucher is a term used for a preserved plant specimen used as documentation.. . Herbarium Voucher is most useful when it is tied to the exact plant part, season, cultivar, and growing conditions being described.

Herbicide Drift refers to movement of herbicide onto unintended plants.. . Herbicide Drift is most useful when it is tied to the exact plant part, season, cultivar, and growing conditions being described.

In horticulture, High Tunnel describes an unheated or minimally heated covered growing structure.. . High Tunnel is most useful when it is tied to the exact plant part, season, cultivar, and growing conditions being described.

High-yielding describes a plant that produces a large amount of fruit relative to its size, age, and growing conditions. Yield can be measured by fruit count, weight, harvest duration, or consistency over years. For figs, high yield is meaningful only when the fruit actually ripens and has acceptable quality. A tree that sets heavily but drops, splits, or ripens too late may not be practically high-yielding in a particular climate.

In horticulture, Homonym describes the same name used for different plants.. . Homonym is most useful when it is tied to the exact plant part, season, cultivar, and growing conditions being described.

Honey Drop is a term used for a drop of syrup sometimes seen at the fig eye.. . Honey Drop is most useful when it is tied to the exact plant part, season, cultivar, and growing conditions being described.

Honey Flavor is a term used for fig flavor dominated by honey-like sweetness. For fig descriptions, Honey Flavor should be observed on ripe fruit when possible and paired with crop, weather, and photos, because fruit traits can change between breba and main crop or during a wet season.. . Honey Flavor is most useful when it is tied to the exact plant part, season, cultivar, and growing conditions being described.

Honeydew is a term used for sticky sugary waste produced by sap-feeding insects. Related glossary ideas include integrated pest management.. . Honeydew is most useful when it is tied to the exact plant part, season, cultivar, and growing conditions being described.

Horizontal branching describes branches that grow outward at broad angles rather than strongly upright. Branch angle affects light exposure, fruiting, training, and structural strength. In figs, more horizontal branches may be easier to manage and can expose fruiting nodes to light. Very low or heavily loaded branches may need pruning or support, especially on container trees or espalier forms.

In horticulture, Horticultural Oil describes oil spray used to smother some pests. Related glossary ideas include integrated pest management.. . Horticultural Oil is most useful when it is tied to the exact plant part, season, cultivar, and growing conditions being described.