Ilex, or holly, is a genus of over 570 species of evergreen or deciduous trees, shrubs and climbers found worldwide. Growing conditions vary by species, but most are grown as slow-growing garden shrubs or trees in sun to part shade.
Family
Aquifoliaceae (Aquifoli family)
Grows as
Tree, Climber
Light
Part shade, Full sun
Water
Keep soil evenly moist while establishing, then water during dry spells; avoid waterlogging.
Soil
Well-drained, slightly acidic to neutral soil enriched with organic matter.
Temperature
Varies by species; most tolerate about -15 to 30 °C, with protection from harsh winter wind and frost for tender species.
How easy
Easy
Safety
Toxic: Berries can cause vomiting and diarrhea and are dangerous to children, with over 20 berries possibly fatal; leaves may cause diarrhea, nausea and stomach upset if eaten.
About
Ilex () or holly is a genus of over 570 species of flowering plants in the family Aquifoliaceae, and the only living genus in that family. Ilex has the most species of any woody dioecious angiosperm genus. The species are evergreen or deciduous trees, shrubs, and climbers from tropics to temperate zones worldwide.
The type species is Ilex aquifolium, the common European holly used in Christmas decorations and cards. Aside, other hollies are desired for other purposes, like yerba mate and yaupon for the beverage made from their leaves.
Safety
Holly can contain caffeic acid, caffeoyl derivatives, chlorogenic acid, quercetin, quinic acid, kaempferol, tannins, rutin, caffeine, theobromine, and ilicin.
Holly berries can cause vomiting and diarrhea. They are especially dangerous in cases involving accidental consumption by children attracted to the bright red berries. Ingestion of over 20 berries may be fatal to children.
Where it grows
The genus is distributed throughout the world's different climates. Most species make their home in the tropics and subtropics, with a worldwide distribution in temperate zones. The greatest diversity of species is found in the Americas and in Southeast Asia.
Text excerpted from the Wikipedia article Holly by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.