Coast Live Oak

Planting

Plant your Coast Live Oak in full sun with well-draining soil - it tolerates clay and adapts to various soil types, though it prefers deep loam. Choose a location where its roots can be shaded once established; you'll mulch around the young tree or plant native understory plants like Toyon or Manzanita nearby to keep roots cool. Space it with room to grow, since mature trees reach 30 to 80 feet tall. Fall through early spring is ideal for planting in the Bay Area.

After Planting

Water weekly for the first year after planting, then cut back to once a month until your oak reaches about 10 feet tall. Once established, avoid watering during summer months - this tree is very low-water and actually prefers drier conditions. The #1 mistake is overwatering or fertilizing: skip the fertilizer entirely, as oaks build their own soil fertility over time through leaf drop and naturally develop the fungi they need to thrive. Let fallen leaves stay on the ground as natural mulch.

Birds

criAcorn Woodpecker

Seeds · Year-Round

Stores acorns year-round in granary trees; creates and maintains woodpecker holes

criCalifornia scrub-jay

Seeds · Fall

Primary acorn disperser and cache-maker; critical for oak regeneration Sep-Nov

higAmerican Crow

Seeds · Fall

Acorn harvesting and caching Sep-Nov

higBand-tailed Pigeon

Seeds · Fall

Acorn consumption during fall migration and overwintering Sep-Mar

higCommon Raven

Seeds · Fall

Acorn foraging and consumption Sep-Dec

higCooper's Hawk

Nesting · Spring

Nesting in dense oak canopy for concealment Mar-Jun

higGreat Horned Owl

Nesting · Year-Round

Nesting habitat in large oak cavities and branches; year-round resident

modBarn Owl

Nesting · Spring

Nesting in oak cavities Feb-Jun

Mammals

criWestern gray squirrel

Seeds · Fall

Acorn harvesting and caching Sep-Nov; essential seed disperser and predator

higCalifornia Ground Squirrel

Seeds · Fall

Acorn foraging and caching Sep-Nov for winter food stores

higMerriam's chipmunk

Seeds · Fall

Acorn harvesting and caching Sep-Oct; overwinters on stored acorns

modDeer

Foliage · Year-Round

Browse on leaves, twigs, and acorns year-round; important winter browse

Insects

modAlkali bee

Pollen · Spring

Native bee foraging on oak-associated flowers and catkins

modCalifornia tent caterpillar

Larval Host · Spring

Larval host plant; caterpillars defoliate oaks Mar-May

modHoney bee

Pollen · Spring

Pollen source from catkins and understory flowers during oak bloom Feb-Apr

modPropertius Duskywing

Larval Host · Spring

Oak-specialist butterfly; larval development on coast live oak foliage