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Live Oak
The iconic, moss-draped evergreen oak of the Deep South - a wide-spreading, centuries-old tree of sweeping horizontal limbs that defines the coastal Southern landscape and shelters immense wildlife.
Safety notes Live oak is safe to grow and handle - a shade and wildlife tree, not a food plant. Its acorns are sweeter than most oaks' but are left to wildlife here. Site it with room for a century of spread; its low, heavy limbs reach far. Before removing an established live oak or pruning it heavily, check local rules: many Southern cities and counties protect mature oaks under heritage-tree ordinances (permits required, steep fines), and parts of Texas also restrict oak pruning timing for oak wilt.
Overview
The Southern live oak (Quercus virginiana) is the signature tree of the coastal South - the broad, evergreen giant whose massive horizontal limbs, often draped in Spanish moss, arch over old avenues and town squares from Virginia to Texas. It is not the tallest oak, but it may be the grandest in spread: a mature live oak commonly reaches only 40-80 feet tall yet spreads well over 100 feet wide, its heavy low limbs sometimes resting on the ground, and it can live 300 years or more.
Quick facts
- Sprouts in
- 30 daysRange: 14–60 days
- Soil temperature
- 65 °FRange: 55–75 °F
- Height
- 60 ftRange: 40–80 ft
- Spread
- 90 ftRange: 60–140 ft
- Cold
- Takes hard frostdamaged below 0°F
- Heat
- Struggles above 105°F
- Life cycle
- Perennial, lives about 300 years
- Save seeds
- About 150 days after plantingRange: 120–180 days
- Self-sows
- Yes, expect volunteers
- Soil
- Well-drained
- Water
- Medium
- Plant spacing
- 70 ftRange: 40–120 ft
When to plant
Fall transplanting is open for 19 more days.
- Transplant Sep 13 – Nov 8 Open now · 19 days leftAbout 6 weeks before to 2 weeks after your first frost (Oct 25 here)Zone 7a is the cold edge. Plant the hardier escarpment live oak (Quercus fusiformis, good to roughly 0F) or a proven local cold-hardy selection - standard Southern live oak can be damaged by hard freezes here.
Frost here: last around Apr 10 (Mar 27 to Apr 24 most years), first around Oct 25. Zone averages, your own yard may run a week or two either way.
Life stages
Establish, grow, repeat
Getting established and returning each season are different parts of the story.
Stage 1 of 3 · Getting established
Years 1-3 - young tree
About the first 3 years after planting
Care at this stage
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Water deeply while establishing
Water a young live oak deeply and regularly through its first 2-3 years, especially in drought. It grows faster than most oaks once settled in, but a steady first few years builds the deep, wind-firm root system that lets a coastal live oak shrug off hurricanes for centuries.
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Train one strong leader and lift the canopy slowly
Live oak naturally wants to branch low and spread wide. For a walk-under shade tree, train a single dominant trunk and raise the lowest limbs gradually over the early years; on a big open site you can let it sprawl its low, sculptural limbs to the ground.
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Give it enormous room
A mature live oak spreads far wider than it is tall - often 100+ feet across - and lives for centuries, its heavy horizontal limbs reaching over roofs and driveways. Site it far from buildings, pavement, and utility lines, and picture the tree at 100 years old, not at planting.
Months are typical seasonal windows; climate, variety, and plant age can shift them.
Watch out for
3 to know. 1 is high-risk: Oak Wilt. 1 is active in October.
Oak WiltSeverity High DiseaseSeason: Mar–JulWilting, yellowing or bronzing of leaves and rapid canopy dieback, often spreading outward tree-to-tree through a stand; veinal chlorosis on live-oak leaves.
Wilting, yellowing or bronzing of leaves and rapid canopy dieback, often spreading outward tree-to-tree through a stand; veinal chlorosis on live-oak leaves.
Consult a certified arborist - management may include trenching to break root grafts and fungicide injection of high-value trees; there is no simple cure once a tree is infected.
NEVER prune or wound oaks in the warm growing season - prune only in the cool dormant months and immediately paint any cuts or storm wounds; avoid moving oak firewood; sever root grafts between trees in known outbreak areas.
A deadly fungal disease that clogs the tree's water-conducting vessels, spread by sap-feeding beetles to fresh wounds and tree-to-tree through connected roots. Live oaks are highly susceptible in parts of their range (notably central Texas), where interconnected roots let it spread through whole groves.
Storm Limb BreakageSeverity Low DisordernowSeason: Jun–OctHeavy low limbs with narrow, included-bark unions, cracks, or excessive end weight; broken or hanging limbs after hurricanes and severe storms.
Heavy low limbs with narrow, included-bark unions, cracks, or excessive end weight; broken or hanging limbs after hurricanes and severe storms.
Remove broken and hanging limbs promptly and cleanly; for mature specimen trees, an arborist can cable or prune to support heavy historic limbs.
Train strong branch structure while young, avoid weak co-dominant unions, and prune (in the cool season) to reduce excessive end weight on very long limbs.
Live oak is one of the most storm-firm large trees, but its very wide, heavy horizontal limbs can occasionally split or break under extreme wind, ice, or their own weight, especially on trees with weak, included-bark unions.
Oak GallsSeverity Low PestSeason: Apr–AugRound balls, woolly patches, or bumps on leaves and twigs, each housing a developing insect; sometimes abundant but rarely harmful.
Round balls, woolly patches, or bumps on leaves and twigs, each housing a developing insect; sometimes abundant but rarely harmful.
None warranted; leave them. Heavily galled twigs can be pruned out in the cool season if you object to the look.
None needed - galls rarely harm the tree and support wildlife.
Tiny gall wasps and mites induce the tree to form bumps, balls, and woolly or spiky growths on leaves and twigs. Diverse and curious but essentially harmless, and part of the oak's rich insect community.
Good & bad neighbors
Plant nearby
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A native epiphytic fern that carpets live-oak limbs, greening up after rain and curling brown in drought - a harmless, characteristic aerial companion on old live oaks.
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The signature epiphyte of live oak - Spanish moss drapes the limbs harmlessly, living on the tree for support and creating the iconic moss-hung silhouette and extra habitat.
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A classic Deep South pairing of two evergreen native giants - magnolia's glossy leaves and huge flowers beneath or beside the moss-draped live oak evoke the coastal Southern landscape.
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Two keystone native oaks - the deciduous white oak inland and the evergreen live oak on the warm coast; together they anchor Southern woodland and feed enormous wildlife diversity. Give each vast room.
Varieties · 4
You pick one when you add Live Oak to your garden. Its days to maturity set your harvest window.
Southern Live Oak (Quercus virginiana)
The wild species: a broad, evergreen 40-80 foot tree spreading 100+ feet wide, with leathery dark leaves, sweet wildlife acorns, exceptional storm and salt tolerance, and a lifespan of centuries.
Variety details for Southern Live Oak (Quercus virginiana)
Immense wide-spreading crown of heavy horizontal limbs, leathery evergreen leaves, often draped in Spanish moss.
speciesnativeevergreenkeystoneThe iconic moss-draped tree of the coastal South.
Cathedral Oak
A selected live oak with a more uniform, upright-then-spreading habit and a strong central leader - a good choice where a predictable, majestic shade-tree form is wanted for parks, avenues, and large yards.
Variety details for Cathedral Oak
Uniform, vigorous live oak with a strong leader developing into a broad spreading crown.
cultivaruniformfast-growingstrong-leaderHighrise Live Oak
A narrower, more upright live-oak selection with a dominant central trunk and a tighter crown - useful for streets and smaller lots where the classic 100-foot spread won't fit, while keeping live oak's evergreen toughness.
Variety details for Highrise Live Oak
Upright, columnar-to-oval live oak far narrower than the wild sprawling form.
cultivaruprightnarrowurbanEscarpment Live Oak (Quercus fusiformis)
A closely related western live oak of the Texas Hill Country and Southwest, more cold- and drought-hardy and often smaller than Southern live oak - the better 'live oak' for drier, colder inland sites in Texas and Oklahoma.
Variety details for Escarpment Live Oak (Quercus fusiformis)
Smaller, tougher live oak with narrower leaves and spindle-shaped acorns, tolerant of dry limestone soils.
speciesnativecold-hardydrought-tolerant
Grower tips
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