Loblolly pine

Appalachian-Blue Ridge forests

Arizona Mountains forests

Atlantic coastal pine barrens

Blue Mountains forests

Central Pacific Northwest coastal forests

Chilean Matorral

Cross-Timbers savanna-woodland

Eastern Australian temperate forests

Eastern Cascades forests

Appalachian mixed mesophytic forests

What it needs

Conditions

Light

Full sun

Water

Consistent moisture

Spacing

30 ft

Habit

Large needled evergreen with a notably straight single trunk and an open, oval to rounded crown carried high on a long clean bole. Fast-growing, 40 to 50 feet in cultivation and 90 feet or more on a good wild site, and self-pruning in a stand so that mature trees in a plantation carry foliage only in the top third.

Care tips

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Use it for the wet corner, not against it. Moist acidic ground with poor drainage is where loblolly beats almost every other large conifer, and Missouri Botanical Garden lists it for rain gardens on exactly that basis.

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Do not plant it north of zone 6 and expect it to hold. It is not reliably hardy even at St. Louis, and a marginal-climate loblolly is a fast tree waiting for an ice storm.

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Plant it small. The growth rate makes large nursery stock pointless, and a container seedling will catch and pass a moved specimen within a few years.

Lifecycle

Planting

Plant in spring in full sun, in medium to wet soil. Missouri Botanical Garden is specific that it prefers moist, acidic soils with poor drainage - this is one of the few large conifers to specify for a low wet corner rather than against one. It needs full light; it will not develop in shade. Give it 20 to 40 feet of width and keep it out of alkaline ground.

Transplanting

Moves readily as young container or bare-root stock, which is why it is planted at industrial scale. Plant in spring. Large specimens are neither necessary nor economic given the growth rate.

Early growth

Very fast - the fastest-growing pine across most of its range, and the reason to choose it when a screen is needed within a decade. Little pruning is needed; the tree self-prunes its lower limbs in a stand and holds them when open-grown.

Maturity

Low-maintenance on a suitable site. The serious risks are bark beetles, especially southern pine beetle, which take stressed or crowded trees quickly, and various fungal diseases. Keep trees unstressed and unthickened rather than treating after the fact; a drought-stressed loblolly on a dry site is the classic beetle casualty.

Propagation

From seed, released from cones that ripen in the second autumn. Seed germinates readily with brief cold stratification, and natural regeneration on cleared moist ground is prolific to the point of being a management problem.

Native range

Native

Naturalized

Native across 15 US states; naturalized in 1 US state.

Worldwide native range.

AHS heat range

6-11

Native ecoregions

Naturally belongs in 12 ecoregions - its native range crosses a state or province each one spans (not necessarily this exact habitat).

Appalachian-Blue Ridge forests

Atlantic coastal pine barrens

Chihuahuan desert

Cross-Timbers savanna-woodland

Edwards Plateau savanna

Flint Hills tallgrass prairie

Mississippi lowland forests

Northeastern Coastal Forests

Piedmont

A dense, conical-to-narrow-pyramidal evergreen tree native to eastern and central North America, prized as a screening and foundation conifer. Flat, fan-like sprays of scale-like, aromatic yellow-green foliage clothe the tree from the ground up, and red-brown bark exfoliates on mature trunks. Wild trees can reach 40 to 60 feet but cultivated plants typically stay near 20 to 30 feet; small urn-shaped cones and dense evergreen cover make it valuable food and shelter for birds.

Climate notes

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Native to the southeastern United States, from southern New Jersey and Delaware south to Florida and west to eastern Texas and Oklahoma, from sea level to about 2,400 feet. POWO returned HTTP 403 for this species, so the WGSRPD range was taken from the World Checklist of Vascular Plants rows served through GBIF - the same Kew dataset, and this batch verified the method against two species POWO did answer for.

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The Kew native range stops short of New Jersey while Missouri Botanical Garden describes the species as native "from southern New Jersey" south. The narrower reading is mapped and the disagreement is stated rather than resolved: the northern coastal-plain edge of this species is genuinely marginal, and much of what grows there now is planted.

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Zone 6 to 9, and Missouri Botanical Garden notes it is not reliably winter hardy in the St. Louis area. This is a tree of hot humid summers and mild winters; cold, not heat, is what sets its northern limit, and ice loading on a fast-grown crown is a real failure mode at the margin.

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Its useful tolerance is wet ground. It accepts moist acidic soils with poor drainage, bottomland and flatwoods, and Missouri Botanical Garden lists rain garden as a suggested use - unusual for a conifer of this size. It also grows perfectly well on well-drained upland soil; the wet tolerance is a capability, not a requirement.

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It is the most widely planted timber tree in the United States, which is worth knowing before specifying it: much of the loblolly a visitor sees in the South is even-aged plantation, and the species' garden reputation is shaped by that rather than by how it behaves as an open-grown specimen.

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Plotwright assigns an editorial AHS heat range of 6-11 from the cited Missouri Botanical Garden and Kew-backed range guidance: loblolly pine is a tree of hot, humid summers and mild winters, with cold rather than heat setting its northern limit. Its need to avoid drought stress keeps this from being a universal dry-heat assignment. This is a conservative Plotwright interpretation, not a copied AHS rating.

Similar plants

Browse lateral options with similar roles, light needs, size, or native-range overlap; these are not filtered for a better climate fit.

Thuja occidentalis

American arborvitae

A medium-to-large native shade tree of central and eastern North America, reaching 50 to 80 feet with an ovate-rounded crown and large, asymmetric heart-shaped leaves. In June it carries pale-yellow, intensely fragrant flowers on pendulous cymes - each cluster hung from a distinctive strap-like leafy bract - that ripen into pea-sized nutlets. The fragrant June bloom is a premier nectar source: Missouri Botanical Garden lists it as attracting bees and butterflies, and the Lady Bird Johnson Wildflower Center flags it as having special value to both native and honey bees.

The only native U.S. holly with both spiny green leaves and bright red berries - an upright, pyramidal, broadleaf evergreen tree that slowly matures to 15 to 30 feet in cultivation (to 50 feet in the wild). Thick, leathery, deep green leaves bear spiny marginal teeth, and pollinated female trees carry showy red-to-orange drupes that ripen in fall and persist through winter as bird food. This is the classic "Christmas holly" of wreaths and decorations.

A small-to-medium understory tree of dry, rocky eastern-North-American woods, named for its drooping clusters of papery, sac-like seed pods that resemble the fruit of hops. The birch-like, sharply-serrated leaves turn an undistinguished yellow in fall, and reddish-brown male catkins persist on the bare branches through winter. Also called ironwood for its extremely hard, dense wood; tough, low-maintenance, and drought-tolerant once established.

A tough, medium-sized native tree of the eastern and midwestern United States, grown as much for its showy edible orange fruit as for its distinctive thick, dark gray bark broken into rectangular blocks. Small urn-shaped white-to-greenish-yellow flowers open in May and June, and the sweet fruit ripens after frost. Largely dioecious - a female tree needs a male pollinizer nearby to set fruit - and notably drought- and walnut-tolerant once established.

Full sun / Part shade

A small native deciduous tree (or thicket-forming, suckering shrub) of eastern and central North America, grown for clouds of fragrant white 5-petaled flowers that open in March before the leaves and for the edible red plums that follow in early summer. It forms a broad, spreading crown with attractive dark reddish-brown twigs that sometimes carry thorny lateral branchlets. A documented larval host for swallowtails and other butterflies, with flowers of special value to native, bumble, and honey bees.