Tree · Cupressaceae
Eastern Red Cedar
Juniperus virginiana
An architectural native evergreen that brings year-round structure and quiet privacy to a property.
Full sun
Every 10–21 days
USDA 2–9
30–39 ft · 9–12 m
Overview
Eastern red cedar is the kind of evergreen a garden leans on for years. It's a juniper rather than a true cedar, and across much of the eastern United States it has made itself at home on ground that defeats more demanding trees. Place it in sun and it grows happily in clay, sand, rock, or dry alkaline soil, asking for very little in return.
In a designed landscape its real job is shaping space, working as a screen, windbreak, or wildlife tree. Female plants carry frosty blue berry-like cones that draw waxwings, robins, and other birds through winter, turning a quiet corner into a lively one, while the dense foliage gives privacy and cover. The reddish, aromatic wood is the same cedar that scents lined closets and weathers into classic fence posts.
Think of it as a slow, permanent fixture, a tree that can stand for centuries and settle the bones of a garden. Two things shape where it belongs. It pushes into open grassland once fire stops checking it, and it hosts cedar-apple rust, so it should sit well away from apples or hawthorns in the wider planting.
Care
The short version: plant it in full sun on any well-drained ground, water it only while it settles, and let it become the easy, permanent backbone of the garden. It wants no feeding on most sites and little pruning, with the single rule of keeping it well away from apple and hawthorn trees.
Light
Set it in full sun for the fullest, most polished form. It tolerates light shade, but a shaded tree opens up and thins, losing the crisp shape that makes it such an effective screen or accent.
Water
After it roots in, this is one of the most drought-tolerant conifers of the eastern U.S., which makes it a low-maintenance choice for a busy household. Water new plantings through the first season, then let the ground dry between waterings and let it carry on with minimal fuss.
Soil
It suits almost any site, thriving in average, dry to medium, well-drained ground and adapting to clay, sand, shallow rock, and poor or dry alkaline spots at a pH from 4.7 to 8.0. The only place it refuses to settle is ground that stays wet underfoot.
Temperature
Its range is wide enough to anchor gardens almost anywhere, comfortable from -40°F to 104°F (-40°C to 40°C). Cold is no concern, and it holds its composure through heat and exposed, windy sites.
Humidity
Outdoor humidity is a non-issue for an established tree. What counts for keeping it looking its best is good airflow rather than moisture in the air, since crowded, damp foliage invites the tip blights that mar an otherwise clean form.
Feeding
On most sites it needs no feeding, which keeps the upkeep light. If growth genuinely lags, a balanced slow-release fertilizer in spring sets it right, but a settled tree on ordinary ground looks after itself.
Pruning
Pruning is minimal, though it shears cleanly into a screen or hedge if a tidy edge suits the design. Work in late winter to early spring, and remove any brown galls and dying tips while you do to keep cedar-apple rust from spoiling the look.
Repotting
Not applicable; grown as a landscape tree, not a houseplant
Size & spacing
A mature tree reaches about 30 to 40 feet (9 to 12 m) tall with a spread of 10 to 20 feet (3 to 6 m), so plan its place with room to fill out. Its steady, moderate growth means the design it anchors comes together gradually rather than overnight.
When to plant
There's no sowing season to plan around, which keeps this an unhurried addition. Set new plants in spring or fall so the roots can establish before the extremes of the year, and look forward to the blue cones on female trees ripening from fall into winter for a quiet seasonal note.
Northern hemisphere
Southern hemisphere
Typical months for a temperate climate: start earlier in warm zones, later where spring frosts linger.
- Plant: Spring or fall
- Harvest: Non-flowering; female trees bear frosty blue-green berry-like cones that ripen fall to winter (Sep-Feb)
Hardiness
USDA hardiness zones: 2–9
Temperature: down to -46°C
Troubleshooting
Designed into the right spot, an eastern red cedar stays handsome with almost no attention, though a few pests and fungi can occasionally mark the foliage. Most of it reads worse than it is and rarely spoils the overall picture. Match what you notice below and act before it spreads across the planting.
Orange jelly-like horns rising from swollen brown galls in spring
This is cedar-apple rust and its relatives, fungi that move between the cedar and nearby apples, crabapples, or hawthorns. On the cedar itself the damage is light, just galls and a little twig dieback that barely register from across the garden. Prune out the brown galls in late winter before the horns form, and keep the tree well away from any rose-family plants in the planting.
Fix:
- Prune out and destroy galls and infected branch tips in late winter to early spring before horns form
- Do not plant near apples, crabapples, hawthorns, quince, or serviceberry
- Apply a myclobutanil fungicide in early spring on high-value plants before infection (copper and sulfur are less effective)
Foliage-clad silk bags suspended from the boughs
Those camouflaged bags are the work of bagworm caterpillars, which strip needles and thin the crown until the silhouette starts to look ragged. Each bag is built from bits of the tree's own foliage, so they blend right in. Pick them off by hand from fall through early spring to remove the overwintering eggs, then spray Bt while the larvae are still small in late spring.
Fix:
- Handpick and destroy bags in fall through early spring to remove overwintering eggs
- Apply Bacillus thuringiensis or an approved insecticide while larvae are small in late spring to early summer
Fading, stippled foliage crusted with tiny specks up the stems
Those fixed specks are juniper scale, and the fine stippling can also point to spider mites. Both drain the foliage and leave it dull and discolored, dimming the rich color the tree is grown for, sometimes with sticky honeydew or sooty mold. Smother overwintering scale with horticultural oil, treat the crawlers as they emerge in late spring, and cut out any branch that is badly infested.
Fix:
- Apply horticultural oil to smother overwintering scale
- Treat crawlers with horticultural oil or an approved insecticide at the crawler stage
- Prune out and destroy heavily infested branches
Scattered tips turning brown with tiny black flecks on dead twigs
Dead tips dotted with tiny black specks signal Phomopsis or Kabatina tip blight, fungi that move in after wet weather. On a healthy tree the effect is mostly cosmetic and easily tidied. Prune the dead twigs during a dry spell, skip overhead watering, and give the branches room so air can dry the foliage and the form stays clean.
Fix:
- Prune out dead and dying twigs during dry weather
- Avoid overhead watering and improve air circulation
- Apply an approved fungicide to new growth on high-value plants if needed
Toxicity
For a household that wants beauty without worry, this one fits. Eastern red cedar is not a poisoning hazard, it sits off the ASPCA toxic lists, and people, pets, and livestock all share a garden with it comfortably. The only fine print is mild: a passing stomach upset if an animal eats a lot of the oily foliage or berries, and skin that the prickly young growth and aromatic sap can irritate.
Safe for
People · Cats · Dogs · Horses · Rabbits · Livestock · Birds
Cats Mild
Cats are not on the ASPCA poison lists, so a nibble is no real danger. One that chews a lot of the foliage or berries might get a loose stomach for a day, and the aromatic oils tend to put many cats off it anyway.
Dogs Mild
Dogs are safe around it in passing, though one that eats a pile of the blue berries or foliage may end up with mild diarrhea. Nothing alarming, but keep an eye out if a large amount goes down.
Horses Mild
Horses graze near it without trouble. Eating a real quantity of the oily foliage or cones can stir up a passing stomach upset, so it is not a feed to rely on, though it poses no poisoning risk.
Rabbits Safe
Rabbits browse juniper foliage in the wild and handle it fine. There is no toxin here to worry about.
Livestock Safe
Goats, sheep, and cattle can browse this native conifer without any poisoning risk. When they graze heavily on the oily foliage, it tends to unsettle the rumen rather than genuinely harm the animal.
Birds Safe
The berry-like cones are a winter staple for cedar waxwings, robins, and many other birds, which spread the seed as they feed and bring the garden to life in the cold months.
People Safe
There is no poisoning hazard for people. The prickly young foliage and aromatic sap can irritate skin, so wear gloves when you prune, and do not treat the berries as food.
Not a poisoning hazard, but foliage and the blue berry-like cones can cause mild gastrointestinal upset (such as diarrhea) if eaten in quantity, and the aromatic volatile oils are mildly irritating. Sap and prickly young foliage may irritate skin; wear gloves when pruning.
Varieties
The design appeal is in the range of silhouettes, from a slender column that frames a view to a low shrub that softens a bed. A few selections come up again and again where gardeners want a particular look.
'Canaertii'
A favorite ornamental selection prized for the dense, narrow pyramid of rich dark green foliage studded with frosty blue cones.
'Brodie'
An upright columnar tree whose soft blue-green foliage forms a clean, narrow screen or vertical accent.
'Taylor'
A tightly fastigiate column reaching about 20 to 25 feet tall but only 3 to 4 feet wide, made for a slim upright accent in a tight space.
'Grey Owl'
A low, spreading shrub clothed in silvery gray foliage rather than the usual upright tree, ideal for softening a bed.
How to propagate
Growing your own takes the long view, which suits a tree meant to anchor a space for decades. Seed asks the most patience, while cuttings and grafting let you carry a chosen cultivar's form forward into the next part of the garden.
SeedDemanding
Sow stratified seed in fall or spring · Months to over a year; seed has dormancy requiring cold stratification and can be slow and erratic to germinate
The tree self-seeds freely in the wild, yet raising it on purpose is a project for the patient gardener. Collect cones from a female tree in fall or winter, clean off the flesh, and give the seed a long cold stratification to break its dormancy. Even then, germination comes slow and uneven, often anywhere from a few months to more than a year.
Stem cuttingsModerate
Take semi-hardwood cuttings in late summer to fall · Several months to root
Cuttings are the usual way to copy a named cultivar and carry its form and foliage color into a new part of the garden. Take semi-hardwood cuttings in late summer to fall and expect them to need several months to root. It runs slower than rooting a houseplant, but it is far more reliable than seed for getting the plant the design calls for.
GraftingDemanding
Dormant season · One season
Grafting is mainly a nursery method, setting a selected cultivar onto seedling rootstock. The work is done in the dormant season, and a successful union establishes over a single growing season. It takes skill, so most gardeners leave this one to the growers and simply buy the look they want.
Myths
Eastern red cedar is a true cedar.
The name suggests otherwise, but this is a juniper in the cypress family, not a cedar at all. True cedars belong to the genus Cedrus in the pine family. The everyday name is simply a long-standing misnomer.
Cedar-apple rust ruins the cedar it infects.
On the cedar the rust does little more than raise a few galls and kill back the odd twig, leaving the tree's presence in the garden untouched. The serious harm lands on nearby apples, crabapples, and hawthorns, with the cedar serving only as the alternate host that completes the fungus's life cycle.