Shrub · Lythraceae

Pomegranate

Punica granatum

Plant it in full sun, keep the water steady, and watch it load up with ruby fruit each fall.

Light

Full sun

Water

Every 7–⁠10 days

Harvest

150–⁠210 days

Hardiness

USDA 7–⁠10

Toxic to cats, dogs, horses & more
Pomegranate

Overview

The pomegranate has thrilled growers around the Mediterranean and the Middle East for thousands of years, and it still earns that devotion today. Better yet, it performs twice in a single season, throwing out red-orange flowers all summer and then loading its branches with fruit full of ruby arils by fall. Turn it loose and it builds a multi-stemmed shrub, or train it to a few clean trunks and it takes on real structure.

Once it digs in, this shrub practically runs itself. Hand it a full-sun spot, ground that drains, and a deep soak every week or so through the dry months, and it takes off from there. It powers through drought and shrugs off a fair bit of cold, with hardy types pushing through Zone 7, though it still craves a long, warm season to finish a heavy crop.

Two quirks are worth staying on top of, and both are easy wins: splitting fruit and eager suckers. Keep the watering even and clip the suckers as they shoot up, and this shrub rewards you with looks and harvests for decades on end.

Care

The short version: plant it in full sun and well-drained soil, water deeply every 7 to 10 days and hold that moisture even as the fruit ripens, prune lightly in late winter, and clip suckers as they shoot up.

Light

Pomegranates chase full sun, at least 6 hours of direct light a day, and they flower and fruit hardest when they get it. They will take a little partial shade, but push them into the shadows and the blooms thin out fast, and fewer blooms mean fewer fruit.

Water

An established pomegranate laughs off dry spells as a drought tolerant plant, yet even watering still pays big. Drive a deep soak in every 7 to 10 days when rain goes missing, and hold the moisture steady through late summer and fall, because sudden swings crack the ripening fruit.

Soil

Set it into well-drained loamy soil for the strongest growth, though it rolls with most soil types as long as they never stay wet. Keep the pH between 5.5 and 7.0 and steer well clear of heavy ground that traps water at the roots.

Temperature

This shrub takes on a huge range, from 10°F to 104°F (-12°C to 40°C). Hard cold can knock it flat to the ground, but a long, blazing summer is exactly what pushes the fruit to ripen.

Humidity

Pomegranates want it dry, around 20% to 50% humidity, and they run best there. Muggy, soggy air is the real enemy, since it fires up the anthracnose that rots fruit in humid regions.

Feeding

Fuel it with a balanced 10-10-10 across spring and summer, spreading about 1 pound per 3 feet of plant height and splitting the feed between March and July. Those two seasonal boosts keep a settled plant cropping strong.

Pruning

Grab the pruners in late winter, before growth breaks. Clear the suckers, dead wood, and crossing branches, and keep the cuts light, since fruit rides on 2 to 3 year old wood and heavy pruning throws away your harvest.

Repotting

Only container-grown dwarf forms call for this, about every 2 to 3 years. Move it up when roots start circling the pot, water blasts straight through, or growth stalls out. Mature in-ground plants never need it.

Size & spacing

A full-size pomegranate rockets to 12 to 20 feet (3.7 to 6 m) tall and fans out 8 to 20 feet (2.4 to 6 m), so hand it real room to run. Dwarf cultivars stay compact and jump happily into a pot or a tight corner.

When to plant

Pomegranates thrive on a long, warm run, so line the season up and let them go. Get the plant outside in spring once the last frost clears, cheer the flowers on from late spring through fall, and pull the fruit from August into October, about 6 to 7 months after bloom.

Northern hemisphere

Plant Apr–May
Bloom May–Sep
Harvest Aug–Oct

Typical months for a temperate climate: start earlier in warm zones, later where spring frosts linger.

  • Plant: spring after the last frost
  • Harvest: blooms late spring through fall; fruit harvested August to October, about 6 to 7 months after bloom

Hardiness

USDA hardiness zones: 7–10

Temperature: down to -18°C

Troubleshooting

Nearly every pomegranate hiccup lands on the fruit or around the base, and most give way to a quick change in watering or pruning. Spot the early signs, jump on them, and keep the plant charging ahead. Match your symptom below and act fast.

Severe

Rot and sunken lesions on fruit in soggy heat

Those dark, caving lesions are anthracnose, a fungus that revels in warm, wet air and rots fruit before it ripens, and the top reason pomegranates fight an uphill battle in humid regions. Open the canopy so air rips through, keep water off the fruit, yank and destroy anything infected, and reach for resistant cultivars where summers stay sticky.

Fix:

  • Improve air circulation and avoid overhead wetting
  • Remove and destroy infected fruit
  • Choose disease-resistant cultivars in humid regions
Setback

Fruit bursting open as it ripens

A split pomegranate reads as a moisture-swing problem, not a disease: break a dry spell with heavy rain or a long soak and the fruit swells faster than its rind can stretch, so the skin gives. Hold the soil evenly moist from late summer through fall, pile on 2 to 3 inches of mulch, and dial the water back slowly as the fruit ripens instead of slamming it off all at once.

Fix:

  • Maintain consistent, even soil moisture through late summer and fall
  • Apply a 2 to 3 in organic mulch layer to buffer moisture
  • Reduce irrigation gradually as fruit matures rather than abruptly
Setback

Thin flowering and young fruit dropping

A shy crop usually traces to shade or youth. Parked in partial shade the plant flowers weakly, and one under three years old has not built up to a real haul yet. Shift it into full sun with 6+ hours of light, skip the heavy pruning that rips out fruiting wood, and give it to about year three before calling it, and it will hit its stride.

Fix:

  • Site in full sun (6+ hours direct light)
  • Be patient; better fruiting typically begins around year three
  • Avoid heavy pruning that removes fruiting wood
Cosmetic

Suckers surging up around the base

Pomegranates fire up suckers from the roots and crown on their own, and ignore them and a sharp shrub piles into a thicket. Clip them off at the base the moment they show. Lock in your look early, either a few clean trunks or a full multi-stem shrub, then prune to drive that shape.

Fix:

  • Remove suckers regularly at the base
  • Train to a few main trunks or allow as a multi-stem shrub

Toxicity

Dig into a pomegranate and the part you eat is the safe part. The arils and juice are a genuine treat for people, while the bitter rind, bark, and roots pack tannins that can upset a cat or dog that raids the peel or gorges on fruit. Stash the peels and spare fruit well away from pets and grazing animals, and everyone enjoys the harvest.

Toxic to

Cats · Dogs · Horses · Rabbits · Livestock · Birds

Safe for

People

Cats Mild

A few arils do a cat no harm, but the rind and tannin-heavy pith can leave it queasy. Keep watch for vomiting or loose stools if it gnaws the peel or piles into a lot of fruit.

Dogs Mild

Dogs handle the sweet arils with ease, yet the tannins in the rind can trigger vomiting or diarrhea once they eat a lot. The seeds and tough peel can also choke a small dog or jam up the gut, so keep those out of reach.

Horses Caution

No record pins a pomegranate to poisoning a horse, but keep the bitter, tannin-rich rind and bark well away, since a big helping could turn the stomach.

Rabbits Caution

The fruit is not poisonous, though the tannins and sugar hit a rabbit's gut hard. Cut the rind out entirely and let the arils stay a rare nibble at most.

Livestock Caution

Goats, sheep, and cattle are not truly poisoned by pomegranate, but heavy browsing on the astringent rind and bark can spark loose stools or a flat appetite.

Birds Caution

Loads of birds tear into the ripe arils with zero trouble. The rind hauls the tannins to skip, so put out clean fruit only and hold back the peel.

People Fruit safe

For people the juicy arils and their juice are a healthy treat, eaten fresh or pressed. The rind and bark stay bitter and astringent and are simply not for eating.

Keep peels and large amounts of fruit away from cats and dogs; a few arils are not toxic but the rind and tannins are the irritating parts.

Helpline numbers

United States

ASPCA Animal Poison Control: (888) 426-4435 (fee applies)

Poison Control: (800) 222-1222

United Kingdom

Animal PoisonLine: 01202 509000 (fee applies)

NHS: 111

Australia

Animal Poisons Helpline: 1300 869 738

Poisons Information Centre: 13 11 26

Canada

Poison Centres: 1-844-764-7669

Varieties

Pomegranates run from a towering 20-foot shrub to a pint-size 2-foot dwarf, so there is one begging to join almost any garden. These are the standouts you will most want to track down and grow.

Wonderful

The heavyweight of the commercial trade, chased for big, deep red fruit crammed with juicy arils, and the benchmark every other pomegranate races to match.

Nana

A pint-size dwarf that caps out at just 2 to 3 feet, which makes it the go-to for a container or a snug corner of the garden.

Salavatski (Russian series)

A cold-hardy standout said to power down to about Zone 6, throwing the gates open to gardens colder than most pomegranates dare.

State Fair

A trim cultivar near 5 feet that cranks out reliable crops of smaller fruit, a sharp pick when space runs tight.

How to propagate

Multiplying pomegranates is a blast, and the method you grab sets the outcome: a spot-on copy of the parent or a genetic surprise waiting to unfold.

Stem cuttingsEasy

Winter (dormant season, January to February) · Roots in one growing season; 1 to 2 years in nursery rows before transplanting

Cuttings are the fast track to a plant that matches the parent dead-on. In dormancy, cut pencil-thick hardwood pieces about 8 to 10 inches long, dip the bases in rooting hormone, and drive them halfway into a moist soilless mix. They root across one growing season, then hold in nursery rows for a year or two before they leap into the ground.

SeedModerate

Spring · Germinates in a few weeks; several years to first fruit

Seed works, but it seldom hands back the plant you chased. Sow in spring and the seeds pop within a few weeks, yet the seedlings scatter every which way, rarely match the parent cultivar, and stall you several years before the first fruit.

LayeringModerate

Spring to summer · One growing season to root before separating

Layering pays off if patience is on your side. Bend a low, springy branch down, pin it to the soil from spring through summer, and it roots right in place over one growing season. Once it grabs, cut it free from the parent and move the new plant.

Myths

Myth

Pomegranates are poisonous to dogs and cats.

Reality

Bust this one and grow with confidence. Pomegranate never lands on the ASPCA's toxic list, and Pet Poison Helpline pegs it as a mild irritant, not a real poison. The upset traces to the tannin-rich rind and to a pet piling in too much, which can spark vomiting or loose stools. A few arils do no harm; the peel is the piece to keep from pets.

Myth

You need two pomegranates before you get fruit.

Reality

One plant runs the whole show. Pomegranates self-pollinate, so a lone shrub fruits on its own with no partner in sight. Add a second and it may nudge the yield up a touch, but it is never a must.

Sources