Plant care
Goji Berry (wolfberry) care
Lycium barbarum
Also called goji berry, wolfberry, Chinese wolfberry.
Watering rhythm
Direct sun (at least 4-6 hours)
When the top 5 cm of soil is dry; weekly while establishing, then drought-tolerant
Light
Direct sun (at least 4-6 hours)
Soil
Free-draining, neutral to alkaline soil
Humidity
Outdoor ambient
Temp
-15 to 30°C
Pet safety
Mildly toxic to pets
Mature size
1.5-2.5 m tall with arching canes spreading 2-4 m unless trained or pruned
Care at a glance
Light
Most houseplants will scorch where goji berry thrives. Give it the windowsill you'd otherwise leave empty because everything else burned there. Full sun is essential for good flowering and fruit; aim for 6-8 hours. In shade the plant grows leggy and crops poorly. Its open, lax habit means it does best trained against a sunny fence or wires. A plant moved abruptly from low light to direct sun bleaches in 48 hours — always acclimatise over a week.
Watering
For goji berry in the ground or in a bed, aim for when the top 5 cm of soil is dry; weekly while establishing, then drought-tolerant. Soak the root zone rather than misting the foliage; deep, less-frequent watering trains roots downward and produces a more drought-resilient plant by mid-season. Water regularly in the first year to build roots and during flowering and fruiting for a better crop. Once established it is markedly drought-tolerant and dislikes waterlogged soil, so let it dry between deeper soakings rather than keeping it constantly wet.
Soil and pot
Goji Berry grows best in free-draining, neutral to alkaline soil. Thrives on pH 6.5-8.0 and tolerates poor, sandy, stony and saline ground that defeats fussier fruit. Good drainage matters more than fertility; heavy, wet clay encourages root rot and should be lightened or raised. A pot with a working drainage hole is non-negotiable for this species — even free-draining mix will turn soggy in a closed planter. If you love the look of a decorative pot without a hole, use it as a cachepot around an inner nursery pot you can lift out to water.
Humidity and temperature
Goji Berry sits happiest at around Outdoor ambient humidity and -15 to 30°C (5 to 86°F). An adaptable outdoor shrub unbothered by humidity and notably tolerant of coastal salt spray and wind. No special humidity needs; good airflow simply helps keep foliar fungal problems down in damp summers. If you keep the room above year-round and avoid placing the plant near a cold draught, a hot radiator, or an air-conditioning vent, you have already handled the two biggest indoor stressors.
Fertilising
Feed goji berry sparingly. Low feeder; an annual spring mulch or a light balanced feed is plenty. Excess nitrogen produces rampant leafy growth and few berries, so feed sparingly. On very poor soils a single spring application of general fertiliser supports cropping without overstimulating the canes. Skip fertiliser entirely on a stressed, recently-repotted, or actively wilting plant — fertiliser salts make damage worse, not better. Wait for a round of healthy new growth before resuming a feeding rhythm.
Common problems
Below are the issues we see most often on goji berry in the Growli community. Each is annotated with the most common cause so you know where to start.
- Slow to fruit — Young plants often grow vigorously for two to three years before cropping well; patience and full sun are needed, and pruning to an open framework speeds productive wood.
- Suckering spread — Canes layer and sucker into surrounding ground; site away from borders or grow in a large container to contain its wandering habit.
- Powdery mildew and rust — Dense, crowded growth in humid conditions develops mildew or rust on leaves; thin canes and improve airflow to reduce infection.
- Bird and pest feeding — Ripe berries attract birds, and aphids gather on soft tips; net fruiting plants and tolerate or wash off light aphid colonies.
Propagation
Readily grown from hardwood or softwood cuttings, which root quickly, and from rooted suckers or layers. Seed-raised plants germinate easily but are variable and slow to fruit, so cuttings from a known cropping plant are the dependable method. Propagation is the cheapest, most satisfying way to expand a collection — and it doubles as insurance against losing a mature plant to an accident. Take a backup cutting once the parent is established and healthy.
Toxicity to pets
Goji Berry is mildly toxic to pets. Goji (Lycium barbarum) is not individually listed on the ASPCA Toxic/Non-Toxic Plants database, so its pet status is not formally classified; treat with caution and verify with a vet. It belongs to the nightshade family (Solanaceae), several members of which are toxic to pets, so do not assume pet-safe. Discourage pets from grazing the foliage and unripe fruit. If you keep cats, dogs, or curious children in the house, weigh placement carefully — a high shelf or a hanging planter is enough for casual safety. For severe ingestion incidents, call your local vet and the ASPCA Animal Poison Control Center (in the US, 888-426-4435).
Pet-safety status is sourced from the ASPCA Toxic and Non-Toxic Plant List, which catalogues the most-asked-about plants for cats, dogs, and horses.
Goji Berry care — frequently asked questions
What is the common name for Lycium barbarum?
Lycium barbarum is most commonly called Goji Berry, but it is also known as goji berry, wolfberry, Chinese wolfberry. The names refer to the same species, so care instructions for Goji Berry apply identically to anything sold as wolfberry.
How much light does goji berry need?
Goji Berry grows best in direct sun (at least 4-6 hours). Full sun is essential for good flowering and fruit; aim for 6-8 hours. In shade the plant grows leggy and crops poorly. Its open, lax habit means it does best trained against a sunny fence or wires.
How often should I water goji berry?
Water goji berry when the top 5 cm of soil is dry; weekly while establishing, then drought-tolerant. Water regularly in the first year to build roots and during flowering and fruiting for a better crop. Once established it is markedly drought-tolerant and dislikes waterlogged soil, so let it dry between deeper soakings rather than keeping it constantly wet. The finger-test (or lifting the pot to feel its weight) beats a fixed weekly calendar because pot size, light, and season all change how fast the soil dries.
Is goji berry toxic to cats and dogs?
Goji Berry is mildly toxic to pets. Goji (Lycium barbarum) is not individually listed on the ASPCA Toxic/Non-Toxic Plants database, so its pet status is not formally classified; treat with caution and verify with a vet. It belongs to the nightshade family (Solanaceae), several members of which are toxic to pets, so do not assume pet-safe. Discourage pets from grazing the foliage and unripe fruit.
What USDA hardiness zone does goji berry grow in?
Goji Berry is rated for USDA zone 5-9 and RHS hardiness H5. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.
Goji Berry deep-dive guides
Every aspect of goji berry care, each with its own calibrated guide:
- Goji Berry watering schedule
- Goji Berry light requirements
- Best soil mix for goji berry
- Goji Berry fertilizing guide
- When to repot goji berry
- How to propagate goji berry
- Goji Berry growth rate & size
- Goji Berry cold hardiness
- Goji Berry temperature & humidity
- Is goji berry toxic to cats & dogs?
- Is goji berry toxic to cats?
- Is goji berry toxic to dogs?
Related guides
Goji Berry is also known as goji berry, wolfberry, and Chinese wolfberry.