Solanum crispum 'Glasnevin' (Glasnevin Chilean potato tree) care

Light

Solanum crispum 'Glasnevin' needs sun on the leaves, not just bright ambient room light. Full sun for the best flowering; tolerates light afternoon shade but produces fewer blooms. A south- or west-facing sheltered wall gives the warmth and ripening it needs. A south or west-facing windowsill in the northern hemisphere is the default; anywhere else, expect the plant to stretch and pale out within a season.

Watering

Water solanum crispum 'glasnevin' keep evenly moist in the first two seasons; water established plants during prolonged dry spells. The actual day count varies with pot size, light, and season — the finger test (or lifting the pot to feel its weight) is more reliable than a fixed calendar. Empty any drainage saucer afterwards so the pot isn't sitting in water. Once established it is reasonably drought-tolerant in open ground. Water deeply in summer droughts and avoid waterlogging, which it dislikes. Container plants need regular watering.

Soil and pot

Solanum crispum 'Glasnevin' grows best in fertile, moist but free-draining loam. Thrives in moderately fertile, well-drained soil of any pH including chalk. Improve heavy clay with grit and organic matter; mulch the root zone to keep it cool and moist. 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

Solanum crispum 'Glasnevin' sits happiest at around Ambient outdoor humidity and -5 to 25°C (23 to 77°F). An outdoor wall climber with no special humidity needs; benefits from the air movement of an open, sunny aspect to keep foliage dry and discourage fungal problems. 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 solanum crispum 'glasnevin' sparingly. Apply a balanced general fertiliser in spring and a high-potash feed (such as tomato food) through the flowering period to sustain bloom. Avoid excess nitrogen, which favours leafy growth over flowers. 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 solanum crispum 'glasnevin' in the Growli community. Each is annotated with the most common cause so you know where to start.

• Frost damage — In cold winters or exposed sites stems can be killed back; grow against a warm, sheltered wall and mulch the base. Cut out damaged growth in late spring once regrowth shows.
• Sparse flowering — Usually too little sun or excess nitrogen. Site in full sun and switch to a high-potash feed; over-feeding with nitrogen drives foliage at the expense of blooms.
• Leggy, untidy growth — The lax stems sprawl if left unsupported. Tie in regularly and prune after flowering to keep it within bounds and encourage a denser framework.
• Aphids — Soft new shoots attract aphids, which distort growth and leave sticky honeydew. Dislodge with water or treat early; encourage ladybirds and other predators.

Propagation

Take semi-ripe cuttings in summer or softwood cuttings in late spring; root in gritty compost with bottom heat. Layering of low stems also works. 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

Solanum crispum 'Glasnevin' is toxic to pets. Toxic to cats and dogs. As a Solanum, it contains solanine and related glycoalkaloids; the ASPCA lists nightshade-family Solanum species as toxic. Ingestion can cause hypersalivation, severe gastrointestinal upset, drowsiness, CNS depression, dilated pupils and slowed heart rate. The unripe berries are the most hazardous part. 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.

Solanum crispum 'Glasnevin' deep-dive guides

Every aspect of solanum crispum 'glasnevin' care, each with its own calibrated guide:

• Solanum crispum 'Glasnevin' watering schedule
• Solanum crispum 'Glasnevin' light requirements
• Best soil mix for solanum crispum 'glasnevin'
• Solanum crispum 'Glasnevin' fertilizing guide
• When to repot solanum crispum 'glasnevin'
• How to propagate solanum crispum 'glasnevin'
• Solanum crispum 'Glasnevin' growth rate & size
• Solanum crispum 'Glasnevin' cold hardiness
• Solanum crispum 'Glasnevin' temperature & humidity
• Is solanum crispum 'glasnevin' toxic to cats & dogs?
• Is solanum crispum 'glasnevin' toxic to cats?
• Is solanum crispum 'glasnevin' toxic to dogs?
• Getting solanum crispum 'glasnevin' to bloom

Featured in these plant shortlists

Solanum crispum 'Glasnevin' qualifies for 7 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

• Best drought-tolerant houseplants — Houseplants that prefer to dry out — forgiving of forgotten watering and ideal for travel or busy weeks.
• Best trailing & climbing houseplants — Vining and trailing houseplants for shelves, hanging pots, and moss poles — selected by growth habit.
• Best flowering houseplants — Indoor plants grown for their blooms — selected from the flowering species in Growli’s plant-care library.
• Houseplants toxic to cats & dogs — The common houseplants the ASPCA lists as toxic to cats and dogs — the ones to keep out of reach, each with its symptoms and a safe alternative.
• Best houseplants for full sun — Houseplants that want direct sun — the species for a hot south or west-facing windowsill where shade-lovers scorch.
• Best houseplants for a cool room — Houseplants that tolerate cool conditions down to about 10°C — for an unheated spare room, hallway, porch or a home kept cool.
• Best fast-growing houseplants — Houseplants documented as fast or vigorous growers — quick to fill a pot, cover a pole or trail down a shelf.
• Browse all 29 plant shortlists — pet-safe, low-light, drought-tolerant and more

Related guides

Solanum crispum 'Glasnevin' is also commonly called Glasnevin Chilean potato tree or Chilean potato vine.

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