0Hosta undulata
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Tips & experience from members
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How members water it
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How it thrives
Waterhigh
Lightshade
Humiditymedium
Min. temperature-30 °CJanuary
Only very rarely, a little water so the roots don’t dry out completely.
No feeding now.
It can stay outside. Wrap the pot (hessian, polystyrene) and keep it against the house wall, out of the rain.
February
Only very rarely, a little water so the roots don’t dry out completely.
No feeding now.
It can stay outside. Wrap the pot (hessian, polystyrene) and keep it against the house wall, out of the rain.
March
Gentle start: the first small drink once you see buds or new growth and it warms up.
First weak dose at the end of the month if it is actively growing.
Bright indirect light, north or east window.
Move it somewhere brighter and warmer and end wintering. Get it used to strong sun gradually.
April
Keep evenly moist but never waterlogged.
Liquid feed every 2–3 weeks.
Bright indirect light, north or east window.
May
Keep evenly moist but never waterlogged.
Liquid feed every 2–3 weeks.
Bright indirect light, north or east window.
June
Keep evenly moist but never waterlogged – more often in heatwaves, preferably in the evening.
Liquid feed every 2–3 weeks.
Bright spot without direct sun, north or east window.
It flowers next month – once you see buds, don’t move it any more.
July
Keep evenly moist but never waterlogged – more often in heatwaves, preferably in the evening.
Liquid feed every 2–3 weeks.
Bright spot without direct sun, north or east window.
It usually flowers now – don’t turn or move it, and log the bloom in your diary!
August
Keep evenly moist but never waterlogged – more often in heatwaves, preferably in the evening.
Liquid feed every 2–3 weeks.
Bright spot without direct sun, north or east window.
It usually flowers now – don’t turn or move it, and log the bloom in your diary!
September
Keep evenly moist but never waterlogged.
No feeding now.
Bright indirect light, north or east window.
October
Taper off gradually: very little by the end of the month.
No feeding now.
Bright indirect light, north or east window.
Move it to its cool, bright winter spot and taper off watering. Log it with one click in the Care hub.
November · now
Only very rarely, a little water so the roots don’t dry out completely.
No feeding now.
It can stay outside. Wrap the pot (hessian, polystyrene) and keep it against the house wall, out of the rain.
December
Only very rarely, a little water so the roots don’t dry out completely.
No feeding now.
It can stay outside. Wrap the pot (hessian, polystyrene) and keep it against the house wall, out of the rain.
Hosta tip: Protect the emerging shoots from slugs in spring – blue-leaved kinds are tougher.
Wavy-leaved plantain lily – what to know
Wavy-leaved plantain lily (Hosta undulata) – family: Asparagaceae, genus: Hosta. Care guidelines: light: shade; water: high; min. -30 °C. For cats: mildly toxic; for dogs: mildly toxic. Keep it out of reach and call a vet straight away if you suspect poisoning.
Frequently asked questions
How often should I water Wavy-leaved plantain lily?
Generously: keep the soil evenly moist and never let it dry out completely.
How much light does Wavy-leaved plantain lily need?
It copes well with partial shade and darker spots; keep it out of harsh direct sun.
How cold can Wavy-leaved plantain lily get?
Frost-hardy to about -30 °C – it can overwinter outdoors in many climates.
Is Wavy-leaved plantain lily toxic to cats and dogs?
For cats: mildly toxic; for dogs: mildly toxic. Keep it out of reach and call a vet straight away if you suspect poisoning.
When does Wavy-leaved plantain lily flower?
According to the general guideline for the genus Hosta: Typical flowering time: July, August.
What members’ data shows
When does it really bloom?
No blooms logged yet. If yours flowers, your data will be the first!
Average watering interval
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Questions about this species
Hosta
Care data is for guidance only.
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