0How 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.
Protect the emerging shoots from slugs in spring – blue-leaved kinds are tougher.
Hosta sieboldii – what to know
Hosta sieboldii belongs to the Asparagaceae family (genus Hosta) and is listed in our catalog under “Garden flower”. Its needs – light: shade; water: high; humidity: medium. Frost-hardy to about -30 °C – it can overwinter outdoors in many climates. Rest period: cold winter dormancy. Typical flowering time: July, August. Easy enough for beginners. For cats: mildly toxic; for dogs: mildly toxic. Keep it out of reach and call a vet straight away if you suspect poisoning. Nobody on Perfect Plants Club has added it to their collection yet – be the first!
Frequently asked questions
How often should I water Hosta sieboldii?
Generously: keep the soil evenly moist and never let it dry out completely.
How much light does Hosta sieboldii need?
It copes well with partial shade and darker spots; keep it out of harsh direct sun.
How cold can Hosta sieboldii get?
Frost-hardy to about -30 °C – it can overwinter outdoors in many climates.
Is Hosta sieboldii 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 Hosta sieboldii flower?
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
Not enough watering logs yet. Waterings logged in the care hub feed this chart.
Tips and questions about this species
Hosta
Care data is for guidance only.
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