Ornamentalherbaceous perennialStraightforward

Hosta

Hosta

The best foliage plant for shade in a British garden and the most reliably eaten. Slug and snail damage is not a risk with hostas, it is the default outcome, and the practical decision is between growing them in pots where they can be defended and accepting the holes.

Position: Partial shade or Dappled shade or Full shade
Water: high demand
Drainage: Moisture-retentive
Grows to: 30–90 cm × 30–120 cm
Hardiness: H7
Flowers: June to August
Difficulty: Straightforward

August

In flower

Coming next month: plant.

Hosta’s year

Resolved for United Kingdom (general). Every window is stored against a climate event rather than a date, so a late frost pocket runs later than the band shows. What else August calls for.

Activity	J	F	M	A	M	J	J	A	S	O	N	D
Plant			March.	April.					September.	October.
In flower						June.	July.	August.
Divide			March.	April.

Timing that travels

The band above resolves this plant's windows into months for one region. These are the windows themselves, stored against a climate event rather than a date — which is the form that survives being carried to a colder garden, a frost pocket, or next year.

Conditions it needs

Light: Partial shade, Dappled shade, Full shade
Frost: Very hardy
Hardiness rating: H7 (RHS)
Grows best at: 12–24 °C
Soil: Loam, Clay
Soil pH: 6–7.5
Drainage: Moisture-retentive
Water needs: high
Drought: poor tolerance
Waterlogging: moderate tolerance
Heat: poor tolerance
Wind and exposure: poor tolerance

Where these figures come from

LightSourced guidancemoderate confidence

Royal Horticultural Society: Hosta — position

Checked 2026-08-13

FrostSourced guidancehigh confidence

Royal Horticultural Society: Hosta — hardiness

Checked 2026-08-13

Hardiness ratingSourced guidancemoderate confidence

Royal Horticultural Society: RHS hardiness ratings

Checked 2026-08-13

Grows best atSourced guidancemoderate confidence

Royal Horticultural Society: Hosta — temperature

Checked 2026-08-13

SoilSourced guidancemoderate confidence

Royal Horticultural Society: Hosta — soil

Checked 2026-08-13

Soil pHSourced guidancemoderate confidence

Plant Finder — Missouri Botanical Garden: Hosta — culture

Checked 2026-08-13

DrainageSourced guidancemoderate confidence

Royal Horticultural Society: Hosta — soil

Checked 2026-08-13

Water needsHorticultural consensusmoderate confidence

No external citation — see the evidence type above.

Checked 2026-08-13

DroughtHorticultural consensusmoderate confidence

No external citation — see the evidence type above.

Checked 2026-08-13

WaterloggingHorticultural consensusmoderate confidence

No external citation — see the evidence type above.

Checked 2026-08-13

HeatHorticultural consensusmoderate confidence

Leaves scorch at the edges in sun, particularly the thin-leaved blue-grey cultivars.

No external citation — see the evidence type above.

Checked 2026-08-13

Wind and exposureHorticultural consensusmoderate confidence

Wind tears the large leaves.

No external citation — see the evidence type above.

Checked 2026-08-13

On your soil

Computed by comparing this plant's recorded requirements against each soil's recorded characteristics. A recorded horticultural fact overrides the comparison where GrowingHQ holds one.

Soil	Verdict	Why
Heavy clay	Prefers this soil	Heavy clay suits Hosta as it stands: The pH suits it: it wants 6 to 7.5, and this soil is in that range. Clay is among the soils it is recorded as suiting. The soil holds moisture, which saves a great deal of watering.
Sandy	Struggles here	Hostas in dry ground stay small and brown at the edges however much shade they have. Dry shade — under a mature tree, or a sandy bed against a north wall — is a materially harder position than the damp shade hostas are always recommended for, and the two get conflated constantly.
Chalky and alkaline	Works, with one condition	Hosta will crop on chalky and alkaline, but one thing has to be dealt with first. It has little drought tolerance and this soil dries out fast — it will check and bolt in the first dry spell without watering.Water and mulch will carry it through. On this soil the watering is not optional in a dry spell, which is the difference between a crop and a failure.
Loam	Prefers this soil	Loam suits Hosta as it stands: The pH suits it: it wants 6 to 7.5, and this soil is in that range. Loam is among the soils it is recorded as suiting. The soil holds moisture, which saves a great deal of watering.
Silty	Grows well here	Hosta grows perfectly well on silty without special measures, though it is not the soil it would choose.
Peaty and acid	Grows well here	Hosta grows perfectly well on peaty and acid without special measures, though it is not the soil it would choose.
Shallow over rock	Works, with one condition	Hosta will crop on shallow over rock, but one thing has to be dealt with first. It has little drought tolerance and this soil dries out fast — it will check and bolt in the first dry spell without watering.Water and mulch will carry it through. On this soil the watering is not optional in a dry spell, which is the difference between a crop and a failure.
Made ground and urban soil	Grows well here	Hosta grows perfectly well on made ground and urban soil without special measures, though it is not the soil it would choose.

Not sure which you have? Four hand tests will settle it.

Space and spacing

Mature height: 30–90 cm
Mature spread: 30–120 cm
Rooting depth: 35 cm
Spacing: 45–90 cm apart

Where these figures come from

Mature heightHorticultural consensusmoderate confidence: No external citation — see the evidence type above.
Checked 2026-08-13
Mature spreadHorticultural consensusmoderate confidence: No external citation — see the evidence type above.
Checked 2026-08-13
Rooting depthHorticultural consensusmoderate confidence: No external citation — see the evidence type above.
Checked 2026-08-13
SpacingSourced guidancemoderate confidence: Royal Horticultural Society: Hosta — spacing
Checked 2026-08-13

Measured centre to centre. Plants set closer than this compete for light and water long before they look crowded, and the crowding cannot be undone once they are in.

In a container

Minimum volume: 15 litres or more
Minimum depth: 25 cm

Where the container figures come from

Minimum volumeHorticultural consensusmoderate confidence: No external citation — see the evidence type above.
Checked 2026-08-13
Minimum depthHorticultural consensusmoderate confidence: No external citation — see the evidence type above.
Checked 2026-08-13

Where and how you can grow it

Each way of growing is assessed separately, and “not assessed” is a real answer rather than a gap we have filled in with a guess.

Method	Suitability	What it needs
Open ground	Well suited source Sourced guidancemoderate confidence Royal Horticultural Society: Growing method suitability Checked 2026-08-13
Traditional dug bed	Well suited source Sourced guidancemoderate confidence Royal Horticultural Society: Growing method suitability Checked 2026-08-13
Raised bed	Well suited source Sourced guidancemoderate confidence Royal Horticultural Society: Growing method suitability Checked 2026-08-13
Container	Well suited source Sourced guidancemoderate confidence Royal Horticultural Society: Growing method suitability Checked 2026-08-13	15 litres; Raised or on pot feet — much easier to defend from slugs
Hydroponics	Not suitable source Sourced guidancemoderate confidence Royal Horticultural Society: Growing method suitability Checked 2026-08-13

Growing it

ProtectionAssume slug and snail damage and plan for it rather than reacting to it. A pot standing clear of the ground is the most effective defence available to a home gardener; thick-leaved and heavily blue cultivars are noticeably less attractive to molluscs than thin-leaved ones, which is a purchase decision rather than a treatment.
WateringKeep the soil moist through summer. Hostas in dry shade — under a mature tree, for instance — stay small and brown at the edges, and dry shade is a materially harder position than the damp shade they are usually recommended for.
PropagationDivide in early spring as the shoots emerge, when you can see where the crowns are and how to cut between them. Lift the whole clump and cut it apart with a sharp spade or an old knife, keeping at least one growing point and a good share of root on every piece. Hostas are tough and forgiving here; the commonest error is making the divisions too small to make a plant again quickly.
FeedingA mulch of garden compost or well-rotted manure around the crown each spring is the right feed for a hosta in the ground, and for most plants it is the only one needed — the leaf size everybody grows them for comes from moisture and soil richness together rather than from fertiliser alone. Plants in pots do want a balanced liquid feed every few weeks from the time the leaves unfurl until midsummer, then nothing, so the plant can die back cleanly. Avoid high-nitrogen feeds: soft lush leaves are noticeably more attractive to slugs, which is a real cost on this plant of all plants.

Where this guidance comes from

ProtectionSourced guidancehigh confidence: Royal Horticultural Society: Hosta — slugs and snails
Checked 2026-08-13
WateringSourced guidancehigh confidence: Royal Horticultural Society: Hosta — care
Checked 2026-08-13
PropagationSourced guidancehigh confidence: Royal Horticultural Society: Hostas — propagation
Checked 2026-08-13
FeedingSourced guidancemoderate confidence: Royal Horticultural Society: Hostas — cultivation
Checked 2026-08-13

The rule is the same in all four: the new piece needs both a growing point and roots of its own. A cutting is the exception that has to make its roots afterwards, which is why the node matters so much.

What goes wrong

Problem	How often	Notes
Vine weevil	common source Horticultural consensusmoderate confidence No external citation — see the evidence type above. Checked 2026-08-13	Container-grown plants especially. The grubs eat the roots with no sign above ground until the plant collapses.
Slugs and snails	common source Horticultural consensusmoderate confidence No external citation — see the evidence type above. Checked 2026-08-13	Effectively certain. The question is how much damage, not whether.

Sources for this page

GrowingHQ editorial synthesis · Plant Finder · Royal Horticultural Society

Each figure on this page carries its own citation, under the “where these figures come from” note in its section. Record last reviewed 2026-08-14.

If something is wrong with it

Holes eaten in leaves — 3 causes GrowingHQ holds for hosta

Something else? Work through it with the diagnostic tool.