Independent comparisons. We may earn from shop links. More info

Hardy hibiscus vs tropical hibiscus

Updated: 22 October 2026

You have one word, hibiscus, and two ways to lose the plant in January: leaving a houseplant on the patio, or digging up a shrub that was only leafless. Hardy hibiscus vs tropical is that winter choice, plus a third plant that disappears on purpose. The [hibiscus plant comparison](/hub/ornamental-plants/hibiscus-plant) is the amazon.co.uk listings, several of which say hardy without a species. Peter F. used the RHS species pages, read on 20 October 2026. H5 on a species page is not a promise for a £4 rhizome in its first winter. A qualifying amazon.co.uk purchase can earn a commission at no extra cost to you.

You have one word, hibiscus, and two ways to lose the plant in January: leaving a houseplant on the patio, or digging up a shrub that was only leafless.

Our top picks

Generic Generic yellow Hibiscus syriacus

Best overall

Generic Generic yellow Hibiscus syriacus
5.3/10about £14.50
View offer
PQEWFV PQEWFV 1 hibiscus rhizome, colour code A

Rank 2

PQEWFV PQEWFV 1 hibiscus rhizome, colour code A
2.3/10about £4.15
View offer
ZFGJGHK ZFGJGHK 1 hibiscus bulb, colour code A

Rank 3

ZFGJGHK ZFGJGHK 1 hibiscus bulb, colour code A
3.9/10about £9.90
View offer
On this page
  1. 1.The shrub that stays outside
  2. 2.The pot that must come in
  3. 3.The perennial that vanishes to the ground
  4. 4.Which one, given your winter

The shrub that stays outside

Hibiscus syriacus, rose of Sharon, is the deciduous shrub. The RHS rates it H5, about -15°C to -10°C, in full sun and shelter on soil that drains. It flowers from midsummer, drops its leaves, and can still look dead in May. Give it until July before you dig it up, as set out in how to grow hibiscus. That wait is for a living shrub. H5 is not printed on most amazon titles here. Semi-resistant winter on a listing is not H5, and a first winter is riskier than a shrub that has stood for years.

The pot that must come in

Hibiscus rosa-sinensis is the tender one. The RHS rates Hibiscus × rosa-sinensis H1B: outside in summer, about 10–15°C as its comfort, not a British frost. Minimum nights are about 7–10°C, and you bring it in before the temperature falls below 12°C. Flowers last a day or two. Poor winter light may drop buds while the plant is still alive if the compost stays barely moist. A listing line of 21–29°C next to the word hardy has not named the species. Compost and the move indoors are on hibiscus in pots.
Generic Generic yellow Hibiscus syriacus

Testsieger

Generic Generic yellow Hibiscus syriacus
5.3/10about £14.50
View offer

The perennial that vanishes to the ground

Hibiscus moscheutos is herbaceous. The top dies back to a woody crown, flowers can reach about 20 cm, and the RHS rates it H4, about -10°C to -5°C. It wants a hot summer and a winter mulch. It is not a tulip bulb. Cutting rose of Sharon to the ground because this plant disappears removes the woody framework. Several amazon titles say hardy or herbaceous and never name moscheutos. That is not an H4 certificate. The label check is how to buy a hibiscus.

Which one, given your winter

Choose syriacus for a sunny border that drains. Choose rosa-sinensis if nights stay above about 7°C and the pot comes in before 12°C. Choose moscheutos for a huge flower only when you can mulch the crown. A flat with no garden is the tender plant. A plot that puddles in January suits none of them. The £4.15 row that says hardy perennial and also 21–29°C has not chosen. Leave the shrub out, bring Chinese hibiscus in, and mulch the crown that is supposed to disappear.

Common questions

Will rose of Sharon survive a UK winter in the ground?
In most of the UK, yes, if it is Hibiscus syriacus in sun and shelter on soil that drains. The RHS rating is H5, about -15°C to -10°C. A wet, exposed first winter can still kill a young plant. The rating is not a promise for an unnamed rhizome, and leaf fall in autumn is normal for this deciduous shrub.
Can Chinese hibiscus stay on the patio all year?
Not through a typical UK winter. It can go outside in summer. Bring it in before the temperature falls below 12°C, and keep nights around 7–10°C or a little higher. H1B is the RHS code for the tender species. A hardy word on a mixed listing does not change that.
What is H5 in plain language?
H5 means the plant is hardy through most British winters, including a severe one, in the right site. For Hibiscus syriacus the RHS band is about -15°C to -10°C. It assumes drainage and a suitable spot. It does not mean every garden, every pot left on a windy balcony, or every parcel sold as hardy.
How is swamp hibiscus different from the shrub?
Swamp hibiscus, H. moscheutos, dies back to a crown and is rated H4. Flowers can be about 20 cm across, and it wants a hot summer and a mulch. Rose of Sharon keeps a woody framework, is rated H5, and should not be cut to the ground. One is a perennial that vanishes. The other is a shrub that leafs late.
Why did my outdoor hibiscus lose its leaves in autumn?
If it is rose of Sharon, that is the deciduous habit. The shrub flowers late and then drops leaves. Bare stems in May can still be alive until July. If a tender plant dropped leaves after a cold night outdoors, that is chill, not the normal autumn of the shrub. Check which species you have before you prune.
My listing says hardy and also says 21–29°C. Which do I believe?
Neither, until the species is named. Those two claims describe different winters. Hardy outdoor hibiscus is syriacus or, with limits, moscheutos. A warm indoor range belongs to tender Chinese hibiscus. A title that prints both has not told you which plant is in the bag.
Which one do I buy for a flat with no garden?
Chinese hibiscus, and only if a bright room stays warm enough at night. You will bring it in before 12°C and keep the compost barely moist in winter. An outdoor shrub or a herbaceous crown needs a border, or at least a pot you can shelter, which a north-facing flat often cannot offer. Do not buy an unnamed hardy bulb for a windowsill and hope the word hibiscus does the rest.

Related pages

Best hibiscus plant in this set

Hibiscus plant

How to buy a hibiscus plant when the title says bulb

How to grow hibiscus in the UK through the first year

How to grow hibiscus in pots in the United Kingdom

Sources

Public sources from the research digest, last checked on 21 October 2026. Shelf prices and star lines are the amazon.co.uk figures in the display file. The price band is this set, not a market average. Scores apply to these eight listings only.

  1. RHS: Hibiscus syriacus (retrieved 21 October 2026)
  2. RHS: Chinese hibiscus growing guide (retrieved 21 October 2026)
  3. RHS: Hibiscus moscheutos (retrieved 21 October 2026)
  4. BBC Gardeners' World: rose of Sharon (retrieved 21 October 2026)
  5. House & Garden: how to care for hibiscus (retrieved 21 October 2026)
  6. GOV.UK: plant passports to trade plants in Great Britain (retrieved 21 October 2026)
  7. Consumer Rights Act 2015, section 9 (retrieved 21 October 2026)
  8. Animal PoisonLine: pet-safe plants (retrieved 21 October 2026)
  9. ASPCA: Hibiscus syriacus (retrieved 21 October 2026)