Tree · Juglandaceae family · with preparation per the EMAornamental and medicinal · also in Medicinal herbs
English walnut
Juglans regia
In short a 10-second read
English walnut (tree) grows to 12–30 m tall and 10–20 m wide when mature. It grows best in full sun, in average to moist soil. Hardy to −23 °C.
× spread 10–20 m
Where to plant
Sun, soil, frost.
It grows best in full sun, in average to moist soil. Hardy to −23 °C.
Sun
Elsewhere it will grow less well.
Soil and water
average to moist · watering: little
Soil: clay, humus-rich, loamy
Soil pH 6–8
Frost
It copes with a normal winter outdoors.
How much space it takes
Mature size.
The mature plant next to a person (175 cm).
Next to a person
Reaches maturity in about 20–50 years. The final size depends on the cultivar and the spot — we give the range from smallest to largest.
Calendar
What to do and when.
Months for Central Europe. The line shows the current month.
The year at a glance
Pruning
No pruning needed — just remove dead or damaged parts (July–December).
Planting
container plant: October–April; bare-root: October–March; root-balled: October–March
Winter protection
not needed
Overwintering
It copes with winter on its own.
It overwinters outdoors without protection, hardy to −23 °C.
- Needs no protection
- Hardy to −23 °C
- Deciduous — bare in winter
Frequently asked
Quick answers.
Does English walnut tolerate shade?
No, it needs full sun.
How much space does English walnut need?
At maturity 10–20 m wide and 12–30 m tall; recommended spacing 1200 cm.
Does English walnut survive winter outdoors?
Yes, without protection, hardy to −23 °C.
Where the data comes from
The data is indicative — we are still comparing it with further sources. Last checked 18 October 2026.
Show sources (22)
- NC State Extension Gardener Plant Toolbox — Juglans regia
- Oregon State University Landscape Plants — Juglans regia
- Van den Berk Nurseries (NL), stromová škôlka — Juglans regia
- EUR-Lex — vykonávacie nariadenie
- Slov-lex — nariadenie vlády SR č. 449/2019 Z. z.
- GBIF Occurrence Search API — Juglans regia
- EPPO Global Database — Juglans regia
- Pergl J. et al. (2016) Black, Grey and Watch Lists of alien species in the Czech Republic, NeoBiota 28: 1–37 (doi 10.3897/neobiota.28.4824) — Appendix
- Nehring S. et al. (2013) Naturschutzfachliche Invasivitätsbewertungen für in Deutschland wild lebende gebietsfremde Gefäßpflanzen, BfN-Skripten 352 (Bundesamt für Naturschutz) — Schwarze/Graue Liste
- Dziennik Ustaw RP 2022 poz. 2649 — Rozporządzenie Rady Ministrów z 9. 12. 2022 o liste inwazyjnych gatunków obcych stwarzających zagrożenie dla Unii i dla Polski
- Miljøstyrelsen (DK) — Invasive plantearter
- Polleninformation.at Plantcompass — Walnut
- Zahradníková E., Rendeková A., Ščevková J. (2023) Temporal variation of allergenic potential in urban parks: a case study from Bratislava, Slovakia. Environ Sci Pollut Res 31: 2026–2041 (doi 10.1007/s11356-023-31137-9) — tabuľka peľového a alergénneho potenciálu drevín
- EMA/HMPC - Juglandis folium (herbal medicine)
- EMA/HMPC - monografia Juglandis folium (EMA/HMPC/346737/2011)
- RHS - Juglans regia
- RHS - Shrubs and trees: light pruning
- RHS - Bleeding from pruning cuts
- RHS - Trees and shrubs: planting
- Clemson HGIC - Planting Trees Correctly
- RHS - How to grow trees
- Pergl et al. 2016, NeoBiota 28 (Botanický ústav AV ČR) — Grey List
Similar plants
Have a look at these too.
Preparation and use · English walnut
How to prepare it.
According to the monograph of the European Medicines Agency (EMA).
part: leaf
Compress at home
For: minor skin inflammation EMA 4.1For whom: From 18 years · adults, elderly EMA 4.2
- What you use
- Herb EMA 4.2
- How it is used
- On the skin EMA 4.2
- Single dose
- 4–6 g of dried leaves in 200 ml of boiling water EMA 4.2
- How often
- 2–4× a day EMA 4.2
- Preparation
- As a decoction EMA 4.2
- How long
- Use for no more than 1 week. EMA 4.2
Method
- 1
Put 4–6 g of dried leaves in a pan.
EMA 4.2 - 2
Pour over 200 ml of boiling water.
EMA 4.2 - 3
Bring to the boil and simmer for 15–30 min.
EMA/HMPC/5829/201020:00 - 4
Soak a cloth and apply it 2–4× a day.
EMA 4.2
For: excessive sweating of hands and feet EMA 4.1For whom: From 18 years · adults, elderly EMA 4.2
- What you use
- Herb EMA 4.2
- How it is used
- On the skin EMA 4.2
- Single dose
- 4–6 g of dried leaves in 200 ml of boiling water EMA 4.2
- How often
- 2× a day EMA 4.2
- Preparation
- As a decoction EMA 4.2
- Compress
- Leave on for at most 30 min EMA 4.2
- How long
- Use for no more than 1 week. EMA 4.2
Method
- 1
Put 4–6 g of dried leaves in a pan. EMA 4.2
- 2
Pour over 200 ml of boiling water. EMA 4.2
- 3
Bring to the boil and simmer for 15–30 min. EMA/HMPC/5829/2010
- 4
Soak a cloth and apply it 2× a day. EMA 4.2
- 5
Leave the compress on for at most 30 min. EMA 4.2
Dosage
| Form | Single dose | How often | For whom | How long | Instructions |
|---|---|---|---|---|---|
| Compressat homepart: leaffor: minor skin inflammation | 4–6 g of dried leaves in 200 ml of boiling water EMA 4.2 | 2–4× a day | From 18 years · adults, elderly | at most 1 week EMA 4.2 | Preparation: as a decoction EMA 4.2 |
| Compressat homepart: leaffor: excessive sweating of hands and feet | 4–6 g of dried leaves in 200 ml of boiling water EMA 4.2 | 2× a day | From 18 years · adults, elderly | at most 1 week EMA 4.2 | Preparation: as a decoction · Compress: leave on for at most 30 min EMA 4.2 |
| Adults only EMA 4.2 | |||||
How long
Use for no more than 1 week. EMA 4.2
Who should not use it
- Adults only EMA 4.2
- If hypersensitive (allergic) to this plant EMA 4.3
- On open wounds and large skin injuries EMA 4.3
- During pregnancy and breastfeeding (not recommended) EMA 4.6
Cautions
- Temporarily stains the skin. EMA 4.4
- If symptoms get worse, see a doctor. EMA 4.4