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Tree / bonsai

Quercus rubra

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Botanical fact sheet

Quercus rubra L.

⚙ Automatic base data
Taxonomy
Family: Fagaceae · Genus: Quercus1
Native distribution
North America, Alabama, Arkansas, Connecticut, Delaware, District of Columbia, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Nebraska, New Brunswick, New Hampshiruncertain3
Conservation status
LC Least concern (IUCN)56
Synonyms
29 synonyms
  • Erythrobalanus rubra (L.) O.Schwarz
  • Quercus acerifolia G.Kirchn.
  • Quercus ambigua F.Michx.
  • Quercus angulizana Raf.
  • Quercus borealis F.Michx.
  • Quercus borealis flabellata (Croizat) Rehder
  • Quercus borealis flabellata Croizat
  • Quercus borealis maxima (Marshall) Ashe
  • Quercus borealis maxima (Marshall) Sargent
  • Quercus coccinea ambigua A.Gray
  • Quercus cuneata Dippel
  • Quercus maxima (Marshall) Ashe
  • Quercus michauxii F.Dietr.
  • Quercus rubra cuneata Trel.
  • Quercus rubra houbae Trel.
  • Quercus rubra juvenilis Trel.
  • Quercus rubra obovata Trel.
  • Quercus rubra ambigua (A.Gray) Fernald
  • Quercus rubra borealis (F.Michx.) Farw.
  • Quercus rubra hispanica Castigl.
  • Quercus rubra latepinnatifida Kuntze
  • Quercus rubra latifolia Aiton
  • Quercus rubra maxima Marshall
  • Quercus rubra pendula DeVos
  • Quercus rubra pendula de Vos
  • Quercus rubra ramosissima Marshall
  • Quercus rubra rubra
  • Quercus rubra subserrata Lam.
  • Quercus sada Mast.
2

Still missing: plant type, natural habitat, height / growth form, flowering period, growth & dormancy period.

Sources (10)
  1. GBIF Backbone Taxonomy – Quercus rubra · Scientific name · CC BY 4.0
  2. GBIF – synonyms · Synonyms · CC BY 4.0
  3. GBIF – distributions (Integrated Taxonomic Information System (ITIS); The World Checklist of Vascular Plants (WCVP); Listado de Flora presente) · Native distribution · CC BY 4.0
  4. Wikidata – Q147525 · CC0
  5. Wikidata – IUCN Red List status (P141) · Conservation status · CC0
  6. IUCN Red List · Conservation status
  7. Wikimedia Commons – Twin Sisters Trail (14) (14092717698).jpg · CC BY 2.0
  8. Wikipedia (hu) – Vörös tölgy · CC BY-SA 4.0
  9. Wikipedia (de) – Roteiche · CC BY-SA 4.0
  10. Wikipedia (en) – Quercus rubra · CC BY-SA 4.0
Community knowledge

Tips & experience from members

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Real data

How members water it

Not enough logs yet: at least 3 plants with regular watering logs are needed (now: 0). Waterings logged in Care feed this – anonymised and aggregated.

Care guidelines

How it thrives

Partly general data for the genus Quercus
Watermedium
Lightfull sun
Humiditylowgeneral genus data
Min. temperature-35 °C
Cold winter dormancy · general genus dataDifficulty: ●●○○○ · general genus data⚠ May be toxic to pets / people · general genus data

No monthly schedule is shown because cultivar-/species-level data is not yet sufficient. The general values above are guidance only.

Quercus tip: Plant it young in its final spot due to its deep taproot; acorns are toxic to horses and dogs.

⚠ Pets & children · genus Quercus
Cattle severeHorse moderateSheep, goat moderateCat mildDog mildHuman (child) milddetails →

Acorns and young leaves cause kidney failure in quantity (cattle, horses). Pigs tolerate them.

At a glance

Quercus rubra – what to know

Quercus rubra – family: Fagaceae, genus: Quercus. Native range: North America, Alabama, Arkansas, Connecticut, Delaware, District of Columbia, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, …. Care guidelines: light: full sun; water: medium; min. -35 °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 Quercus rubra?

Moderately: water when the top 2–3 cm of soil is dry, and never let it sit in standing water.

How much light does Quercus rubra need?

It needs plenty of direct sun – the sunniest window, or outdoors in summer, suits it best.

How cold can Quercus rubra get?

Frost-hardy to about -35 °C – it can overwinter outdoors in many climates.

Is Quercus rubra 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.

Community intelligence

What members’ data shows

When does it really bloom?

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Average watering interval

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Who grows it?

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Questions about this species

Same genus

Quercus

Data sources: GBIF.org – Quercus rubra (CC BY 4.0) · Wikidata – Q147525 (CC0) · Wikimedia Commons – Twin Sisters Trail (14) (14092717698).jpg (CC BY 2.0) · Wikipedia – Vörös tölgy (CC BY-SA 4.0) · Care data is for guidance only.

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