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Data provenancePermapeopleTreflePFAFreviewed 13 Oct 2026methodology → read

Petasites speciosa

Petasites speciosa
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Petasites speciosa (Petasites speciosa) — botanical photograph
Pl. ECB9 — Petasites speciosa
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I

Overview

Petasites speciosa, commonly known as giant rhubarb or umbrella plant, is a perennial herb native to central and eastern Europe. It thrives in moist, wet conditions with light (sandy), medium, or heavy (clay) soil, preferring a pH of 7.5–8. This adaptable plant can grow quite tall and wide, often reaching up to 2 meters in height, making it an impressive addition to gardens or natural landscapes. Its large, edible leaves are the primary part used for culinary purposes, offering a mild rhubarb-like flavor that can be enjoyed as a spinach substitute. In spring, Petasites speciosa produces distinctive umbrella-shaped flower clusters, adding ornamental value to its surroundings. The plant's size and growth habit make it suitable for borders or large garden areas where space is not an issue. For optimal growth, ensure the soil remains consistently moist and provide full sun to partial shade with moderate light needs. Propagation can be achieved through division of the rhizomes in early spring. While Petasites speciosa is primarily used for its edible leaves, it should be noted that caution is advised when handling or consuming any part of this plant due to potential irritants.

Quick answers

What is Petasites speciosa?

Petasites speciosa, commonly known as giant rhubarb or umbrella plant, is a perennial herb native to central and eastern Europe. It thrives in moist, wet conditions with light (sandy), medium, or heavy (clay) soil, preferring a pH of 7.5–8.

Growingconditions · propagation · uses
V

Cultivation

Petasites speciosa thrives in moist to wet conditions and prefers light (sandy), medium, or heavy (clay) soils. It is a perennial forb/herb that requires full sun to partial shade with moderate light needs. For optimal growth, maintain consistently moist soil; avoid drought. The plant can be propagated through division of the rhizomes in early spring. Leaves are edible and can be harvested for use as a spinach substitute. Soil pH should be maintained between 7.5 and 8. This plant is hardy in temperate regions.
Light
7/10
Water
Moist, wet
Soil
Light (sandy), Medium, Heavy (clay)
Life cycle
Perennial
Habit
Forb/herb
Soil pH
7.5–8
For first-time growers

How to grow Petasites speciosa for the first time

8steps

Start with Petasites speciosa as a simple, low-maintenance perennial for your garden.

  1. 1

    What you'll need

    A healthy Petasites speciosa plant or division, well-draining soil, and a container if planting in pots.

  2. 2

    Best time to plant

    Plant in early spring before new growth starts or in late summer after the heat has passed.

  3. 3

    Soil and container prep

    Ensure the soil is moist but well-draining, with a pH of 7.5–8. Use a pot with good drainage holes if planting in containers.

  4. 4

    Sowing or transplanting

    Transplant divisions from an established plant or purchase a healthy plant from a nursery.

  5. 5

    First two weeks

    Water the plant regularly to keep the soil moist but not waterlogged. Avoid direct sunlight for the first few days.

  6. 6

    Ongoing care

    Provide partial shade and regular watering, especially during dry spells. Fertilize sparingly with a balanced fertilizer in early spring.

  7. 7

    Harvest or pruning

    Prune dead foliage in late winter to maintain the plant's health and appearance.

  8. 8

    Common mistakes

    Overwatering, planting in full sun, using soil with incorrect pH, and not providing enough shade are common issues.

VI

Edible & utility

Edible parts:Leaves
Edible uses: Salt
Contextrange · companions · related
VII

Distribution

36 native · 1 introduced
Distribution across2 continents· 36 native· 1 introduced
Europe23 regions
native (23)AlbaniaAustriaBelarusBelgiumBulgariaDenmarkFinlandFranceGermanyGreeceHungaryIrelandItalyNetherlandsNorwayPolandRomaniaRussiaSpainSwedenSwitzerlandUkraineUnited Kingdom
Asia2 regions
native (2)IranTurkey
Broader regions
native:Baltic States, Czechoslovakia, Transcaucasus, Turkey-in-Europe, Yugoslavia
introduced:New York
IX

Specimen gallery

1 image
Petasites speciosa (Petasites speciosa) — botanical photograph
Petasites speciosa (Petasites speciosa)
XI

Explore further

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