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Hydrophyllum canadense - L.

Common Name John's Cabbage, Bluntleaf waterleaf
Family Hydrophyllaceae
USDA hardiness 4-8
Known Hazards None known
Habitats Damp rich woodland[43].
Range Eastern N. America - Vermont to New York, North Carolina, Ontario, Illinois and Kentucky.
Edibility Rating    (3 of 5)
Other Uses    (0 of 5)
Weed Potential No
Medicinal Rating    (0 of 5)
Care
Fully Hardy Moist Soil Semi-shade
Hydrophyllum canadense John


William S. Justice @ USDA-NRCS PLANTS Database
Hydrophyllum canadense John
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. Vol. 3: 66.

 

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Summary


Physical Characteristics

 icon of manicon of flower
Hydrophyllum canadense is a PERENNIAL growing to 0.3 m (1ft).
It is hardy to zone (UK) 4 and is not frost tender. The species is hermaphrodite (has both male and female organs).
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: acid, neutral and basic (alkaline) soils. It can grow in semi-shade (light woodland). It prefers moist soil.

Synonyms

Habitats

Woodland Garden Dappled Shade; Shady Edge;

Edible Uses

Edible Parts: Leaves;  Root.
Edible Uses:

Leaves - raw or cooked[105, 177, 183]. A delicate potherb[183]. Only use when young, the leaves become bitter with age[159]. Root - cooked[2]. Only eaten in times of scarcity[161].

Medicinal Uses

Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.



None known

Other Uses

None known

Cultivation details

Requires a moist humus-rich soil in semi-shade[200]. Plants are growing well at Kew[K]. Slugs are particularly fond of this plant and will soon destroy it if given a chance[K].

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Propagation

Seed - best sown as soon as it is ripe in a cold frame. The seed usually germinates in early spring. Sow stored seed as early in the year as possible. When they are large enough to handle, prick the seedlings out into individual pots and grow them on in the greenhouse for their first winter. Plant them out into their permanent positions in late spring or early summer, after the last expected frosts. Division in spring or autumn[200]. Very easy, larger clumps can be replanted direct into their permanent positions, though it is best to pot up smaller clumps and grow them on in a cold frame until they are rooting well. Plant them out in the spring.

Other Names

If available other names are mentioned here

Found In

Countries where the plant has been found are listed here if the information is available

Weed Potential

Right plant wrong place. We are currently updating this section. Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.

Conservation Status

IUCN Red List of Threatened Plants Status :

Related Plants
Latin NameCommon NameEdibility RatingMedicinal Rating
Hydrophyllum capitatumCat's Breeches, Ballhead waterleaf, Alpine waterleaf, Thompson's waterleaf30
Hydrophyllum occidentaleWestern Waterleaf30
Hydrophyllum tenuipesPacific Waterleaf20
Hydrophyllum virginianumVirginia Waterleaf, Eastern waterleaf31

 

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Expert comment

Author

L.

Botanical References

43

Links / References

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Subject : Hydrophyllum canadense  
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