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Linaria canadensis - (L.)Dum.Cours.
                 
Common Name Blue Toadflax
Family Scrophulariaceae
USDA hardiness 4-8
Known Hazards None known
Habitats Dry sterile or sandy soils, often a weed in sandy loams[43].
Range N. America - Nova Scotia to Florida, west to Minnesota, Oregon, Texas and California
Edibility Rating  
Other Uses  
Weed Potential No
Medicinal Rating  
Care
Fully Hardy Well drained soil Moist Soil Full sun

Summary

Linaria canadensis Blue Toadflax


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Linaria canadensis Blue Toadflax
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Physical Characteristics
 icon of manicon of flower
Linaria canadensis is a ANNUAL/BIENNIAL growing to 0.6 m (2ft).
It is hardy to zone (UK) 4. The flowers are hermaphrodite (have both male and female organs)Suitable for: light (sandy) and medium (loamy) soils, prefers well-drained soil and can grow in nutritionally poor soil. Suitable pH: acid, neutral and basic (alkaline) soils. It cannot grow in the shade. It prefers dry or moist soil and can tolerate drought.

Synonyms

Habitats
 Cultivated Beds;
Edible Uses
None known
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.

Antihaemorrhoidal;  Diuretic;  Laxative.

The leaves are antihaemorrhoidal, diuretic and laxative[61, 254]. They are applied externally in the treatment of haemorrhoids[254].
Other Uses
None known
Cultivation details
A very drought resistant plant once established, it thrives in a poor gravelly soil[200]. Nitrogen-rich soils produce excessive leaf growth at the expense of flowering[200]. Prefers a sunny position[200].
Propagation
Seed - sow spring in situ[200]. An autumn sowing can also be made in areas with mild winters[200]. This sowing will produce larger plants.

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Other Names
Found In
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
Castilleja linariaefoliaWyoming Indian Paintbrush12
Linaria vulgarisYellow Toadflax, Butter and eggs12
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Author
(L.)Dum.Cours.
Botanical References
4350200
Links / References
For a list of references used on this page please go here
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Subject : Linaria canadensis  

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