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Petasites palmatus - (Aiton.)Gray.
                 
Common Name Sweet Butterbur, Golden Palms Coltsfoot, Sweet Coltsfoot, Butterbur
Family Asteraceae or Compositae
USDA hardiness 6-10
Known Hazards None known
Habitats Low woods, glades and damp clearings[43]. Swamps and along the sides of streams[235].
Range N. America - Newfoundland to Massachusetts, west to Alaska and south to California.
Edibility Rating  
Other Uses  
Weed Potential No
Medicinal Rating  
Care
Moist Soil Wet Soil Full shade Semi-shade Full sun

Summary
Bloom Color: Pink. Main Bloom Time: Late winter. Form: Spreading or horizontal.

Petasites palmatus Sweet Butterbur, Golden Palms Coltsfoot, Sweet Coltsfoot, Butterbur


http://commons.wikimedia.org/wiki/User:Stan_Shebs
Petasites palmatus Sweet Butterbur, Golden Palms Coltsfoot, Sweet Coltsfoot, Butterbur
http://commons.wikimedia.org/wiki/User:Stan_Shebs
   
Physical Characteristics
 icon of manicon of flower
Petasites palmatus is a PERENNIAL growing to 0.4 m (1ft 4in) by 1 m (3ft 3in) at a fast rate. It is in flower from Feb to April, and the seeds ripen in April. The flowers are dioecious (individual flowers are either male or female, but only one sex is to be found on any one plant so both male and female plants must be grown if seed is required) and are pollinated by Insects.The plant is not self-fertile.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: acid, neutral and basic (alkaline) soils. It can grow in full shade (deep woodland) semi-shade (light woodland) or no shade. It prefers moist or wet soil.

Synonyms

Habitats
Woodland Garden Dappled Shade; Shady Edge; not Deep Shade; Meadow; Bog Garden;
Edible Uses
Edible Parts: Flowers;  Stem.
Edible Uses: Salt.

Young flower stalks, used before the flower buds appear, are boiled until tender and seasoned with salt[172, 177, 183]. Flower buds - cooked[183]. Leafstalks - peeled and eaten raw[105, 177, 183, 257]. The ash of the plant is used as a salt substitute[46, 61, 95, 102, 183]. To prepare the salt, the stems and leaves are rolled up into balls whilst still green, and after being carefully dried they are placed on top of a very small fire on a rock and burned[213].
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.

Pectoral;  Salve;  TB.

The roots have been used in treating the first stages of grippe and consumption[257]. The dried and grated roots have been applied as a dressing on boils, swellings and running sores[257]. An infusion of the crushed roots has been used as a wash for sore eyes[257]. A syrup for treating coughs and lung complaints has been made from the roots of this species combined with mullein(Verbascum sp.) and plum root (Prunus sp.)[257].
Other Uses
None known
Cultivation details
Landscape Uses:Seashore, Woodland garden. Succeeds in ordinary garden soil[1], but prefers a deep fertile humus-rich soil that is permanently moist but not stagnant, succeeding in shade, semi-shade or full sun[200]. Requires a moist shady position[187]. Plants can be grown in quite coarse grass, which can be cut annually in the autumn[233]. Plants are hardy to about -20°c[187]. A very invasive plant, too rampant for anything other than the wild garden[187, 200]. Dioecious, male and female plants must be grown if seed is required. Special Features:Attractive foliage, North American native, Invasive, Wetlands plant.
Propagation
Seed - we have no information on this species but suggest sowing the seed in a cold frame as soon as it is ripe or in early spring. Only just cover the seed and do not allow the compost to dry out. When they are large enough to handle, prick the seedlings out into individual pots and plant them out in the summer. Division succeeds at almost any time of the year. Very easy, larger divisions can be planted out direct into their permanent positions. We have found that it is better to pot up the smaller divisions and grow them on in light shade in a cold frame until they are well established before planting them out in late spring or early summer.
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
Petasites albusButterbur21
Petasites frigidusSweet Coltsfoot, Arctic sweet coltsfoot, Arrowleaf sweet coltsfoot, Golden Palms Coltsfoot, Butterb21
Petasites hybridusButterbur, Pestilence wort03
Petasites hyperboreusArctic Sweet Coltsfoot21
Petasites japonicusSweet Coltsfoot, Japanese sweet coltsfoot, Butterbur32
Petasites saggitatusArrowleaf Sweet Coltsfoot21
Petasites speciosa 20
Petasites vitifoliusArctic sweet coltsfoot10
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(Aiton.)Gray.
Botanical References
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Links / References
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Subject : Petasites palmatus  

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