New Book ** Edible Perennials: 50 Top perennials from Plants For A Future. Current interest in forest or woodland garden designs reflects an awareness that permanent mixed plantings are inherently more sustainable than annual monocultures. They safeguard and enrich soil ecosystems... more >>

   Bookmark and Share
   
    By donating to PFAF, you can help support and expand our activities
    Plant Suppliers: Click here for a List
Lactuca - (L.)Waller.                
                 
Common Name Blue Sow Thistle
Family Asteraceae or Compositae
USDA hardiness 4-8
Known Hazards None known
Habitats A very rare native of Scotland, growing on alpine rock in moist places[17].
Range Mountainous regions of C. Europe, including Britain, from Norway to the Pyrenees.
Edibility Rating  
Medicinal Rating  
Care
Fully Hardy Moist Soil Semi-shade

Summary       

Physical Characteristics       
 icon of manicon of flower
Lactuca is a PERENNIAL growing to 1 m (3ft 3in) by 0.3 m (1ft).
It is hardy to zone (UK) 4 and is not frost tender. It is in flower from Jul to September, and the seeds ripen from Aug to October. The flowers are hermaphrodite (have both male and female organs) and are pollinated by Bees, beetles, lepidoptera.The plant is self-fertile.
Suitable for: light (sandy) and medium (loamy) soils and prefers well-drained soil. Suitable pH: acid and neutral soils. It can grow in semi-shade (light woodland). It prefers moist soil.

Synonyms
Lactuca alpina. Sonchus alpinus.
Lactuca Blue Sow Thistle


Lactuca Blue Sow Thistle
   
Habitats
Edible Uses                                         
Young shoots and stems - raw[4, 105]. The skin is first removed, but the shoots are still rather bitter and unpalatable[4, K]. Older stems can also be peeled and eaten raw[105, 177, 183] but have a bitter taste[2].
Composition                                         
Figures in grams (g) or miligrams (mg) per 100g of food.
Leaves (Fresh weight)
  • 0 Calories per 100g
  • Water : 92.9%
  • Protein: 2.1g; Fat: 0g; Carbohydrate: 3g; Fibre: 0.5g; Ash: 1.2g;
  • Minerals - Calcium: 26mg; Phosphorus: 30mg; Iron: 0.7mg; Magnesium: 10mg; Sodium: 3mg; Potassium: 208mg; Zinc: 0mg;
  • Vitamins - A: 2200mg; Thiamine (B1): 0mg; Riboflavin (B2): 0mg; Niacin: 0.4mg; B6: 0mg; C: 15mg;
  • Reference: [ ]
  • Notes:
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.



The leaves and milky sap were at one time often used in herbal medicine, though are seldom employed nowadays[4]. They are diuretic and are also applied externally to inflammations[4].
Other Uses
None known
Cultivation details                                         
Prefers a moist well-drained humus rich neutral to acid light sandy soil and some shade[1, 187, 200]. Plants are hardy to at least -20°c[187].
                                                                                 
Propagation                                         
Seed - sow spring in a cold frame. Only just cover the seed and do not let the compost dry out. When they are large enough to handle, prick the seedlings out into individual pots and plant them out into their permanent positions in the summer. Division in spring[188]. We have found it best to pot up the clumps and grow them on in a cold frame until they are rooting well. Plant them out in the summer or following spring.
Related Plants                                         
Latin NameCommon NameEdibility RatingMedicinal Rating
Lactuca biennisTall Blue Lettuce01
Lactuca canadensisCanada Lettuce23
Lactuca capensis 12
Lactuca debilis 32
Lactuca formosana 12
Lactuca indicaIndian Lettuce32
Lactuca indica dracoglossa 22
Lactuca indica laciniata 32
Lactuca ludovicianaWestern Wild Lettuce, Biannual lettuce22
Lactuca perennisPerennial Lettuce32
Lactuca pulchellaBlue Lettuce22
Lactuca quercinaWild Lettuce23
Lactuca raddeana 22
Lactuca sativaLettuce, Garden lettuce33
Lactuca sativa angustanaCeltuce33
Lactuca sativa capitataCabbage Lettuce33
Lactuca sativa crispaCutting Lettuce33
Lactuca sativa longifoliaCos Lettuce33
Lactuca serriolaPrickly Lettuce23
Lactuca sibiricaPrickly lettuce22
Lactuca triangulata 12
Lactuca virosaWild Lettuce, Bitter lettuce13
Plant Suppliers: Click here for a List

      You can download this page as a PDF

Expert comment                                         
 
      
Author                                         
(L.)Waller.
                                                                                 
Botanical References                                         
17200
                                                                                 
Links / References                                         
For a list of references used on this page please go here
Readers comment                                         
 
QR Code

What's this?

This is a QR code (short for Quick Response) which gives fast-track access to our website pages. QR Codes are barcodes that can be read by mobile phone (smartphone) cameras. This QR Code is unique to this page. All plant pages have their own unique code. For more information about QR Codes click here.

1. Copy and print the QR code to a plant label, poster, book, website, magazines, newspaper etc and even t-shirts.
2. Smartphone users scan the QR Code which automatically takes them to the webpage the QR Code came from.
3. Smartphone users quickly have information on a plant directly for the pfaf.org website on their phone.
Add a comment/link                                         

If you have important information about this plant that may help other users please add a comment or link below. Only comments or links that are felt to be directly relevant to a plant will be included. If you think a comment/link or information contained on this page is inaccurate or misleading we would welcome your feedback at admin@pfaf.org. If you have questions about a plant please use the Forum on this website as we do not have the resources to answer questions ourselves.

* Please note: the comments by website users are not necessarily those held by PFAF and may give misleading or inaccurate information.

Subject : Lactuca  
             
                                        
                                                                                 
                                                                                 
   
 

Plant Uses

Edible Uses
Medicinal Uses
Other Plant uses
Woodland Gardening
Why Perennial Plants?
Top Edible Plants
Top Medicinal Plants
Garden Design
Habitats
Translations

Content

Content Help
Bookshop
Support Us
Blog
Links
Suppliers
Contact
About Us
News
Sign In

PFAF Newsletter

Stay informed about PFAFs progress,
challenges and hopes by signing up for
our free email newsletter. You will receive
a range of benefits including:
* Important announcements and news
* Exclusive content not on the website
* Updates on new information &
functionality of the website & database

We will not sell or share your email address.
You can unsubscribe at anytime.