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Our Story

Twelve Nunns established a plant nursery in south Lincolnshire in 2012. We decided that the plants that we grow for garden centres should be made available by mail order direct to customers.

Penny Dawson owns and runs the business. Her parents, Hugh and Liz Nunn, had a specialist wholesale nursery in Harvington near Evesham as she was growing up until their retirement in 2015. Formerly a Nunn and with the maternal family name of Twelves under threat of extinction, what more was needed to name her business…


These petite Narcissus are hard to get hold of.  Buy and try these delightful plants.


We offer freshly lifted, healthy Trillium rhizomes with live roots that will transplant easily.  They will be available to buy again in the summer ready for the despatch season in August-November.

Please note our availability list below – some are in plentiful supply others are available in small numbers.

Our Trillium 2019 brochure

Printable Trillium Order Form 🖨

If you would like us to contact you at the right time for ordering Trillium, please email:

Our Trillium varieties

Trillium flexipes 'Harvington Selection'

  • Trillium albidum
  • Trillium erectum album ‘Harvington Clone’
  • Trillium flexipes ‘Harvington Hybrids’ (from flexipes x simile)
  • Trillium flexipes ‘Harvington Selection’
  • Trillium grandiflorum
  • Trillium grandiflorum ‘Flore Pleno’
  • Trillium grandiflorum f. roseum
  • Trillium simile
  • Trillium sulcatum
  • Trillium vaseyi

Trillium in stock


We despatch Roscoea tubers during March and April while dormant. They are sold as large flowering-sized tubers ready for planting out.  They will be available to order again from early 2020.  Please email  with your details if you would like us to email/post you the list at the best time for ordering.

Our selection of Roscoea includes four with the prefix ‘Harvington’:

R. ‘Harvington Royale’

R. ‘Harvington Raw Silk’

‘R. ‘Harvington Evening Star’

R. ‘Harvington Imperial’

R. ‘Harvington Summer Deep Purple’

These are a set of distinctive plants bred by Hugh Nunn in the Vale of Evesham and selected for their beauty, vigour and garden worthiness.  Several have been awarded the Royal Horticultural Society’s Award of Garden Merit (AGM) in recognition of these characteristics.

Roscoea are robust herbaceous perennials in the ginger family.  They are suitable for the front of borders, in a rock garden or grown in a container.  With orchid-like flowers in the summer they can be found in colours ranging from white and cream through pinks, brick reds and purples.  They have tuberous, fleshy roots (similar in appearance to dahlia) that become dormant in late autumn, with strap shaped leaves from April onwards and flower from May through until early September.  Some appear as late as June in the case of R. ‘Red Gurkha’.  They are hardy throughout the British Isles.



Our Erythronium bulbs will be available to buy again next Spring. We despatch dormant, freshly lifted, flowering size bulbs in July and August ready for potting up or planting direct into the garden.

Please note our availability list below – some are in plentiful supply others are available in small numbers.

Erythronium 2018 (PDF)

Erythronium Order Form 2018 (PDF)


If you would like us to contact you at the right time for ordering Erythronium bulbs, please email

We have some superb new hybrids that will become available over the next year or so – we select out new colours and forms each season.

Species and Derivatives

E. albidum

E. californicum

E. dens-canis ‘Old Aberdeen’

E. dens-canis ‘Snowflake’

E. hendersonii

E. howellii

E. oregonum

E. revolutum

E. revolutum ‘Knightshayes Pink’

E. tolumnense ‘Spindlestone’


E. ‘Harvington Snowgoose’

E. ‘Harvington Wild Salmon’

E. ‘Hidcote Beauty’

E. ‘Suzannah’

E. ‘White Beauty’

All the above will be available this season.


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Photo © Tim SandallR

Twelve Nunns is a small specialist nursery near Stamford, Lincolnshire selling pot plants, plug plants, seeds and bulbs direct to you through our online shop and by mail order. We are not open to visit.


Postal Address: 16 Carisbrook Grove, Stamford, Lincolnshire PE9 2GF

Telephone Number: 01778 590455

We are often out on the nursery talking to the plants so please excuse us if we can’t answer the phone. Please leave a message and we will call you back as soon as we can.