Rosa 'Roald Dahl' will be launched by David C. H. Austin, David J. C. Austin, the author's widow Felicity Dahl, Sir Quentin Blake and nurse Jodi Betts.
The peach coloured rose is a tribute to Roald Dahl's birth centenary and his book James and the Giant Peach. They will unveil an exclusive illustration of the rose and sign a sculpture.
Some £2.50 from the sale of each rose will be donated to Roald Dahl’s Marvellous Children’s Charity, which helps thousands of seriously ill children in the UK with a rare or undiagnosed medical condition. T
Rachel de Thame will present the first blooms of Peter Beales Roses' Rosa 'Sandringham' to Sandringham head gardener Martin Woods.
Barnardo's Ambassador Rosamund Pike is promoting the charity’s Harkness Roses' 150th anniversary ‘Sweet Syrie’ rose at this year’s show.
RHS ambassador, the celebrity Bake Off cook Mary Berry will launch Harkness's 'Mary Berry' rose.
Other new plants set for launch on Monday include Deliflor's The Princess Charlotte Chrysanthemum which will be launched by the Duchess and Duke of Cambridge, while Ian Lavender ('Pike' in Dad's Army) will launch Downderry Nurseries lavender, which will bear his name.
The 2015 launch, the Time To Live rose, created in 2015 for Breast Cancer Now, will be in the Room Outside garden at Chelsea. It is part of The Sun Flower Square - located in the Grand Pavilion - an industry exhibit led by Peter Seabrook based on the gardening campaign Love the Plot You’ve Got.
The Breast Cancer Now Time To Live rose was launched by Nursery Fresh with Nicki Chapman at the HTA National Plant Show and carries a £1 donation to charity Breast Cancer Now.
Rick McKeever of Lovania Nurseries has designed the Room Outside garden, which has garden centre, grower and maunfacturer input, and will also include the new ‘Princess Charlotte’ chrysanthemum.
Rupert Murdoch and Jerry Hall, Jim Carter and Imelda Staunton, Michael Caine and George Eustice are due to attend the stand.
Meanwhile this year's contestants in the Chelsea New Plant of the Year contest are due to be judged on Monday morning by RHS plant committee members.
On the longlist this year are:
- Binny Plants Nepeta ‘Joanna Reed’ bred by Joanna Reed.
- Brighter Blooms Zantedeschia ‘Nashville’ bred by Sande BV.
- Cayeux Iris Iris ‘Comme un Sourire’, Iris ‘Terre à Silex’and Iris ‘Moustache Rose’ bred by Richard Cayeux.
- David Austin Roses Rosa ROALD DAHL (‘Ausowlish’) bred by David Austin Roses.
- Hardy’s Cottage Garden Plants Gaura ‘Rosy Shimmer’s’ bred by Rosy Hardy, Cirsium rivulare FROSTED MAGIC (‘Lowcir’) bred by Lowaters, Geum ‘Scarlet Tempest’ bred by Elizabeth MacGregor, Hebe ‘Celebration’ bred by Stephen Humphreys and Nepeta × faassenii ‘Crystal Cloud’bred by Sonia Wright.
- Harkness Roses Rosa SWEET SYRIE (‘Harwilling’)and Rosa MARY BERRY (‘Harupon’) both bred by Philip Harkness.
- Harperley Hall Farm Nurseries Primula aurantiaca ‘Harperley Pink’ bred by Gary McDermott and Primula vialii ‘Alison Holland’ bred by John Holland.
- Heucheraholics Heuchera ‘Magic Flute’, Heuchera ‘Hocus Pocus’, Heuchera ‘Silver Gilt’ all bred by Julie Burton.
- Hillier Nurseries Acer shirasawanum MOONRISE (‘Munn 001’) bred by Carl Munn of Munn Nursery Oregon.
- Hogarth Hostas Hosta ‘Smiling Mouse’ bred by Jan Van Den Top.
- Millais Nurseries Rhododendron ‘Huisman’s Sun Star’ bred by Holger Hachmann, Rhododendron ‘Hachmann’s Orakel’, Rhododendron ‘Prinses Máxima’ both bred by Tijs Huisman.
- National Chrysanthemum Society Chrysanthemum ‘Rossano Charlotte’ (Rossano Series) bred by Deliflor.
- Peter Beales Roses Rosa SANDRINGHAM (‘Beamolly’) bred by Peter Beales Roses.
- Philip Tivey & Sons Alstroemeria SUMMER PARTY (Tessumpar’) (Summer Paradise Series) bred by HilverdaKooji BV.
- Plantagogo Heuchera 'Isabella' (Fox Series), Heuchera 'Madison Bride' (Fox Series) both bred by Richard and Vicky Fox.
- Victorian Violas Viola ‘White Horses’ bred by Victorian Violas.
- Birmingham City Councils’ Gerbera Garvinea ‘Sweet Memories’ bred by Florist Holland BV.
- Cooks Garden Centre’s Photinia serratifolia PINK CRISPY (‘Oploo5’) bred by Alexander van Oploo
- Dibley’s Streptocarpus 'Amy' bred by Lynne Dibley.
- Double H Nurseries Phalaenopsis 'Sunny Smell' bred by Johannes and Christian Bremkens.
- HY Hyde’s Lilium ‘Ying’ and ‘Yang’ (name to be confirmed) bred by Vletter Den Haan.
- HW Hyde’s Lilium ROSELILY CHELSEA (name to be confirmed) bred by De Loof.
- Hooksgreen Herbs’ Mentha × piperita f. citrata 'Variegated Grapefruit' bred by Hooksgreen Herbs.
- Scotts’ Solanum tuberosum + Solanum melongena EGG AND CHIPS PLANT bred by Thompson & Morgan.
- Scotts’ Fuchsia FUCHSIABERRY bred by T&M.
- Sun Flower Square’s Calendula POWERDAISY SUNNY ('Kercalsun') (PowerDaisy Series) bred by Kerley & Co.
- Sun Flower Square’s Lilium 'Perfect Joy' bred by Pinetops’ Stuart Paton.
- Sun Flower Square’s Petunia NIGHTSKY ('Kleph15313') bred by Selecta One.
- Sun Flower Square’s Solenostemon scutellarioides CAMPFIRE (‘Uf12823’) bred by Florida Foundation Seed Producers.
- Sun Flower Square’s Tagetes patula 'Strawberry Blonde' bred by T&M.
- Taylors Clematis’ Clematis chiisanensis AMBER ('WIT141205') bred by Stolwijk BV.