CLUES ACROSS

1 Aromatic plant genus commonly known as catmint (6) 4 - - - - cane, name often given to the foliage houseplant dieffenbachia (4) 8 Colourful S African half-hardy annual called the Transvaal daisy (7) 9 orchard fruit of which ‘Braeburn’ and ‘Bramley’ are examples (5) 10 - - - - Chatto, uK plantswoman with gardens at elmstead Market, essex (4) 11 Heavy, sticky soil type not easy to dig (4) 16 Composted vegetable material or leafmould used as soil conditioner (5) 18 Gloucestershire National Trust garden famous for its lavender (7) 19 evergreen conifer, Pinus sylvestris or Scots - - - - (4) 20 ‘- - - - - - Castle’, creamy white rose and birthplace of Princess Margaret (6)

CLUES DOWN

1 Aquilegia vulgaris ‘- - - - Barlow’, with double red-green blooms (4) 2 Arisaema triphyllum, perennial corm also called jack in the - - - - - - (6) 3 Big striped cat lending its name to a type of Asiatic lily (5) 5 Botanical name for the genus to which common gorse belongs (4) 6 ‘- - - - - -’ of Bath, early nominally handsome cultivar of 9 Across (6) 7 Plant of a wide genus of rhizomes that might be bearded or Siberian (4) 10 Clerical rank denoting dahlia series – llandaff or oxford perhaps? (6) 12 Genus to which dead nettle belongs (6) 13 - - - - in summer, common name for vigorous Cerastium tomentosum (4) 14 Nutcase! (5) 15 The - - - - Project, Cornish global garden housed in tropical biomes (4) 17 Term used for small onion bulbs planted in spring for early crops (4)