Prize-winning crossword

When all the answers are in place, the le ers in squares 1 to 7 will spell out a species or variety name, the meaning of which is spelled out across the bo om of the grid. The le ers in odd-numbered squares 9 to 13 and even-numbered squares 14 to 22 will spell out two trees to which the term can be applied.

ACROSS

8 Holding immoderate views (9) 9 Fighting force (4)

10 Synthetic material polluting the oceans (7)

12 ___ Gardens, near Southampton, housing the Rothschild Collection of azaleas, rhododendrons, and more (6) 13 The ‘H’ of 22 across (3) 14 Japanese art of dwarf tree growing (6)

17 Prepare soil for crops (4) 18 Prickly flowering shrub (4) 19 Famous public school (4) 20 Study intensively before an exam (4)

21 Garden songbird (6)

22 Le ers preceding the name of a naval vessel (initials, 3)

24 Sco ish fishing port, the northernmost town on the British mainland (6)

26 Stack of dried, cut grass (7) 30 Tined garden implement (4) 31 Edible maize kernels (9)

DOWN

1 Quick, furtive look (4) 2 Sicilian volcano (4) 3 Bird’s home (4)

4 Field drainage channel (5) 5 Most extreme, greatest (9) 6 Young 23 down 7 Belladonna lily (9) 11 Complex whole, network (6) 15 Forcibly remove from power (9) 16 Early nickname for a steam locomotive (4,5)

17 Great fear (6)

23 Woolly ruminant (5) 25 Garden implement for gathering fallen leaves (4) 27 Abominable Snowman (4) 28 Symbol on computer screen (4) 29 Male monarch (4)