‘What actually makes a rose old?’ John asked. ‘What?’ Sir Christopher asked back. ‘I was just wondering who decides if a rose is “old” or not. Is there some sort of cut-off date? Or are they a particular species?’ ‘They’re not a species,’ Sir Christopher said scornfully. ‘Yes, but, uh, I mean,’ John persisted, ‘I was curious to know how old roses came into being.’ ‘They’re hybridized from the seed of other roses by breeders.’ ‘Not from the wood?’ John asked. ‘You only have to go downstairs and get your beautiful book,’ Sir Christopher said impatiently, ‘to have all your questions answered.’ ‘Yes,’ John said, turning toward the door. Phoney, he said to himself, descending the stairs. And he’s meant to be such a great authority on horticulture. That’s why he doesn’t like being questi

