He is good at building things; she is clever in the garden. The home and life they’ve built together are outward-focused, expansive and rewarding. Words: Heather Kidd Photos: Tessa Chrisp Mystery awaits upon arriving at the Pahoia home of garden designer Celia Laity and her husband, Hugh. What lies behind the large shed? Or beyond the house, where the first thing to catch the eye is a wooden walkway? The house’s black-panelled walls are a foil for rows of Michelia x foggii ‘Bubbles’, standing sentry-like on both sides of the walkway; Celia loves structure. Where’s the front door? It’s not immediately visible, and