Possible Clues:

• Spotted horse that's white — not black
• Spotted gardens nestling in southern plain
• Small garden area, plain with patches of colour
• Marked with patches of white and a colour
• Sort of horse far from stable that's unlocked?
• Of a horse, white with patches of another colour (except black)
• Brown and white horse
• Mottled horse crooked and hairless
• Of horses, having patches of a different colour
• Singular gardeners seen here exposed patterned jumper perhaps