Step 1: Understand edges in a garden:
An edge is the border line between a lawn, bed or path.
It can be formal or informal in design.
Step 2: Formal edges:
Formal edges are straight, neat and geometric.
They are made with clipped hedges, bricks or stone strips.
They need regular trimming and upkeep.
They give a tidy, planned look.
Step 3: Informal edges:
Informal edges are curved, flowing and natural-looking.
They use loose plants, shrubs or natural stones.
They need less upkeep.
They give a soft, relaxed look.
Final Answer:
Formal edges are straight, clipped and geometric with high upkeep; informal edges are curved and natural with low upkeep.