These De Wit hand spades are a great mid-length tool for properly getting in between those border plants - giving you better accessibility than a cumbersome digging/border spade but more leverage than a hand trowel. The cutting edge is sharp (unlike most hand spades you'll find) and the handle is made from solid Ash wood.
Standard: 56cm (overall length) 11 x 17cm (head size)
Heart-shaped: 51cm (overall length) 12 x 12xm (head size)
De Wit tools are hand made in Holland using Swedish Boron steel - the same steel used on bulldozer blades. So, yep, it's really, really tough! And they've been doing this for over 120 years so they know what they're doing.