Choosing planting tools
Match the tool to the size of the root, and buy a trowel whose handle will not part company with its blade.
The hole should fit the roots
A planting hole wants to be about twice the width of the root ball and no deeper than the root ball is tall. Deeper is actively harmful: the plant settles as the loose soil beneath it compacts, and the stem ends up buried.
This is why planting tools are narrow and marked with depths rather than large and general. A tool that makes the same hole every time is what makes a row of plants sit at the same level.
- Twice as wide
- Room for roots to spread into loosened soil, which is where the first season's growth happens.
- Never deeper
- Loose soil under a root ball compacts and the plant sinks. Firm ground under it, loose around it.
- Depth marks help
- A graduated trowel or bulb planter repeats a depth. Judging by eye gives a row that looks uneven.
What separates a good trowel from a bad one
Trowels fail in one place: where the blade meets the handle. A pressed steel trowel with a folded tang riveted into a plastic handle will loosen and then snap, usually the first time it is used as a lever on a stone.
What to look for is a single piece of forged or cast metal running through the handle, or at minimum a solid tang running its full length. Stainless releases soil more easily; carbon steel takes a sharper edge for cutting roots.
- One piece or full tang
- The blade to handle joint is the only part that fails. Everything else lasts decades.
- Stainless for clay
- Soil releases from it far more readily, which in heavy ground is the difference you notice most.
- Sharpen the edge
- A trowel with a filed edge slices small roots instead of dragging them. Nobody does this and it works.
- Depth graduations
- Etched, not printed. Printed markings are gone within a season.
Handling seedlings without killing them
A seedling is damaged by being held by the stem and by having its root hairs torn. Hold a leaf instead: a plant can grow a new leaf and cannot grow a new stem.
The tools for this are deliberately small and blunt. A widger slides under a root ball and lifts it out whole, and a dibber makes a hole the seedling drops into so the roots never have to be pushed through soil.
- Hold a leaf
- Never the stem. A crushed stem is fatal and a lost leaf is not.
- Lift, do not pull
- A widger or a small dibber under the root ball. Pulling a seedling out strips the root hairs off.
- Make the hole first
- The roots should be placed into an existing hole, not pushed into soil to make one.
- Firm gently, then water
- Water settles soil around the roots better than pressing does, and does not compact it.
Bulbs are about depth and quantity
Most bulbs go in at about three times their own height, and planting a hundred of them means the tool matters more than for any single plant. A bulb planter that cuts a clean plug and releases it reliably is worth the difference over one that jams.
In turf, a plug tool is the only tidy option, because it lifts the turf out intact and puts it straight back. A trowel in a lawn leaves a scar that is visible for the rest of the season.
- Three times the height
- A 50mm bulb goes 150mm deep. Too shallow and it comes up blind or gets eaten.
- Plug tools in turf
- The turf goes back exactly where it came from. A trowel leaves a visible scar for months.
- Check the release
- A long handled planter that does not eject its plug cleanly will make a hundred bulbs miserable.
- Point upward
- Most bulbs have an obvious flat base. Planted upside down they mostly recover, and later.
Keeping planting tools working
These tools live in soil and get put away wet, which is the main reason they wear out. Soil holds moisture against steel and pits it, and a pitted trowel drags in the ground so every hole takes longer.
Clean them, dry them, and if there is a wooden handle give it oil once a year. This is thirty seconds a session and it is the difference between tools that last a decade and tools that last two years.
- Scrape and dry
- Wet soil on steel pits it. The pitting is what makes an old trowel feel like hard work.
- Oil wooden handles
- Once a year with linseed. Dry ash splinters, and a split handle cannot be repaired.
- Bright paint or tape
- Small tools put down in a border disappear. A stripe of colour finds them again.
- Store off the floor
- The shed floor is the dampest part of the shed, and small tools are the ones left on it.
Frequently asked questions
- What hand tools do I need for planting?
- A trowel, a hand fork, a dibber and a bulb planter cover almost everything. Add a widger for pricking out seedlings and a transplanting trowel for anything in a pot. That is a complete planting kit and it costs less than one powered tool.
- How deep should a planting hole be?
- About twice the width of the root ball and no deeper than the root ball is tall. Digging deeper is a common mistake: the loose soil underneath compacts, the plant settles, and the stem ends up buried, which causes rot at the collar.
- What is a dibber used for?
- Making a narrow hole for seedlings, bulbs and cuttings by displacing soil rather than removing it. Because nothing has to be backfilled the roots go into an existing hole, which avoids pushing them through soil and stripping the root hairs off.
- What is a widger?
- A narrow spoon shaped tool for pricking out seedlings. It slides under a root ball and lifts it out whole, so the roots are never pulled. It also eases a seedling out of a cell tray without having to squeeze the tray or grip the stem.
- How do I choose a good trowel?
- Look at where the blade meets the handle, because that is the only part that fails. A one piece forged or cast trowel, or one with a solid tang running the full length of the handle, will last decades. A folded pressed tang riveted into plastic will not.
- Are stainless steel garden tools better?
- For planting in heavy or clay soil, yes, because soil releases from stainless far more easily and it does not rust. Carbon steel takes and holds a sharper edge, which helps if you are cutting through small roots. Stainless is the easier choice for most gardeners.
- How deep do bulbs go?
- About three times the height of the bulb, so a 50mm bulb sits roughly 150mm deep. Too shallow and it may come up blind, dry out or be dug up by animals. A bulb planter with depth markings makes this repeatable across a hundred bulbs.
- How do I plant bulbs in a lawn without ruining it?
- Use a bulb planter, which cuts and lifts a plug of turf and soil intact so it can go straight back afterwards. Within a fortnight the plug is invisible. A trowel leaves a torn scar in turf that stays visible for the rest of the season.