Your garden,
thoughtfully planned
Trowel & Error is an intuitive garden planning tool for real gardeners — drag, drop, measure, and grow with confidence.
From blank canvas
to growing plan
Three simple steps between you and a garden you can actually follow.
Build your plant library
Browse a built-in catalog of common vegetables, herbs, and flowers. Add your own custom plants with names and icons. Select exactly what belongs in your garden this season.
Draw your beds
Add garden beds in any shape. Rotate and resize them to match your real outdoor space. Set your compass orientation so sun direction is accurate.
Plan, adjust, export
Drag plants onto your beds and fine-tune the layout. When you're happy, export a clean PDF to take outside or share with someone.
Everything a real
gardener needs
Flexible bed shapes
Create beds in any shape. Rotate freely and set precise measurements in feet, inches, or centimetres.
Custom plant library
Start with a built-in catalog of common plants. Add your own with custom names, icons, and notes.
Sun direction & orientation
Set your compass bearing so your plan reflects real-world sun patterns. Built with AI planting assistance in mind.
Light & dark mode
Plan in whichever mode suits you. Both are carefully designed — no compromises.
Multiple saved gardens
Name and save multiple garden plans. Auto-save keeps your work safe as you go.
PDF export
Export a clean, print-ready PDF of your garden layout to take outside or share with others.
Intuitive canvas controls
Zoom, pan, select, and edit with familiar controls. Drag plants onto beds. Undo and redo work as expected.
Synced across devices
Your gardens are stored in the cloud. Log in from any device and pick up exactly where you left off.
Keyboard shortcuts
Power-user shortcuts for common actions — rename, zoom, undo, and more. Work at full speed without leaving the canvas.