Plan a garden that actually fits your yard
Planterium works in real dimensions. Draw beds at actual size and plant cultivars at their true spacing, then watch the season take shape around your frost dates.
Design
Sketch your yard to the inch
Draw raised beds, in-ground plots, troughs, and pots at their real sizes, then add a gravel path, a picket fence, or a greenhouse. When something looks wrong, grab it and move it. You never have to fill out a dialog to change your garden.
Walk it in 3D
See the garden before you build it
Switch to 3D and your plan becomes a scene you can walk through, with every bed, plant, and fence right where you placed it. Orbit the greenhouse, or check how much shade the corn will cast in August.
Season Planner
The whole season on one page
The Season Planner charts every crop from sowing to harvest against your frost window. You can tell at a glance when a bed frees up for a second sowing and what will still be in the ground in October.
Plant
Plant the varieties you grow
The catalog holds over 1,800 real cultivars, from Golden Bantam corn to Genovese basil, each with its own spacing, sowing depth, and days to maturity. Drop one into a bed and the plan fills in the rest.
And plenty more
From first sketch to final harvest
Tasks that write themselves
Every planting generates its own care schedule, from sowing through harvest. It all lands on the Today page, which accounts for your frost dates and the week's weather.
1,800+ cultivar catalog
Searchable varieties with germination, spacing, depth, and maturity data. Free accounts start with a set of classics; Premium unlocks the whole catalog.
Frost-aware planning
Set your location once and your frost window follows. Sowing windows and harvest projections are built on it, and so is the Season Planner.
True-to-scale editor
Works in feet and inches or in metric. If it fits on the screen, it will fit in the yard.
Sun & shadows
Simulate sunlight through the day and the year, or paint a sun-hours heatmap over the whole plan.
3D garden view
Walk through the garden before you build it. You can edit here too, and the plan keeps up.
Aerial backdrop
Put a satellite photo of your property under the plan so your layout matches the actual yard.
Trees
Plant shade and fruit trees with real canopies. They cast shade in the sun simulation too.
Fences, paths & structures
Frame the garden with six fence styles and five path surfaces, plus greenhouses, sheds, and arbors.
Planterium Premium
Premium adds the 3D view, sun and shadow simulation, aerial imagery, the full catalog, trees, structures, and as many gardens as you want to plan.
Give next season a head start
The free plan includes one garden with a starter catalog and the full planner. No credit card required.