Square-foot grid
Density follows each plant's mature size, so 4 lettuces fit in a square and 1 tomato fills one. Tap a square to place a plant.
Free planner
A free square-foot garden planner with crop rotation built in
Lay out your beds to scale, see plants-per-square, and get warned when you're breaking rotation or pairing bad neighbors. It's free, it works offline, and you don't need a credit card.
What you get.
Crop-rotation warnings
Siltwell remembers what grew in each bed and flags it when you're about to repeat a family too soon. A repeated family lets the pests and diseases that target it build up in the soil.
Companion warnings
It flags neighbors that stunt each other, compete for nutrients, or share a disease, from a curated rules set.
To-scale garden map
Place your beds and see the whole plot.
Works offline
Plan in the garden with no signal. Your changes sync when you're back online.
Succession suggestions
When a bed frees up, Siltwell checks each crop's days to maturity against your first frost date and suggests what still finishes in time.
Most apps charge for the layout. Siltwell's is free.
The paid tier adds the weather-station and soil-sensor features. It also adds garden sharing and lifts the limits on photos and weather history.
Common questions.
Yes. The layout, journal, and 150+ plant catalog are free forever. You don't need a credit card.
Yes. You sign up for a free account with your email address.
It works on both. You can install it like an app or use it in any browser.
