SowWindow
A more thoughtful growing season
Practical reading for turning dates, small spaces and notes into a plan you can use.
Featured guide
Plan a second sowing
Build a repeat-sowing schedule from a start date, interval and cutoff, then review the batches against crop, space and seasonal limits.
Read the guide →All guides
Planning your season
Choose the frost dates for your plan
Choose useful frost dates, keep their uncertainty visible, and enter the right years before building your personal sowing calendar.
Read the guide →Understanding dates
Seed-starting dates are windows, not guarantees
Read a seed-starting range, understand paired transplant dates, and choose a workable date without losing the assumptions behind the plan.
Read the guide →Choosing an action
Direct sowing and transplanting
Choose the planting action your source describes, understand its timing anchor, and avoid adding unsupported tasks to a crop calendar.
Read the guide →Succession planting
Plan a second sowing
Build a repeat-sowing schedule from a start date, interval and cutoff, then review the batches against crop, space and seasonal limits.
Read the guide →Planning your space
Measure a garden bed
Measure usable bed or container dimensions, choose an edge allowance, and understand what a planting-position count includes.
Read the guide →Reading spacing advice
Read plant spacing and row spacing
Tell plant spacing from row spacing, keep growing-method conditions visible, and turn the two measurements into an explicit layout.
Read the guide →Seeds and seedlings
Estimate the number of seeds you need
Turn a target plant count into a transparent seed estimate using your germination, survival and reserve assumptions.
Read the guide →Keeping useful records
Keep a planting plan across seasons
Preserve last season’s notes, duplicate a plan for new dates, and use JSON backups to move editable plans between browsers.
Read the guide →Taking the plan outside
Print a sowing schedule
Prepare a readable planting list, choose the right paper size, and keep printed dates in sync with the editable plan they came from.
Read the guide →Keeping dates useful
Update a plan when your dates change
Change frost dates without losing deliberate edits, review dependent tasks, and refresh the exports you use outside the planner.
Read the guide →From seed tray to garden
Harden off seedlings before transplant day
Make room for gradual outdoor acclimatisation before transplanting. Understand why the weather and plant condition matter more than a fixed countdown.
Read the guide →