Garden Care Planner

Estimate daily water needs from your local climate, size a fertilizer application, and plan crop rotation & pruning windows.

Location & date

Latitude (°, 0–90)

Hemisphere

Date

Used to estimate the sun's angle for your location (no external weather API needed).

Today's temperatures

Max temp (°C)

Min temp (°C)

Crop & bed size

Crop stage / type (Kc)

Bed / garden area (m²)

Results

Reference ET₀

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Crop water need

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Water for this bed / week

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ET₀ is a Hargreaves-Samani estimate from temperature and day length — a solid planning figure, but local humidity, wind and cloud cover shift the real number. Feed the weekly volume above into the Irrigation Budget tab of the Garden Project Calculator to plan zone runtimes.

Bed area

Bed shape

Length (m)

Width (m)

Target application rate

Crop / planting type

Approximate general guidelines (kg/ha of N–P₂O₅–K₂O). A soil test will always give a more precise target.

Your fertilizer product

Enter the three numbers on the bag (e.g. 10-10-10).

N %

P₂O₅ %

K₂O %

Results

Product needed

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Nutrients delivered vs. target

Nitrogen (N)–

Phosphate (P₂O₅)–

Potash (K₂O)–

Delivered at this amountTarget rate

The product amount is set by whichever nutrient is hardest to satisfy — so the other two are often oversupplied. Split large doses across the season instead of applying it all at once.

Crop rotation wheel

Number of beds

Years to plan

Bed 1 starts with

Rotating through these four families in order keeps any one pest, disease or nutrient drain from building up in the same soil year after year.

Pruning calendar

Plant type

Rotation schedule