Free garden tools and calculators
Simple, free tools to plan your garden and fix common plant problems. No sign-up.
Pot Size and Soil Volume Calculator
Find out how much potting mix a pot holds, how many bags to buy, and whether your pot is big enough for the plant you want to grow.
CalculatorRaised Bed Soil Calculator
Work out how many litres or bags of soil a raised bed or planter box needs, with a simple soil and compost mix.
CalculatorCompost Ratio Calculator (Browns and Greens)
Mix the right amount of dry “brown” and fresh “green” material for compost that breaks down well and does not smell.
CalculatorFertiliser Dilution Calculator
Work out how much fertiliser to mix for the water you are using, from the dose on the label. Includes half and quarter strength.
CalculatorPlant Spacing Calculator
See how many plants fit in your garden bed, with typical spacing for common vegetables and herbs.
CalculatorHarvest Date Calculator
Enter the date you sowed or transplanted to estimate when your vegetables, herbs and fruit will be ready to harvest.
GuideLeaf Problem Guide: Yellow, Brown, Spotted or Curling Leaves
Find out why your plant leaves turn yellow, brown, spotty, curled or droopy, with the most likely causes and what to do about each.
GuideGarden Pest Guide: Identify and Control Common Pests
Learn to recognise aphids, whiteflies, mites, thrips, mealybugs, caterpillars, snails, fruit flies and fungus gnats, with gentle ways to control each.
GuideCompanion Planting Checker: What to Plant Together
Pick two plants to see if they grow well side by side, and browse a chart of good partners and plants better kept apart.
TrackerMy Garden: Plant Tracker with Watering Reminders
Keep a simple list of what you grow, when you planted it, when to check the soil and feed it, and when it should be ready to harvest. Free, saved in your browser.