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Soil & Mulch
Work out how much soil, compost and mulch to buy, in cubic yards, cubic feet and bags.
Start with the Soil Calculator →Explore all Soil & Mulch tools →
Planting
Spacing, seed counts, planting depth and plant data for vegetables, herbs and fruit.
Start with the Plant Database →Explore all Planting tools →
Watering
How much water your garden needs, and the best ways to deliver and collect it.
Start with the Garden Watering Calculator →Explore all Watering tools →
Planning & Calendar
Lay out your garden and time every sowing, transplant and harvest to your frost dates.
Start with the Garden Planner →Explore all Planning & Calendar tools →
Costs
Budget a new garden, from bed frames and soil to plants, seeds and supplies.
Start with the Garden Cost Calculator →Explore all Costs tools →
Plant Problems
Work out what is wrong with a plant, from yellow leaves to pests and watering problems.
Start with the Plant Problems →Explore all Plant Problems tools →
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Practical, well-tested advice for home gardeners: soil, planting, watering and planning, with the numbers to back it up.

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Free gardening calculators and planning tools for US home gardeners. Measure once, buy the right amount, and plant at the right time.

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Results are planning estimates. Check product labels, seed packets and your local Cooperative Extension office for advice specific to your area.

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