Gardening Tools

Gardening Tools

Plan the garden. Measure twice. Plant once.

Practical calculators, seasonal timing, and layout tools for more confident garden decisions.

PemdasGarden field tools13 focused toolsU.S. climate guidance

Planting Calendar

Build a crop schedule from your local average frost dates. Dates are starting points; weather and soil temperature still decide the day.

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USDA zones measure winter cold hardiness—not frost timing. Use local frost records when available.
Choose a crop and frost dates to see a personalized schedule.

Frost Date Calculator

Get a regional planning estimate for spring and fall frost, with a manual climate fallback.

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Built-in coverage uses representative metro ZIP prefixes, not a weather-station database. Results are planning estimates only.
Enter a 5-digit ZIP code. If no local match is built in, you’ll get a zone-based fallback.

Gardening Zone Lookup

Check a quick built-in estimate, then verify the exact 2023 USDA half-zone for your address.

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Open official USDA map
Your hardiness zone describes average annual extreme minimum temperature for perennial survival.

Monthly Garden To-Do List

A practical monthly checklist adjusted for broad U.S. climate bands.

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When to Prune

Match pruning timing to how the plant flowers and grows—not just the month.

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Select a plant to see the recommended window and the reason behind it.

Garden Planner

Paint an 8 × 5 one-foot grid. Click and drag to place crops; choose Eraser to clear cells.

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Current session only. Download the CSV before closing if you want to keep the plan.

Garden Layout Library

Start with a balanced template, then customize every square in the planner.

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Mulch Calculator

Estimate bulk cubic yards and bag count for a rectangular or circular bed.

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Enter dimensions to calculate mulch volume.

Soil Calculator

Estimate soil volume for raised beds, planters, or grade adjustments.

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Enter dimensions to calculate soil volume.

Topsoil Calculator

Calculate screened topsoil for lawn repair, leveling, or new beds.

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Enter dimensions to calculate topsoil volume.

Vegetable Container Size

Find a practical minimum pot volume and depth for common edible crops.

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Select a crop to check its minimum container needs.

Companion Plant Lookup

Use interplanting for diversity, space, and pest management—without treating traditional pairings as guarantees.

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“Avoid” often means shared pests, competing growth, or crop-rotation risk—not that plants poison one another.
Select a crop to see useful neighbors and cautions.

Plant Problem ID

Select every symptom you can observe. The tool ranks common causes and gives confirmation checks.

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This is triage, not a lab diagnosis. Before treating, inspect leaf undersides, roots, soil moisture, and recent weather.
Choose one or more symptoms to narrow the likely causes.
Methods, limits & horticultural sources
USDA: how hardiness zones are defined Montana State Extension: planting and container guidance Texas A&M AgriLife: vegetable planting windows UGA Extension: home gardening fundamentals WVU Extension: companion planting Mississippi State Extension: companion planting evidence

Planting and frost results are planning ranges, not guarantees. Local elevation, slope, urban heat, and microclimates can shift conditions by days or weeks. For serious disease or pesticide decisions, contact your county Cooperative Extension office.