Practical gardening for the place you actually live.
See what to do in the garden now →
CULTIVRA garden tools
Free calculators, planners and practical helpers for sunlight, spacing, soil, watering, planting dates and the everyday decisions that shape a garden.
Search by task — sun, spacing, soil, watering, planting dates, bed size, garden planning and more.
Use your USDA zone as a starting point, then add heat, rainfall and the conditions that make your actual garden different.
Open the guide → Measure your sunTurn real observations from your yard into a usable full sun, part sun or shade estimate.
Calculate your sun → Plan your spacingTranslate mature plant size and bed dimensions into a spacing plan that still works later.
Plan your spacing →The tool library
Choose a garden decision, then use the tool built for it.
Use climate and seasonal timing to narrow what is realistic where you garden.
Climate
Understand what your USDA zone tells you — and what it does not.
Calendar
Work backward from frost dates to estimate sowing and transplant timing.
Season
Estimate the frost-free window available for crops and seasonal projects.
Turn what you observe in the yard into better placement decisions.
Plan how many plants fit, where they go and when they should be started.
Estimate volume, mulch and watering needs without doing the math by hand.
Make the garden easier to visualize before you buy or move anything.
Planting design
Organize candidate plants by height, bloom season, color and conditions.
Budget
Estimate plants, soil, materials and contingency before a project begins.
Containers
Match plant growth and root needs to a more realistic pot size.
Keep recurring garden work organized without turning it into another full-time job.
Try a broader word such as “sun,” “soil,” “water,” “spacing” or “planting.”
Coming to CULTIVRA
Future tools are kept separate from the live library, so you always know what is ready to use.
Build planting windows around average first and last frost dates.
PlannedIdentify walls, slopes, wind, drainage and heat-reflecting surfaces.
PlannedSpace repeated sowings across the season instead of planting everything at once.
Coming nextUse a simple infiltration test to understand how quickly water moves through soil.
PlannedSketch beds, paths and functional zones before planting.
PlannedOrganize pruning decisions around flowering habit, growth and season.
How CULTIVRA tools are built
Every tool should help you make a garden decision, not simply produce a number without context.
Ask only for the information needed to solve the garden task.
Explain the assumptions that can change the result in a real garden.
Give a clear answer, then point to deeper guidance when context matters.
Help us build the library
Suggest a decision or calculation that would make your garden easier to plan.