Illustration of Site Analysis for Permaculture Design: Map Sun, Wind, and Water

How to Map Sun, Wind, and Water Before You Design a Permaculture Yard

A good permaculture yard does not begin with plants. It begins with observation. Before you sketch a garden bed or choose a fruit tree, you need to understand how light, air, and water move across the site. That early site analysis shapes every later decision, from where to place a pond to which side of the yard should hold shade-loving herbs.

In permaculture, design works best when it follows the land rather than fighting it. A sun map shows where the brightest and darkest parts of the yard are over the course of a day and season. Wind exposure reveals where cold air, hot gusts, and protective shelter matter most. Water flow explains where rain collects, where it runs off, and where the soil stays damp after a storm. Together, these three layers create a practical foundation for thoughtful permaculture design.

This kind of mapping does not require special equipment. It requires time, attention, and a willingness to watch the yard in more than one season. The reward is a landscape that works with the climate instead of against it.

Why Early Mapping Matters

Illustration of Site Analysis for Permaculture Design: Map Sun, Wind, and Water

Many garden failures begin with assumptions. A bed that looks sunny in March may be shaded by June. A corner that feels breezy in spring may become a wind tunnel in winter. A low spot that seems harmless in dry weather may turn into a soggy patch after a hard rain.

Mapping the site early helps you:

  • Place trees, beds, and structures where they will actually perform well
  • Reduce irrigation and drainage problems
  • Protect tender plants from wind and temperature stress
  • Match crops to microclimates within the yard
  • Avoid costly redesign later

In other words, site analysis is not a preliminary chore. It is the backbone of a resilient plan.

Start With a Base Map

Before you observe sun, wind, or water, create a simple base map of the yard.

What to include

Sketch the property outline and note:

  • House, garage, shed, fences, driveway, patio, and paths
  • Large trees and shrubs
  • Slopes, low areas, and raised areas
  • Downspouts, gutters, drains, and hard surfaces
  • Utility lines, septic features, and easements
  • Neighboring buildings, tall fences, or tree lines that cast shade or block wind

You do not need architectural precision. A hand-drawn map on graph paper is often enough. If you prefer digital tools, use whatever is easy to print and annotate. The goal is to build a working layer you can mark over time.

Mapping the Sun

A sun map is one of the most useful tools in permaculture design because light governs plant health, soil moisture, and temperature. Sun patterns change with the season, and those changes matter a great deal.

Observe at different times of day

Visit the yard at least three times on a few different days:

  • Early morning
  • Midday
  • Late afternoon

Note where the sun falls and where shadows land. In the morning, east-facing areas warm first. In the afternoon, west-facing areas may become hot and dry. Some spaces receive full sun all day, while others get only a narrow window of light.

Track seasonal changes

If possible, observe the yard in both warm and cool seasons. The angle of the sun shifts through the year, and so do shadows from buildings and trees. A spot that gets strong winter sun may be heavily shaded in summer by deciduous leaves. That can be useful if you want seasonal comfort, but it matters for crop placement.

Make a sun map

On your base map, mark:

  • Full sun areas: 6 or more hours of direct sun
  • Partial sun or partial shade: 3 to 6 hours
  • Full shade: less than 3 hours

You can use simple symbols or colored pencils. Try recording the sun at different times of day, then combine the observations into one map. Areas that stay bright all day may suit tomatoes, peppers, and herbs. Shadier places may be better for leafy greens, mushrooms, ferns, or water-holding mulch zones.

Pay attention to heat reflection

Sun is not just about light. Hard surfaces such as concrete, siding, and stone can reflect and store heat. A south-facing wall may create a warm microclimate suitable for heat-loving plants, but it may also dry out nearby soil faster than expected.

Understanding Wind Exposure

Wind is easy to ignore until it becomes a problem. Strong wind can strip moisture from leaves, damage young plants, and cool a yard more than the air temperature suggests. In colder climates, wind exposure can make a small site feel several degrees colder. In hot climates, moving air may be welcome, but persistent gusts can still stress plants and soil.

Notice the direction of prevailing winds

Local weather data can help, but your yard may behave differently because of trees, buildings, and topography. Spend time outside on breezy days and note where the wind seems to come from most often. Look for:

  • Open corners where air accelerates
  • Gaps between buildings that create wind tunnels
  • Sheltered spaces behind fences or hedges
  • High points or ridges where wind is stronger
  • Protected pockets near walls or evergreens

Use simple indicators

You can observe wind without tools, though a few simple markers help:

  • Hang ribbons or light string in several spots
  • Watch how grasses and small branches move
  • Note where snow drifts or leaves pile up
  • Observe which side of the house gets the strongest winter drafts

A yard may have multiple wind patterns. A front yard can receive different exposure than a back yard, and winter winds may differ from summer breezes.

Mark wind zones on your map

Create zones such as:

  • Strong exposure
  • Moderate exposure
  • Sheltered
  • Very sheltered

In permaculture design, wind can be both enemy and ally. You may want a windbreak for seedlings and fruit trees, but you may also want airflow to reduce mildew in dense plantings. A well-placed hedge, fence, or layered planting can soften harsh wind without blocking all movement.

Think in layers, not walls

A living windbreak is usually better than a solid barrier. Dense shrubs, small trees, and understory plantings slow wind more effectively than a rigid fence alone. They also create habitat and improve the feel of the yard.

Reading Water Flow

If sun is the energy source and wind shapes microclimate, water is the force that most clearly reveals the land’s behavior. Water flow affects soil erosion, planting choices, drainage, and even access. A good water map helps you understand not just where water lands, but where it moves, pauses, and disappears.

Watch a yard during and after rain

The best water analysis comes from real storms. Walk the property during rainfall if it is safe, and again an hour or two after the rain ends. Note:

  • Where water runs off roofs and hard surfaces
  • Where puddles form
  • Which areas drain quickly
  • Which slopes shed water downhill
  • Where soil stays dark and wet longer than other areas

Take photos and make quick notes. Even a brief observation can reveal patterns that are easy to miss on dry days.

Study the slope

Water follows gravity, so the shape of the land matters. Even slight slopes can direct runoff toward one side of the yard. If you have a gentle incline, identify the high points and low points. If the property is nearly flat, water may move more slowly and collect in subtle depressions.

To record slope, you can use:

  • A level
  • A long board and a carpenter’s level
  • A simple laser level
  • Topographic information if available from local maps

You do not need exact engineering measurements to make useful notes. What matters is seeing the general direction of water movement.

Mark runoff, infiltration, and collection

On your map, show:

  • Roof runoff points
  • Drainage paths
  • Low spots
  • Wet areas
  • Dry ridges or knolls
  • Places where mulch, swales, or basins might help

In permaculture, the goal is often to slow, spread, and sink water rather than move it off the property as quickly as possible. But that only works when you know where water naturally goes.

Look for soil clues

Soil tells a story. Clay-heavy soil may hold water and stay saturated. Sandy soil may drain quickly but dry out fast. Compacted soil often sends water across the surface instead of letting it soak in.

Signs to notice:

  • Bare soil after rain
  • Crusting on the surface
  • Moss in damp areas
  • Deep cracks in dry areas
  • Plants that thrive or decline without clear reason

Put the Three Maps Together

Sun, wind, and water do not act separately. They overlap. The real value of site analysis comes when you compare the maps and look for patterns.

Identify microclimates

A microclimate is a small area with conditions different from the surrounding yard. For example:

  • A warm, south-facing wall may combine full sun with wind protection
  • A low corner may be shaded, damp, and still
  • A ridge may be sunny, dry, and windy
  • A courtyard may trap heat and shelter delicate plants

These small differences matter. They allow you to place each plant where it is most likely to thrive.

Match functions to conditions

Once you understand the site, think functionally:

  • Dry, sunny, windy spots: drought-tolerant herbs, native grasses, pollinator plants
  • Damp, partially shaded areas: leafy greens, moisture-loving perennials, rain garden plantings
  • Sheltered warm zones: tomatoes, peppers, espaliered fruit trees, tender vines
  • Cold pockets or frost-prone areas: hardy shrubs, mulch-heavy beds, or non-plant uses such as storage or pathways

This is where permaculture design becomes strategic rather than decorative.

A Simple Example of Mapping a Yard

Imagine a suburban backyard with a house on the north side, a fence on the west, and a slight slope toward the southeast.

  • The south side of the house gets strong afternoon sun and reflected heat.
  • The west side is exposed to prevailing winds, especially in winter.
  • The southeast corner collects runoff after rain and stays moist longer.
  • A large maple shades part of the central yard from late spring through fall.

From that site analysis, a practical design might include:

  • Herbs and heat-loving vegetables near the south wall
  • A mixed hedge on the west side to reduce wind exposure
  • A rain garden or moisture-tolerant plants in the southeast corner
  • Shade-tolerant groundcover beneath the maple
  • Paths placed to avoid wettest areas after storms

Without mapping, the same yard might receive generic garden beds placed by convenience rather than suitability. With mapping, each zone has a reason.

Tools That Make Mapping Easier

You do not need advanced equipment, but a few tools help.

Helpful basics

  • Notebook or waterproof field journal
  • Graph paper
  • Pencil and colored pencils
  • Compass or phone compass
  • Camera or phone camera
  • Measuring tape
  • Simple level
  • Stakes or flags for marking observations in the yard

Optional tools

  • Weather app with wind direction data
  • Topographic map or property survey
  • Soil test kit
  • Rain gauge

The best tools are the ones you will actually use repeatedly.

Common Mistakes to Avoid

Even a careful map can go wrong if you rush the process.

Do not rely on a single visit

A yard changes through the day and across seasons. One afternoon of observation rarely tells the whole story.

Do not ignore neighboring properties

A tall fence, a new building, or a neighbor’s tree can change sun and wind patterns in ways that are easy to overlook.

Do not assume water moves only where you can see it

Water may travel underground, pool under mulch, or run along hidden compacted paths. Watch the land after rain, not just during storms.

Do not design for average conditions only

Extreme conditions matter. Think about the hottest week, the coldest wind, and the heaviest rain. Those events often reveal the true limits of the site.

Conclusion

A successful permaculture yard begins with attention. By mapping sun, wind, and water before you plant, you create a design that reflects the actual behavior of the site rather than a guess about it. A careful sun map shows where life will flourish or struggle. A clear picture of wind exposure helps you protect sensitive areas and guide airflow. A realistic understanding of water flow reduces waste, erosion, and frustration.

When those observations are layered together, the yard starts to make sense. You can place each bed, tree, and pathway with intention. That is the quiet strength of good site analysisit turns a patch of ground into a readable system, and it gives your permaculture design a solid beginning.


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