Garden Sunlight Heatmap: Choose the Best Spots for your Plants

Draw Walls (Click “Draw Wall” button and draw on map. Click “Add Wall” button to add a new wall.)

Draw: Height (Meters): Material:

Draw Roof (Click “Draw Roof” button and draw on map. Click “Add Roof” button to add a new roof.)

Draw: Height (Meters): Material:

Map (Draw Wall and Draw Roof on the map, and click “Calculate” for getting Sunlight Heatmap):

Garden Sunlight Heatmap: Choose the Best Spots for your Plants

Garden sunlight heatmap is important for building a perfect garden. Because designing a garden isn’t just about aesthetics — it’s a science of aligning nature’s rhythms with your landscape. However, one of the most critical, yet often overlooked, factors in garden planning is sunlight exposure. Different plants require varying levels of sunlight throughout the year. Without accurate sunlight mapping, shaded zones can become hotspots of poor plant growth, while overexposed areas may lead to dehydration or heat stress.

Our online tool for making Garden Sunlight Heatmap empowers you to make data-driven garden design decisions. By accounting for seasonal solar angles, wall shadows, and roofing elements, this tool simulates month-by-month sunlight intensity across your garden space. Therefore, whether you’re planning raised beds, choosing plant types, or optimizing pergola placement, the heatmap gives you the insight to build a thriving, climate-responsive garden.

How to Use the Tool

Draw Your Garden Layout: Use the interactive map to outline your garden area, including walls and roof elements. In this way, you could draw each obstruction segment precisely to capture shadow behavior.
Set Height and Material: For each drawn element, input its height and choose the material type, such as transparent roof, wooden fence. These factors influence how sunlight penetrates or is blocked.
Run the Simulation: Click the “Calculate” button to generate the monthly sunlight heatmaps. Then, the system uses geolocation-based solar radiation data and 3D shadow simulation to map light intensity across your space. Then the tool will generate sunlight heatmap for your garden on the map.
Explore Month-by-Month: After generating the result heatmap, then use the month selector to view how light patterns shift throughout the year. Morevover, this tool generates garden sunlight heatmap for different months, so you could identify zones of consistent full sun, partial shade, or deep shadow to guide planting and structure decisions.

With this tool, you move beyond guesswor and into the plant-friendly garden planning. So start designing with garden sunlight heatmap in mind.

Note:

This online “Garden Sunlight Heatmap” tool is completely FREE.
When you draw on the map, the location information is NOT sent to any server. Actually, the map and drawing data are only SAVED on your own browser. We do NOT save or keep any of your location information.