TREEURBAN
Urban trees, green spaces, and the art of city gardening.
From frost dates to fertilizer rates, TreeUrban pairs free hands-on calculators with practical growing guides and a richly illustrated museum of trees and urban greenery. Dig in, plan your beds, and grow with confidence.
Garden Tools & Calculators
Free planners for every stage of the season — watering, planting, composting, soil, and feeding.
Garden Watering Calculator
Determine exact water requirements for your plants based on soil type, climate, season, and rainfall
Plant Companion Calculator
Discover beneficial plant combinations, avoid harmful pairings, and score your garden's compatibility
Seed Starting Date Calculator
Calculate indoor and outdoor planting dates from your last frost date, with succession scheduling
Compost Ratio Calculator
Balance the carbon-to-nitrogen ratio of your pile and troubleshoot common composting problems
Garden Bed Soil Mix Calculator
Calculate exact soil, compost, and amendment quantities for raised beds and container gardens
Fertilizer Application Calculator
Calculate precise NPK application rates for organic and synthetic fertilizers by plant and area
Trees & Urban Greenery
Wander an immersive museum of trees and great urban green spaces — shade & street trees, ornamental & flowering trees, conifers, and tropical trees & palms, alongside the world’s finest urban parks, botanical gardens, and arboreta, each with its own gallery so you can trace the histories and ideas that connect them.
Tour the museum →From the Journal
Fresh growing guides, plant-care tips, and seasonal know-how.
Advanced Community Gardens Techniques and Methods
The Living Heartbeat of Urban Spaces: How Community Gardens Transform Cities into Thriving Ecosystems In an era where concrete jungles dominate our landscapes, community gardens emerge as vibrant sanctuaries that…
The Lush Canopy of Urban Greenery: Cultivating Nature Within City Walls
The Lush Canopy of Urban Greenery: Cultivating Nature Within City Walls In an era where concrete jungles dominate our skylines, the concept of urban greenery has emerged as both a…
The Artful Fusion of Nature and Urban Life: Exploring Landscape Architecture
The Artful Fusion of Nature and Urban Life: Exploring Landscape Architecture Landscape architecture is an interdisciplinary field that merges artistry with environmental science to design outdoor spaces that enhance both…
The Vital Pulse of Urban Greenery: A Deep Dive into Tree Health Management
The Vital Pulse of Urban Greenery: A Deep Dive into Tree Health Management In the heart of our bustling cities, trees stand as silent sentinels, offering shade, oxygen, and an…
The Lifeblood of Urban Living: How Green Spaces Transform Cities Into Thriving Communities
The Lifeblood of Urban Living: How Green Spaces Transform Cities Into Thriving Communities In an era where concrete jungles dominate our skylines, green spaces stand as vital sanctuaries that breathe…
The Green Pulse of the City: How Urban Parks Transform Modern Living Spaces
The Green Pulse of the City: How Urban Parks Transform Modern Living Spaces In the heart of bustling metropolises where concrete jungles dominate the skyline, urban parks stand out as…
Keep Learning
Plant families, pests, techniques, and a plain-language gardening glossary — everything you need to dig deeper.
Visit the Learn hub →