Most of us view our gardens as a source of personal pleasure—a place for flowers, fruit, or relaxation. But have you ever considered your garden as a vital part of the local ecosystem? In a recent Red Barn Event, Ted Alway shared how "Habitat Gardening" can bridge the gap between our residential landscapes and the natural world.
Why Native Plants Matter
In the United States, there are over 135 million acres of residential landscapes. When we fill these spaces with ornamental plants from across the globe, we create "biological deserts." Native plants, however, are the foundation of our local food webs. They have co-evolved with native fauna to capture the sun's energy and share it with the rest of the ecosystem.
The Power of the Caterpillar
If you want to support birds, you need to support caterpillars. Ted highlighted that caterpillars are the "premier package of protein and fats" for wildlife.
- A Staggering Statistic: A single pair of chickadees must find between 6,000 and 9,000 caterpillars to fledge a single nest of chicks.
- The Problem with Ornamentals: Native insects often don’t recognize non-native plants (like those from China or Europe) as food, meaning these gardens can't sustain the bird populations we love.
Supporting Our Native Bees
Washington State is home to over 600 species of native bees. Unlike honeybees (which are generalists), many native bees are specialists, relying on the specific pollen chemistry of native plants to rear their young.
Choosing "Keystone" Plants
If you have limited space, Ted recommends focusing on Keystone Plants—species that provide a disproportionate benefit to the ecosystem:
- For Caterpillars: Native trees like Cottonwood, Aspen, Alder, and Chokecherry are powerhouses.
- For Specialist Bees: Willows (for early spring) and Rabbitbrush (for late fall) are essential.
- Herbaceous Stars: Sunflowers and Goldenrods support more specialist bees and caterpillars than almost any other perennials.
Simple Steps for Your Habitat Garden
- Plant in Groups: Instead of one lone flower, plant three to five of the same species to make it easier for pollinators to find.
- Leave the Leaves: Many beneficial insects overwinter in leaf litter and hollow stems. Wait until late spring to clean up your garden.
- Reduce Turf Grass: Lawns are often carbon emitters and offer little to no habitat. Consider replacing unused lawn with native bunchgrasses or wildflowers.
- Avoid "Native-ars": Be cautious of cultivars bred for double flowers or purple foliage; these changes can make the plant unrecognizable or inaccessible to insects.
Small Changes, Big Impact
Whether you live in a city center or near the wildlands, adding native plants makes a difference. Ted shared that even in urban areas, insects use "hopscotch" maneuvers to find native patches, detecting the phytochemicals in the air from miles away.
Your garden can be more than just a pretty view—it can be a sanctuary.
Watch the full presentation here: Habitat Gardening - Red Barn EventHabitat Gardening - Red Barn EventHabitat Gardening - Red Barn Event
