Aquatic & Bog Plants
Hardy water lilies, fairy moss, rushes, cattails, and bog species grown in our own pond system in Milwaukie, Oregon. Plants for backyard ponds, rain gardens, bioswales, and organic growing.
Pond & Water Garden
Plants for Ponds & Water Features
Floating, submerged, and marginal species for backyard ponds, container water gardens, and koi ponds. All grown in our own pond system in the Willamette Valley.
Cold-hardy water lilies suited for Pacific Northwest ponds. Overwinter outdoors in USDA zones 4–10. Provide surface shade that helps control algae and shelters fish.
Free-floating rosettes that provide natural filtration and surface cover. Absorbs excess nutrients, competes with algae, and offers shelter for pond life. Reproduces readily by offsets.
Tiny floating fern that forms a dense, velvety mat. Suppresses mosquito breeding, outcompetes algae, and fixes atmospheric nitrogen. One of the fastest-growing plants on earth.
Rain Garden & Bioswale
Plants for Stormwater & Green Infrastructure
Native and adapted wetland species for rain gardens, bioswales, riparian buffers, and stormwater installations. Locally sourced Willamette Valley stock.
Why Local Ecotype Matters
Our rushes, cattails, and bog species grow in our own pond and wetland areas in Milwaukie, Oregon. That makes them Willamette Valley ecotype material — plants adapted to local soil, hydrology, and climate conditions over generations.
For rain garden and bioswale projects, locally sourced stock establishes faster, tolerates local conditions better, and supports native pollinator and wildlife communities. Many restoration specifications and municipal stormwater programs in the Portland metro area require or prefer regionally sourced plant material.
Whether you're a homeowner building a rain garden, a landscaper installing bioswales, or a firm working on habitat restoration, our plants come from the same watershed they'll be planted in.
The most commonly specified rush for rain gardens and bioswales in the Pacific Northwest. Tolerates seasonal flooding, filters runoff, and provides year-round structure. Deep root systems stabilize soil and absorb nutrients.
A graceful, blue-green rush native to the West Coast. More upright and architectural than soft rush. Excellent for residential rain gardens where visual appeal matters as much as function. Drought-tolerant once established.
The iconic PNW wetland species. Vigorous filtration capacity makes cattails a workhorse for constructed wetlands and large bioswales. Provides critical wildlife habitat — nesting sites, cover, and food for birds and amphibians.
Featured Plant
Azolla — Living Biofertilizer
Fairy moss isn't just a pond plant. It's a nitrogen-fixing aquatic fern with a thousand-year history in sustainable agriculture — and it grows for free in our pond.
Nature's Nitrogen Factory
Azolla hosts a symbiotic cyanobacterium (Anabaena azollae) inside its leaves that fixes atmospheric nitrogen — converting N₂ gas directly into plant-available fertilizer. This makes Azolla one of the only plants that can fertilize itself and the soil around it without any synthetic inputs.
Asian rice farmers have used Azolla as a green manure for over a thousand years, growing it on flooded paddies and then incorporating it into the soil before planting. Modern permaculture and regenerative agriculture communities are rediscovering it as a compost activator, mulch, and direct soil amendment.
We harvest Azolla from our own pond system in Milwaukie and sell it fresh for both pond and garden use.
Two Products, One Plant
For ponds: Azolla forms a dense floating mat that blocks light algae needs to grow, suppresses mosquito breeding by covering the water surface, and adds a rich green-to-red texture that changes color with the seasons.
For gardens: Fresh or dried Azolla works as a nitrogen-rich compost activator, direct mulch, or soil amendment. Mix it into compost piles to accelerate decomposition, side-dress around vegetables, or till it into garden beds as a green manure. It's especially effective in organic systems where synthetic nitrogen isn't an option.
Because Azolla doubles its biomass every 2–3 days under good conditions, a small starter portion in a pond or tub produces a continuous, self-renewing supply of biofertilizer all season long.
Garden Uses
Our Approach
Grown in Our Own Pond System
Every aquatic plant we sell comes from the pond and wetland areas on our property in Milwaukie, Oregon — not imported from a wholesaler.
From Our Pond to Yours
Our aquatic plants grow in a large, established pond system on our property in the Willamette Valley. This means every plant is adapted to Pacific Northwest water conditions, seasonal temperature cycles, and regional water chemistry before it arrives at your pond or garden.
Because we propagate from our own stock, we control the growing conditions from start to finish. No pesticides, no chemical treatments. Plants are harvested fresh and shipped or delivered directly — not sitting in a warehouse or garden center for weeks before reaching you.
We're a specialty nursery and tissue culture lab, not a big-box retailer. That means personal service, honest growing advice, and plants that are actually suited to where you live.
What Sets Us Apart
Get in Touch
Questions & Orders
Interested in aquatic plants for your pond, rain garden, or growing operation? Email us for current availability, pricing, and bulk orders.
sales@seaspores.orgMilwaukie, Oregon — Local delivery in the Pacific Northwest plus nationwide shipping