AquaHorizon
Giant Duckweed Plant Spirodela Polyrhiza
Giant Duckweed Plant Spirodela Polyrhiza
Giant Duckweed Plant (Spirodela polyrhiza) is a fast-growing floating plant with larger, round leaves compared with common duckweed. Its bright green fronds form a dense mat on the water’s surface, providing natural shade and helping reduce algae growth by limiting light penetration. Easy to grow in still or slow-moving water, it quickly absorbs excess nutrients to improve water quality.
This plant is well suited for ponds and aquariums, and it is fish- and shrimp-safe, though regular thinning may be needed to prevent overcrowding. It thrives with low to medium light and does not require added CO2, while its rapid growth enables quick surface coverage and nutrient uptake.
📋 Product summary:
- Scientific name: Spirodela polyrhiza
- Appearance: fast-growing floating plant with larger, round leaves; bright green fronds form a dense mat
- Water quality: quickly absorbs excess nutrients and helps reduce algae by shading the water surface
- Growing conditions: thrives in still or slow-moving water
- Care basics: CO2 not required; lighting is low to medium
- Safety: fish- and shrimp-safe; may require regular thinning to prevent overcrowding
- Best uses: suitable for ponds and aquariums; floats on the water surface
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📦 Nationwide shipping & returns
📦 Nationwide shipping & returns
NATIONWIDE SHIPPING:
Some free shipping products may be limited to the lower 48 states, as indicated by our shipping estimator tools and checkout cart. Outdoor living, home, and garden items ship nationwide. Standard shipping fees are confirmed at checkout based on your address and provider selection. Free shipping items incur zero fees at checkout. Tracking details are emailed instantly upon order fulfillment.
NATIONWIDE SHIPPING RETURNS: 30 day returns.
We accept returns of unused products that are defective or not defective. Your return must be processed within 30 days of the date of purchase. We do not process exchanges. We will provide a shipping label by email, you are responsible for bringing the return to the shipping provider.
FREIGHT PRODUCT RETURNS: no returns or exchanges.
There are no returns, exchanges or refunds for products delivered via freight. REFUNDS: The cost of the return shipping and a 6% credit card processing/restocking fee will be deducted from your refund amount. The refund balance will be distributed to you once the returned product is received and processed.
NATIONWIDE PRODUCT REFUNDS:
The cost of the return shipping and a 6% credit card processing/restocking fee will be deducted from your refund amount. The refund balance will be distributed to you once the order is canceled and the returned product is received and processed.
Let customers speak for us
Great product and delivery
Really nice soil and awesome service
Never used because I ordered the wrong Water Filter. Mike was very helpful with the return and refund. Excellent Customer Service.
Great service. Soil is what I wanted and it off loaded exactly where I asked.
Plants are doing really well with this soil. Deep and rich looking soil, plants seem really happy. Much more cost effective (and no plastic bag waste) compared to buying bags of soil mix from a store.
The quality of the craftsmanship is superb! My formula one fan absolutely loves it!!!!
Worked like an absolute charm!
These markers were perfect for ones that we were replacing. The quality is great and they seem sturdy. The gold detail stands out and is visible from a distance. Shipping was very fast.
Good solution. The little flies have disappeared. We were sure to mist/moisten the surface of each plant once a day for 4 or 5 days, after the initial application of the nematodes, to keep the little guys mobile and able to get to any remaining eggs. So, go for it!
Plant was well packed and shipment was very fast. Received a very nice fully rooted plant in the pot!
The organic garden soil is doing very well in my garden bed. The company was professional, nice, and accommodating to my needs. They provide many types of things for your landscaping at a reasonable price.