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FAQs on Oxygenating Grasses for Ponds

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Egeria densa, "Anacharis" cut and bunched for shipping, Florida.

Aquatic Gardens

Ponds, Streams, Waterfalls & Fountains:
Volume 1. Design & Construction
Volume 2. Maintenance, Stocking, Examples

V. 1 Print and eBook on Amazon
V. 2 Print and eBook on Amazon 

by Robert (Bob) Fenner
Can you help me identify these there plants... Transplanting live plant mat. across State lines...  8/21/07 Dear Wet Web Media, <George> Attached are three plants - are they oxygenators? <Mmm, yes...> They are from Mosquito Lake in Ohio - Would they be ok to put in a backyard pond in Los Angeles? <... I STRONGLY recommend that you NOT use these plants in this setting... IF you have moved them from Ohio, please place in plastic bags, place in a freezer and toss out on trash day... pour the water they are in onto your lawn... REAL troubles in such transplantations... bits getting loose, moved about by waterfowl et al...> The feathery looking one was growing to about 3 feet tall in the lake. The other two appear more like grasses. Regards, George <There are more suitable species available locally... that live in hard, alkaline, warmer water... Please read here: http://www.wetwebmedia.com/PondSubWebIndex/oxgrasses.htm and the linked files above. Bob Fenner>

Hydrilla Seeds Dear Sir: I am looking for Hydrilla seed for a pond, do you know where I can purchase some?   Thank You Dion Young <No... and as far as I'm concerned this plant should be restricted (if it isn't most everywhere) for distribution/sale period. Please look into this genus and its destructive accidental spread... Not easy to control or eradicate... gets loose on gear, waterfowl... PLEASE look into other species... perhaps Myriophyllum, Egeria... Many more listed on www.WetWebMedia.com . Bob Fenner>
Re: Hydrilla
Dear Sir, Thank you for your response and information.  It appears that Hydrilla will choke the pond.  Not good.  I have read your article on Elodea and Anacharis.  They appear to be similar to Hydrilla.  Are they as hard to control.  And can I purchase seeds for this plant. <Not as difficult to control, nor as invasive, but I would not start them from seed. Look for suppliers to buy a few "sprigs", "bunches" of these plants when the water warms in your area, or grow them for now indoors, in an aquarium. Bob Fenner> Thank you Dion Young

Anacharis, elodea and Egeria Your article on the website is informative, but could you tell me what are the legal issues regarding sale and use of these plants for outdoor use? <There are, as far as I'm aware, no such restrictions on the sale of freshwater plants in the ornamental trade. There are some laws on the books concerning Caulerpa algae... and some fin-fish... vis a vis they're potential harm on release to the wild> The similarity of elodea to Hydrilla scares me, knowing what an environmental problem Hydrilla has become. FYI, I am a landscape architect in Louisiana. <These two genera are VERY similar indeed. As usual, I proscribe that nothing be released to the wild... terrestrial plants included. Bob Fenner> Margaret Waring

Aquatic Gardens

Ponds, Streams, Waterfalls & Fountains:
Volume 1. Design & Construction
Volume 2. Maintenance, Stocking, Examples

V. 1 Print and eBook on Amazon
V. 2 Print and eBook on Amazon 

by Robert (Bob) Fenner
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