Alternanthera Species, Alligator Weed, Alligatorweed
Alternanthera philoxeroides
| Family: | Amaranthaceae |
| Genus: | Alternanthera (al-ter-NANTH-ur-uh) (Info) |
| Species: | philoxeroides (fil-oh-zer-OY-deez) (Info) |
| Synonym: | Achyranthes philoxeroides |
| Synonym: | Alternanthera philoxerina |
| Synonym: | Telanthera philoxeroides |
Category:
Ponds and Aquatics
Water Requirements:
Very high moisture needs; suitable for bogs and water gardens
Sun Exposure:
Full Sun
Foliage:
Herbaceous
Foliage Color:
Height:
36-48 in. (90-120 cm)
Spacing:
36-48 in. (90-120 cm)
Hardiness:
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
USDA Zone 11: above 4.5 °C (40 °F)
Where to Grow:
Danger:
Bloom Color:
White/Near White
Bloom Characteristics:
Bloom Size:
Bloom Time:
Blooms repeatedly
Other details:
May be a noxious weed or invasive
Soil pH requirements:
Patent Information:
Non-patented
Propagation Methods:
By dividing rhizomes, tubers, corms or bulbs (including offsets)
From herbaceous stem cuttings
Seed Collecting:
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
Regional
This plant is said to grow outdoors in the following regions:
Deland, Florida
Port Saint Lucie, Florida
Cordele, Georgia
Gardeners' Notes:
| Rating | Content |
|---|---|
| Negative | On Nov 28, 2012, 4plantsonly from (Zone 9b) wrote: Pulls up easy ...what you don't have to wade out in water to reach...however it is so tender breaks off just as easy leaving the rest of the plant....don't plant this ....if you see it starting , remove it ...I am sure it has some use somewhere...but I guarantee you it is not useful in your ponds... |
| Negative | On May 18, 2008, Cordeledawg from Cordele, GA (Zone 8a) wrote: Horrible aquatic weed that has covered my beautiful water lilies in my pond. I am getting ready for war over this weed. Had the county agent out to help me determine how to get rid of it. He advised me to kill it with Rodeo in small patches at a time as to not deplete the oxygen in the water. I borrowed a boat and will soon start the fight. I may rake out the dying foliage, just depends if I'm physically able to do it without falling out of the boat. |
| Negative | On Nov 22, 2006, frostweed from Josephine, Arlington, TX (Zone 8a) wrote: Alligator Weed, Alligatorweed Alternanthera philoxeroides ia Naturalized in Texas and other States is considered an invasive noxious plant and is prohibited in Texas. |
| Neutral | On Apr 1, 2004, giftofthegab from sydney, A perennial herb either free floating or a creeping terrestrial. |
| Negative | On Jul 4, 2003, Terry from Murfreesboro, TN (Zone 7a) wrote: Takes up residence in disturbed wetlands, and if not eradicated, can form a thick, tangled mat up to 3 feet thick. |
