Thalia dealbata is a vigorous tropicalesque aquatic plant. thalia (Thalia dealbata) -- not native to Maryland, but native elsewhere in the south . Another closely related introduced species, powdery thalia (Thalia dealbata), has also recently become naturalised in south-eastern Queensland. Provided by Smithsonian Institution, Richard A. Howard Photograph Collection . Thalia dealbata. Grows to 3 feet tall and does best in full sun to part shade in moist soil or shallow water at the roots. Texas alternatives might include Square-stem spikerush (Eleocharis quadrangulata), Sugarcane plumegrass (Saccharum giganteum), ans Powdery thalia (Thalia dealbata). Dwarf Thalia Dealbata is a nice complement to any water garden setting. Thalia dealbata (Alligator flag) is just the thing to have if there are alligators about! Undo. Thalia dealbata is grown as an ornamental in tropical and temperate gardens and is hardy as far north as Philadelphia, Pennsylvania, and Vancouver, British Columbia when the rhizome is submersed during winter. A weed risk assessment showed that Thalia dealbata had invasive potential and was able to grow in most areas in China (Chen & Ding 2011, Wang & al. In suitable circumstances this species may grow very vigorously. Family Marantaceae . As if that wasn't enough, the lovely architectural oar shaped leaves and mauve twisted flowers give a welcome burst of colour and vitality at the end of the season. Native plant species that are adapted to local conditions should be used in restoration projects and as a substitute for giant reed in landscapes and erosion control practices. Pomegranate is only marginally hardy here, so it's unlikely to be invasive. Thank you for reporting this comment. Cui et al. A moderate risk was estimated for the British Isles as well (Thomas 2010). marymd7. 2016). It can be planted in the pond, swamp pot or the bog garden. Unlike Thalia (Thalia geniculata), this species has tightly-bunched upright flower clusters. (2016) also pointed out that the yield of biochar derived from Thalia dealbata has a clear advantage over traditional raw materials (orange peel, cottonseed hulls and corn stover) when the pyrolysis temperature is 500°C (Chen and Chen, 2009; Mullen et al., 2010; Uchimiya et al., 2011). Other References The pot shown in the picture below has frozen solid on several occasions. The tall strongly architectural stiff leaf and flower stems waggle about as they swim through and warn you that they are coming. It comes with the added bonus that it is hardy enough to be left out all year in Zone 9 (at least). This might partially explain why the plants are autogamous in spite of the elaborate floral mechanism. 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