Just bought some finger lime seeds from Trade Winds this past week. Going to try as a houseplant/patio tree

Australian tree ferns: Plant possible invasive concern by Carolyn Lucas West Hawaii Today clucas@westhawaiitoday.com Wednesday, March 18, 2009 9:07 AM HST Though prized for its distinctive looks and rapid growth, the Australian tree fern is becoming an increasingly common and alarming fixture in Kona neighborhoods, according to a recent islandwide survey by the Big Island Invasive Species Committee's early detection crew. On the underside of its triangular fronds with lacy blades are millions of spores, which breezes -- as well as feral ungulates -- carry far and wide. This tree fern (Spahaeropteris or Cyathea cooperi) is already displacing native forests on Kauai, Maui and Oahu. Watersheds are also being choked. Such propagation is just beginning on the Big Island, said Page Else, spokeswoman for the Big Island Invasive Species Committee. "The tree fern crowds out our native hapuu, the mother of the forest. The soft fibers of the hapuu nurture young native seedlings of native plants like ohia and olapa," she said. "The Australian tree fern has a harder, scaled trunk which doesn't make a good home for seedlings. Consequently, the foreign plant can take over in our forests, changing the forest structure, lessening the number of native plants and decreasing the ability to capture water and provide good water quality in watersheds." It's no wonder that the Australian tree fern appears on a list of the most invasive plants in Hawaii, prepared by the Hawaii State Alien Species Coordinator and the Department of Land and Natural Resources' Division of Forestry and Wildlife. Officials urged people to not cultivate any of the listed species anywhere in Hawaii. The Big Island Invasive Species Committee recently issued an Australian tree fern alert, spreading awareness about the weed and hoping that residents will help prevent its spread. People should report tree ferns by calling the state pest hotline at 643-7378. Those who have purchased the popular ornamental but suffered buyer's remorse and now want to remove it can either snip the bud or cut down the tree fern and treat it with herbicide. "They should be aware that their tax dollars will be put to work combating the rapid growth of this plant in public watersheds as seeds spread out of their yard into other locations," Else said. Two years ago, the Kauai Watershed Alliance contracted the Nature Conservancy to coordinate a response to the invasive tree fern. Crews on foot are sent into valley uplands to remove plants at a cost of $365 per acre. Helicopters with herbicides spray in more remote, dangerous areas. The aerial spraying costs $560 per acre, Else said. James Leary, invasive weed specialist at University of Hawaii at Manoa College of Tropical College Agriculture and Human Resources, has been experimenting with an innovative way to apply herbicide selectively to Australian tree ferns by using paintball guns with a special pesticide formulation. While people may be fond of the tree ferns, a wide variety of noninvasive alternatives, including the native hapuu, can be used as ornamentals. Because each yard is different, residents can visit a nursery and talk to an expert to find the best fit. Many nurseries -- including 15 on the Big Island -- agreed not to sell the tree fern after learning its potentially detrimental impact. For more information, call the Big Island Invasive Species Committee at 933-3345.

Certainly a Banksia - but what you actually seem to have is not a seed at all, but a dead flower-head, cut before the seeds have formed. I am sure a bit of searching on the internet would find you a picture of a seedhead, for comparison. Trish

Artie What about Native Plumbago (Plumbago zeylanica). It's native here as well as in Africa, Asia and the Pacific. I've come across references to "white or blue flowers" but have only seen the white. I'd be interested to know whether there are blue versions in anyone's gardens. The plant is variable, but is more ground-cover-ish than the introduced plant. There's also: Cinnamomum oliveri - our answer to the Camphor laurel, Cinnamomum camphora. Celtis australis - surely better than Celtis sinensis. Aphananthe philippensis, Native Elm -different Generic name, but definitely in the Ulmaceae, and a truly lovely little tree. There's a native poppy, too -forget its name, but it's a little annual and an interesting shade of orange - Papaver something. Native Daffodils (Calostemma luteum and C. purpurea) are very good value, being bulbs which flower at Christmastime. They're closely related to the introduced plant (and just as poisonous. Don't let the kiddies eat them). There are plenty of native Hibiscus, including the lovely "Barambah Creek" if you can't be bothered with prickles. Native Capers - Capparis species - have lovely perfumed flowers and always come with a horde of dancing butterflies. Slow growing and prickly, though. (Good for birds, of course, especially blue-wrens, which, amazingly considering their size, love to eat the "Caper White" butterflies.) There are some very good minature versions of Callitris, the native cypress, some of which must like your area? Native orchids? There are a lot of these. Best of luck with the project. Trish