Sphaeropteris cooperi
Scaly Tree Fern
Introduced and now reproducing on its own in the wild.
Sphaeropteris cooperi, synonym Cyathea cooperi, also known as lacy tree fern, scaly tree fern, or Cooper's tree fern, is a tree fern native to Australia, in New South Wales and Queensland.
Read more on Wikipedia →Only 0 phenology-annotated observations exist for this species in Hawaiʻi — too few to describe a season. No window is inferred.
Controlling Sphaeropteris cooperi
Best reported: cut with none — 2 reports from TNC Kauai, OANRP.
5.0cutnone
- 5successful. Recommended method · TNC Kauai
Use machete to chop up the growing tip (apical meristem). Works good. Just need to make sure that new workers chop up enough of the growing tip to kill the plant. We give a quick anatomy lesson to new workers so they understand what not to do: 1) not chop it up enough or 2) cut down a tree fern trunk without killing the growing tip.
- 5successful. Recommended method · OANRP · observed · 2016-02-23
no herbicide
5.0foliar1% Polaris AC Complete in H20ImazapyrG2
- 5successful. Recommended method · TNC Kauai · observed · 2021-04-22
Used in Stinger aerial application. 1100ml of the mix was used per tree fern, applied to the apical meristem.
Ratings are the reporting organisation’s own, on a 5-point scale. Always follow the product label — the label is the law. See these 3 rows in the full table








