On the contrary: I have seen large spreads of double Oxalis pes-caprae in Portugal, for example, spreading freely by bulbils and being just as much an invasive nuisance as the single form. John Grimshaw Visit John Grimshaw's Garden Diary http://johngrimshawsgardendiary.blogspot.com/ Dr John M. Grimshaw Sycamore Cottage Colesbourne Cheltenham Gloucestershire GL53 9NP Tel. 01242 870567 -----Original Message----- From: pbs-bounces@lists.ibiblio.org [mailto:pbs-bounces@lists.ibiblio.org] On Behalf Of contact Subject: Re: [pbs] Oxalis pes-capraea flore plena Hello, We made this form commercially available as it has not the same invasive tendency as the normal O. pes-caprae. See http://bulbargence.com/m_catalogue/article.php/… e=135&val=&lg=en Kind greetings Lauw de Jager