There is a difference between naturalization and invasiveness, but I didn't think Mary Sue was going there... -Dave S. On Fri, Feb 12, 2010 at 4:34 PM, David Ehrlich <idavide@sbcglobal.net>wrote: > Dear Mary Sue, > Just because the plants can survive here doesn't make them invasive. > Allium triquetrum or A. neapolitanum occurs here, but it doesn't recur. > Amaryllis belladonna is common, but it doesn't invade. In fact I've had > trouble growing it from wild collected seed. Oxalis pes-caprae is invasive; > so is Brassica, and so is Raphanus. Daffodils survive, but don't seem to > spread (in my backyard, they don't always even do that well). I haven't > particularly noticed the others along Highway 1. > > However, I understand your point -- if a plant can survive untended, then > it can produce seeds (or worse, bulbils) which may spread and survive, and > that, after all, is the meaning of invasion. And all the plants you list > have certainly done that. But still, I can't see denying someone a pot of > paperwhites because they can survive outdoors in our mild climate. I'd save > my wrath for those species which spread rapidly and are not easily > extirpated locally or are otherwise obnoxious, like Nothoscordum gracilis, > or the aboove Oxalis and Brassicas. > > David E. > > > ________________________________ > From: Mary Sue Ittner <msittner@mcn.org> > To: Pacific Bulb Society <pbs@lists.ibiblio.org> > Sent: Thu, February 11, 2010 7:39:44 PM > Subject: Re: [pbs] old homestead bulbs > > I've been busy fixing things on the wiki lately and only today read > all the messages on this thread. In Coastal Northern California some > of the invasive plants qualify for inclusion so for them wouldn't > want to encourage anyone to plant them. Here are some bulbs I have > observed in areas continuing to grow and thrive in areas where they > are no longer tended: > Allium triquetrum, Amaryllis belladonna, Oxalis pes-caprae, Narcissus > spp. (could be hybrids, I've not tried to figure out what they are, > but you see them along Highway One), Kniphofia (also not sure if > these are species or hybrids), Zantedeschia aethiopica, some kind of > Bearded Iris, Watsonia, more than one species but definitely Watsonia > meriana var bulbillifera, Chasmanthe, again I'm not sure which species > > I've probably forgotten some. > > Mary Sue > > _______________________________________________ > pbs mailing list > pbs@lists.ibiblio.org > http://pacificbulbsociety.org/list.php > http://pacificbulbsociety.org/pbswiki/ > _______________________________________________ > pbs mailing list > pbs@lists.ibiblio.org > http://pacificbulbsociety.org/list.php > http://pacificbulbsociety.org/pbswiki/ >