Crocrosmia generally have to be divided after a couple of years. Lucifer is one that i divide in my garden. I only leave the large healthy bulbs and replant them. You can grow the smaller ones on if you want a larger patch. Some of the newer ones need less dividing and stay more clumped. Calvor Palmateer Victoria BC Zone 7/8 Sent from my iPhone > On Oct 11, 2015, at 5:25 PM, Vivien Bouffard <vbouffard55@msn.com> wrote: > > Could someone explain crocosmias to me, please? I've been growing a common > sort, probably 'Lucifer', in my Z6 garden for some years. My patch has been > exceeding its allotted real estate and at the same time seems to be blooming > less, so I dug the whole thing up today. There were hundreds and hundreds > of corms of all sizes and lots of sturdy offshoots extending from the corms > and making new corms. > > > > So my questions are: 1. How big/old does a corm need to be before it > blooms? 2. Do corms die after a season or do they persist and get larger? > 3. I found some corms stacked up on each other and understand that that is > a typical pattern. Is there something about this arrangement that makes > them more likely to bloom than large single corms or is blooming just a > function of the corm's being x years old/sufficiently large? When they're > vertically stacked like that, does only the top one make a bloom? 4. If a > corm is sending out offshoots to make new corms, is it less likely to put > energy into flowering and/or into bulking itself up? 5. Why are some corms > flat and some more pointy like a tulip? 6. Is clearing out the gazillion > little corms (some of which are clearly offshoots and some of which are > independent and may result from self-sowing) and resetting the biggest corms > the best way to encourage flowering? Does crocosmia tend to choke itself > out if left to itself? > > > > Thanks for sharing your expertise. > > > > Vivien > > Norwood, MA (Z6) > > > > > > _______________________________________________ > pbs mailing list > pbs@lists.ibiblio.org > http://pacificbulbsociety.org/list.php > http://pacificbulbsociety.org/pbswiki/