And in San Francisco, the earliest risers this year are bulbs that were purchased from warm/hot storage, and more or less immediately started growing in cool humid SF. Of the ones with at least one growing cycle in SF, bifurca, simplex, massoniana, some purpurea (regular form), Ken Aslet, are showing growth (bifurca is the only one with a nice clump of leaves). One plant of versicolor skipped dormancy entirely. When I had purpurea in the ground, they started poking up late August, so I started watering then...this spring the gophers ate each and every purpurea in the ground along with tetraphylla, obtusa, and a late lingering boweii (which they ate through the pot and eradicated, leaving clean soil), brasiliensis, nidulans, depressa seem not to be as palatable to them. The conditions here are not warm and dry (few days above 70F/20C, most under 65F/18C, nights to 50F/10C; most days with condensing fog, very few with sun)...lifted bulbs are stored "dry" (70-80% humidity) in the garage (I probably should have them inside where the heater is running). Heh, among the summer growers, unsurprisingly, tuberosa is going gangbusters...I have a messy low hedge in planters. Not grown for floriferousness, although they do have a very pretty golden flower. It remains to be seen how they will produce On Tue, Aug 10, 2021 at 10:37 PM Mary Sue Ittner via pbs < pbs@lists.pacificbulbsociety.net> wrote: > I live in coastal Northern California where temperatures are not as > extreme so am not sure if my experience applies. I usually unpot my > Oxalis so I can share extras with the BX and store them in paper bags > and pot them up as I see signs of life. Therefore I usually end up > repotting in July, August, and September depending on the species. The > ones that flower in the fall start growing before the winter flowering > ones. So far I've potted about 10 species. Most of them were already > showing signs of life, but none of them are up yet. Potting can be > tricky since you can't always tell if what you see is the root or the > shoot. Sometimes even when I pot them on their side they have grown out > the slits in the bottom of the pots. This has happened more than once > with O. purpurea as shown in the photo. Even though the fall flowering > ones are flowering in the hottest part of the year for us (September, > October) that hasn't seemed to be a problem, but then we usually don't > have as many hot days in a row as Sacramento. Of the ones you mentioned > O. bowiei is usually the first to show green after repotting, often in > August, sometimes September. O. purpurea is later, September or October > and when I grew O. versicolor still later. Of the ones I grow Oxalis > obtusa and O. compressa are the last ones I repot. Even if I repot them > in late August, they may not come up until October or November. > > Mary Sue > > > > I have read that the South African oxalis bloom best if watering > commences in August, but no specifics about when in August. Also wanted to > know how temperature relates to the timing. Here in the Sacramento > California area it is supposed to be in the hundreds for several days this > week, and I am sure these won’t be the last hundred degree days. > -------------- next part -------------- > A non-text attachment was scrubbed... > Name: Oxalis_purpurea_white_msi_2017.jpg > Type: image/jpeg > Size: 245877 bytes > Desc: not available > URL: < > http://lists.pacificbulbsociety.net/pipermail/pbs/… > > > _______________________________________________ > pbs mailing list > pbs@lists.pacificbulbsociety.net > http://lists.pacificbulbsociety.net/cgi-bin/… > Unsubscribe: <mailto:pbs-unsubscribe@lists.pacificbulbsociety.net> > _______________________________________________ pbs mailing list pbs@lists.pacificbulbsociety.net http://lists.pacificbulbsociety.net/cgi-bin/… Unsubscribe: <mailto:pbs-unsubscribe@lists.pacificbulbsociety.net>
