Search found 17178 matches

by iann
Fri Apr 22, 2022 1:42 pm
Forum: CactiGuide.com Comments
Topic: Mammillaria perezdelarosae ssp andersoniana in the guide
Replies: 3
Views: 1830

Re: Mammillaria perezdelarosae ssp andersoniana in the guide

The ending -iana is an adjectival form that takes the gender from the genus even if it originates from a man's name. A person name can also be used in genitive form, in which case it takes the gender of the person rather than the genus, and would be andersonii. Either can be used, but in this case i...
by iann
Thu Apr 21, 2022 9:00 pm
Forum: Succulent Growing Help
Topic: Lithops Optica Rubra growing advice
Replies: 7
Views: 513

Re: Lithops Optica Rubra growing advice

Each of the three looks like a single plant. As they grow, they develop multiple heads on the same plant. One of them now appears to have three heads, might be more when the new leaves come through. Watering once a year would be a bit cruel although many Lithops would survive it for a year or two. M...
by iann
Thu Apr 21, 2022 3:07 pm
Forum: CactiGuide.com Comments
Topic: Mammillaria perezdelarosae ssp andersoniana in the guide
Replies: 3
Views: 1830

Mammillaria perezdelarosae ssp andersoniana in the guide

At https://cactiguide.com/cactus/?genus=Ma ... zdelarosae, the straight-spined subspecies is referred to as ssp andersonii. I'm fairly sure this is wrong and it should be ssp andersoniana.
by iann
Wed Feb 22, 2017 9:20 pm
Forum: Succulent Growing Help
Topic: Haworthia dormancy
Replies: 13
Views: 5281

Re: Haworthia dormancy

Most Haworthias are going to be tricky in the tropics. There are some summer-growing species, but even they are really set up for hot days and cool nights.
by iann
Wed Feb 22, 2017 9:19 pm
Forum: Succulent Growing Help
Topic: Problems with Nelii
Replies: 19
Views: 5898

Re: Problems with Nelii

It is very hard to tell whether these are rotting or just preparing to lose the old leaves. If it is rotting, it will go pretty fast. You can save the leaves inside, maybe, by cutting back and re-rooting. Whenever I've tried it, they are very slow. The real answer is sunlight. Oh and "pretty dr...
by iann
Mon Jan 02, 2017 8:26 pm
Forum: Grown From Seed
Topic: Windowsill seed raising - Small Cacti and Mesembs
Replies: 66
Views: 21368

Re: Windowsill seed raising - Small Cacti and Mesembs

What is that monster in with the Conophytums? A Delosperma? Something even bigger? Might be an idea to evict it pretty quickly. And plant up separately of course :)
by iann
Mon Jan 02, 2017 8:04 pm
Forum: Grown From Seed
Topic: Windowsill seed raising - Small Cacti and Mesembs
Replies: 66
Views: 21368

Re: Windowsill seed raising - Small Cacti and Mesembs

You can use standard domestic LED bulbs for lighting small areas or starting seeds, just as you can with the twisty tube CFLs or fluorescent tubes, but you won't get one of the main benefits of LEDs which is being highly directional. You're probably going to find CFLs pretty hard to find now or soon...
by iann
Thu Dec 29, 2016 9:17 pm
Forum: General-Succulents
Topic: Propagation of Frilly Echeverias from the Flower Stem
Replies: 4
Views: 3776

Re: Propagation of Frilly Echeverias from the Flower Stem

You can propagate Echeverias from any leaf. The trick is getting it to root before the leaf dies since they may not be particularly big or particularly succulent.
by iann
Sat Dec 24, 2016 9:55 pm
Forum: Grown From Seed
Topic: Windowsill seed raising - Small Cacti and Mesembs
Replies: 66
Views: 21368

Re: Windowsill seed raising - Small Cacti and Mesembs

That's where LEDs have an advantage, they produce light with very little heat. Everyone keeps saying that but it isn't true. LEDs produce more or less the same heat as any other (non-incandescent) light source, comparable to fluorescent tubes, although better than the little compact fluorescents th...
by iann
Sat Dec 24, 2016 9:37 pm
Forum: Grown From Seed
Topic: Greenknight 2016
Replies: 17
Views: 4564

Re: Greenknight 2016

I doubt that Fenestraria of any age died for lack of ones day's misting. Did they overheat? Rot? M. herrerae are supposed to be touchy, but I can't kill them for trying. I'm leaving some out in an unheated greenhouse this year. They're not supposed to be frost-hardy. So far they're doing great, but ...
by iann
Sat Dec 24, 2016 9:32 pm
Forum: Grown From Seed
Topic: Baby carrots... er, Ariocarpus
Replies: 4
Views: 1931

Re: Baby carrots... er, Ariocarpus

Another few months and they'll be breaking out of the pot :)
by iann
Thu Dec 22, 2016 7:43 pm
Forum: General
Topic: My cactus enjoying the sun
Replies: 7
Views: 2212

Re: My cactus enjoying the sun

What is the white splotched one in the middle? Another Gymno?
by iann
Thu Dec 22, 2016 7:42 pm
Forum: Grown From Seed
Topic: Advices request for sowing some (winter active) species
Replies: 32
Views: 10070

Re: Advices request for sowing some (winter active) species

So I finally got round to looking up São Carlos climate averages. Oh dear. I don't know how things like Monilaria are going to cope as adults. When they are active they aren't very succulent at all. They wilt badly after a few days in dry soil. Or any days at all if it is sunny! Warm nights are stre...
by iann
Thu Dec 22, 2016 3:06 pm
Forum: Grown From Seed
Topic: Windowsill seed raising - Small Cacti and Mesembs
Replies: 66
Views: 21368

Re: Windowsill seed raising - Small Cacti and Mesembs

Like all mesembs, you can just chop the stems near the base of the leaves and re-root as a cutting. Some of them seem to take a long time to root, others very quick. It might be that they root very quickly, but only at the right time. For example, Conophytum cuttings root very easily in late autumn....
by iann
Thu Dec 22, 2016 3:03 pm
Forum: Grown From Seed
Topic: Advices request for sowing some (winter active) species
Replies: 32
Views: 10070

Re: Advices request for sowing some (winter active) species

Hot summers are not much of an issue for obligate winter growers. The ones that become dry and dormant can tolerate quite extreme temperatures and zero water. Most of them are quite thirsty in winter. A Monilaria that doesn't collapse into dried noodles in summer sounds very strange. Maybe a seedlin...