Search found 1920 matches

by Ali Baba
Sun Nov 12, 2023 6:21 pm
Forum: The Cactus & Succulent Plant Forum
Topic: The Autumn Cactus and Succulent Show at RHS Harlow Carr on 23 September 2023 - the photographs thread not the politics
Replies: 64
Views: 6152

Re: The Autumn Cactus and Succulent Show at RHS Harlow Carr on 23 September 2023 - the photographs thread not the politi

Phil_SK wrote: Sun Nov 12, 2023 6:02 pm Do you not think it's the same plant, just from the other side?
Judging by the surrounding plants I’d say that you are correct!
by Ali Baba
Sun Oct 29, 2023 10:38 am
Forum: The Cactus & Succulent Plant Forum
Topic: Is anyone using an electric dehumidifier in their greenhouse at this time of year?
Replies: 18
Views: 1419

Re: Is anyone using an electric dehumidifier in their greenhouse at this time of year?

I grew all my cacti in a cold frame for many years before I got a greenhouse. I had the frame on a concrete base and the frame was completely watertight so no rain could get in. It worked very well but I found I had to time the last watering of the season to August bank holiday to ensure there was e...
by Ali Baba
Sat Oct 28, 2023 4:12 pm
Forum: The Cactus & Succulent Plant Forum
Topic: Is anyone using an electric dehumidifier in their greenhouse at this time of year?
Replies: 18
Views: 1419

Re: Is anyone using an electric dehumidifier in their greenhouse at this time of year?

I’ve got a 3kw Simply Control fan heater with the fan on continuously all year round and a cylindrical fan hanging in the roof, plus in the winter I’ve an old Parwin heater as an extra fan at ground level which just works as a fan. In a 10x8 greenhouse
by Ali Baba
Sat Oct 28, 2023 9:44 am
Forum: The Cactus & Succulent Plant Forum
Topic: Is anyone using an electric dehumidifier in their greenhouse at this time of year?
Replies: 18
Views: 1419

Re: Is anyone using an electric dehumidifier in their greenhouse at this time of year?

The humidity in my greenhouse currently is 94% compared with 96% outside presumably due to the higher temperature inside the greenhouse, so opening the vents would seem to be counterproductive. In any case leaving the vents shut will help raise the daytime temperature which will allow the humidity t...
by Ali Baba
Mon Sep 25, 2023 3:33 pm
Forum: The Cactus & Succulent Plant Forum
Topic: Poor roots on a large Aylostera
Replies: 22
Views: 1254

Re: Poor roots on a large Aylostera

To be honest I split my rebutias sulcorebutias etc once they get too large, I find they flower better that way, there seems to be a diminishing return in number of flowers once they get beyond a 7 inch pot. Plus it makes more room in the greenhouse
by Ali Baba
Sat Sep 23, 2023 6:42 pm
Forum: The Cactus & Succulent Plant Forum
Topic: Parwin heater thermostat
Replies: 7
Views: 535

Re: Parwin heater thermostat

Thanks Ralph I’ll have a go at drawing it…
by Ali Baba
Sat Sep 23, 2023 1:58 pm
Forum: The Cactus & Succulent Plant Forum
Topic: Parwin heater thermostat
Replies: 7
Views: 535

Re: Parwin heater thermostat

This is the new thermostat. The old one presumably bypassed the heating element so that the fan can run with or without the heat being on. I’m assuming this one will turn both heat and fan off if the desired temperature is reached
by Ali Baba
Fri Sep 22, 2023 10:37 pm
Forum: The Cactus & Succulent Plant Forum
Topic: Parwin heater thermostat
Replies: 7
Views: 535

Parwin heater thermostat

So a few years ago the thermostat failed on my Parwin 3kw heater. Parwin sent me a replacement but not the same as the original black one (apparently no longer manufactured). As I had a spare 2kw heater at that point I just replaced the 3kw thermostat with the old design thermostat from the 2kw heat...
by Ali Baba
Thu Sep 21, 2023 2:09 pm
Forum: The Cactus & Succulent Plant Forum
Topic: Cactus mites
Replies: 39
Views: 3635

Re: Cactus mites

That’s definitely Brevipalpus you can clearly see the red oval eggs in your photo. I’ve used sprays based on rapeseed oil on orchids and it doesn’t leave a sticky residue. By the way if you can see that many mites that’s not the start of an infestation, they will have been there for quite a while as...
by Ali Baba
Thu Sep 14, 2023 5:51 pm
Forum: The Cactus & Succulent Plant Forum
Topic: Aporocactus flagelliformis cultivation
Replies: 55
Views: 7368

Re: Aporocactus flagelliformis cultivation

Thanks Mike. How hardy is it, do you know? I don't have any Disocactus as they don't tend to be very hardy, if I recall correctly..... Just to add to Mike’s reply, Disocactus speciosus is quite tolerant of low temperatures, as is Disocactus phyllanthoides although the latter will get brown spots if...