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awarded  Nice Answer
Aug
9
awarded  Notable Question
Jun
26
comment Salvage the Best Parts of a Cactus
Most wellwater is fine - and as with everything it is relative, but chronic fluorisis from drinking water famously reported in Iceland post-Laki (volc. eruption) in the late 18th C, and today is seen in the Danakil Depression Ethiopia (again volc origins). Actually Google came up with a lot of African groundwater fluorosis cases. BPA is one of those things where there's little evidence either way BUT it is the kind of chemical we don't expect to do much good, but in normal usage probably doesn't leach into the water in quantities to do harm (I wouldn't put a BPA water bottle in a microwave!)
Jun
25
comment Salvage the Best Parts of a Cactus
Agree on the cacti side of things - well draining soil is the secret - makes it harder to over water. I'm a geologist by background, and the science for fluoride in small quantities resulting in a substitution of chloride ions in apatite (the mineral in your teeth) is sound, although I question the efficacy of many dental treatments as they are applied over such a short period. Yes fluorine is nasty stuff, and large quantities of fluoride will result in fluorosis (which can occur naturally from well water btw) - but everything is poisonous in large quantities.
Jun
22
reviewed Close Starting a west facing garden in the UK
Jun
22
comment Can anyone identify this mystery plant growing in my vegetable garden?
Image links are currently broken. As such, this is not a very useful question for future readers who might have similar plants...
Jun
22
reviewed Leave Open Can anyone identify this mystery plant growing in my vegetable garden?
Jun
13
awarded  Popular Question
Jun
10
reviewed No Action Needed Do tomatoes really need support to grow?
Jun
10
reviewed No Action Needed My new allotment plot is covered in horsetail
Jun
8
awarded  Yearling
Jun
5
accepted Pollinating C.pubescens (rocoto) peppers
Jun
5
comment Pollinating C.pubescens (rocoto) peppers
Salt petre is recommended by my supplier for the hard-to-germinate types. Not sure if it makes much difference, but at least it gives some K & NO3 for when the seeds germinate. I had the grow lamps arranged so that a lower set of lamps acted as a heat pad for the main tray (I only had one try this time).
Jun
5
comment Pollinating C.pubescens (rocoto) peppers
Thanks - I'll start pollinating this weekend! I did notice that the petals didn't seem to open as much as most Capsicum and wondered if this was a problem. I have seen dead flowers, so they're definitely maturing and not pollinating.
Jun
5
asked Pollinating C.pubescens (rocoto) peppers
May
19
awarded  Notable Question
May
2
awarded  Notable Question
Mar
25
comment How can I save my Venus Fly Trap after being watered with tap water?
Tap water is usually bad for carnivorous plants. You should really used deionised (eg. from a reverse osmosis unit) or distilled water. The problem is with the various dissolved salts found in most tap waters. If the water is from an untreated well with acidic groundwater, you might be okay (the vast majority of people are not!)
Mar
25
comment How can I save my Venus Fly Trap after being watered with tap water?
What are the symptoms?
Mar
5
comment Why do small fruit fall off chilli plants?
I think I may have seen this with other varieties too, but never had any confirmation. Could also be stress as @bamboo describes, too.