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For questions about quantity of sunlight.
3
votes
Accepted
Morning vs Evening Sun?
Plants that need full shade need full shade - half a day's sun won't do them any good, especially not if they're in full sun between 11-3 pm. Others prefer what's known as 'dappled' shade, meaning th …
1
vote
What is the level of sun on the north side of this railing?
But in winter, if it faces north, there will be no sun at all, and during spring and autumn, the amount of sunlight will be reduced, so that would not count as full sun. …
10
votes
Accepted
Does soil need sunlight?
No, provided the 'garden fabric' is water and air permeable and not thick plastic. Geotextile fabrics are commonly used in areas with existing planting, usually with some kind of decorative mulch on t …
5
votes
Accepted
What is the effect of intense sunshine on vegetable plants?
Both peppers and tomatoes require as much sun and warmth as they can get, but with one caveat - if your overnight temperatures do not fall below 30 deg C, so that they have a sustained period where te …
1
vote
chemistry of ripening (tomatoes, and others)
Sunlight on tomato plants, particularly intense sunlight, means a lot of photosynthesis is going on, which means the plant can convert carbohydrates (produced by the photosynthesis) into sugars, acids … Obviously, a balance has to be struck between the fruits getting sunscald in really intense sun, whilst still ensuring maximum exposure to sunlight. …
4
votes
Accepted
"Plenty of light but no direct sunlight": reflection on walls vs shades diffused sunlight
In regard to shades over the window, that might be a bit too dark for many plants, unless the window concerned receives quite a lot of sun - the shades would filter out the sunlight but allow sufficient … UPDATE
I see you've added a photo - you should keep the shades lowered to keep the sun off, but raise them as soon as there is no sunlight coming through the window. …
2
votes
Accepted
Nerve plant bleaching & recovery
This plant does not appreciate direct sunlight - it likes a relatively bright daylight situation, but tolerates a shadier situation. You need to move it somewhere out of direct sun. …
7
votes
Accepted
Direct sunlight measuring device?
There are various devices on the market for measuring sunlight - the link below contains three or four different ones, although I can't speak for the accuracy of any of them. … the average garden or planted area, it's not quite so easy to judge if you're not there all day, observing over time, so it's probably worth getting one if you really don't know, given the amount of sunlight …
5
votes
Did my aloes sunburn?
If its winter where you are, I'd be surprised if the sun caused a problem, but if the plant was exposed all day to unexpected sunlight, it might have caused a problem, though that's difficult to detect … Assuming sunlight has caused the trouble, stand it in sunlight for increasing periods, rather than leaving it exposed all day, so give it a couple of hours of morning sun, then move it, and increase its …
1
vote
Accepted
Pelargonium rapidly losing leaves after sunburn
It'll be fine, just cut it back to healthy growth if you want to keep it indoors over winter, or if you feel uncomfortable cutting it back that far, just cut off the damaged growth. It will have been …
1
vote
Evergreen screening tree/shrub which will grow well in ~3-4 hours of sun?
Assuming you want an evergreen screen, consider using Prunus varieties - Prunus lusitanica, the Portugal laurel, can be used for hedging or as a single shrub, needs cutting only once a year, usually i …
1
vote
Are there sources for what plants do require which uv light levels?
You might find information contained here: www.uvawareness.com/uv-info/uv-strength.php to be useful. This site has an explanation of the uv index and how its measured, but its really aimed at sun prot …
2
votes
Royal Frost Birch Leaves
They might, they might not. All the newly arriving leaves should be burgundy, but remember that this colour fades down in late summer and turns to orange/red or yellow at leaf fall. When it leafs up a …
4
votes
What would grow well under a trampoline?
Nothing useful really. Lamium maculatum varieties, Vinca, but both of these can become invasive, so in a lawn, you wouldn't risk it. Ajuga reptans if it doesn't dry out regularly, but you'd probably h …
2
votes
Accepted
Should young citrus (kumquat) seedlings be kept under direct sunlight or indirect sunlight?
In a bright place, but not direct sun - no tiny seedling likes direct sun much. Direct sun should be fine once they've got going, been individually potted and got 10 sets of leaves as a minimum, but n …