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Aug 4, 2021 3:30 PM CST
Name: Tiffany purpleinopp
Opp, AL โ˜ผ๐ŸŒทโš˜๐ŸŒน๐ŸŒป (Zone 8b)
Houseplants Organic Gardener Composter Region: Gulf Coast Miniature Gardening Butterflies
Garden Sages Plant Identifier Million Pollinator Garden Challenge Garden Ideas: Level 1 Hummingbirder Foliage Fan
I thought it might be fun to collect anecdotes about plants that can tell time or "predict" weather.

Such as "poor man's weatherglass", Anagallis arvensis, comes in red and blue. Flowers close unless it's pretty sunny. Just because a dude is poor, I don't think he needs flowers to close up to see that the sky has clouded over, but nobody asked me about this nickname. LOL!


Ornamental purslane has similar behavior, opening its' blooms well after sunrise and closing well before sunset. It could use the nickname "work plant" because if you work regular daytime hours, you won't see the blooms except on the weekends - but it's busy while you are, working to serve the bees.



4'o'clocks open at different times, depending on the afternoon exposure, but you know if you see them open, the day is almost over. To see the earliest possible blooms, put on the east side of the house or structure or other tall plant so the shadow will fall on it as early as possible.


One obvious one is morning glories & moonvine. Not all Ipomoeas prefer to only open their flowers after it has gotten dark and close them around dawn, but these can be a reason to get out there early and take a look around. To have blooms as late as possible into the morning, put where there's tons of afternoon sun but shade first thing in the morning.

Moonflower (Ipomoea alba)

My grandpa (in OH) pointed out to me how the silver maple trees "turn white", with their leaves flipped to show the bottoms, before it rains.
The golden rule: Do to others only that which you would have done to you.
๐Ÿ‘€๐Ÿ˜๐Ÿ˜‚ - SMILE! -โ˜บ๐Ÿ˜Žโ˜ปโ˜ฎ๐Ÿ‘ŒโœŒโˆžโ˜ฏ๐Ÿฃ๐Ÿฆ๐Ÿ”๐Ÿ๐Ÿฏ๐Ÿพ
The best time to plant a tree is 20 years ago. The 2nd best time is now. (-Unknown)
๐Ÿ‘’๐ŸŽ„๐Ÿ‘ฃ๐Ÿก๐Ÿƒ๐Ÿ‚๐ŸŒพ๐ŸŒฟ๐Ÿโฆโง ๐Ÿƒ๐Ÿ๐Ÿ‚๐ŸŒพ๐ŸŒป๐ŸŒธ๐ŸŒผ๐ŸŒน๐ŸŒฝโ€โ˜€๐ŸŒบ
โ˜•๐Ÿ‘“ The only way to succeed is to try! Try to be more valuable than a bad example.
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Aug 4, 2021 5:20 PM CST
Name: Peggy
Temple, TX (Zone 8b)
Birds Bluebonnets Butterflies Hummingbirder Irises Lilies
Native Plants and Wildflowers Region: Texas Deer
I've seen the ornamental Purslane do this in the past.

We have several huge clumps of Four O'Clocks at our cabin and they open mid afternoon. We also have Oenothera triloba at the cabin and it seems to close at night and reappears after sunrise late morning. There are spiderworts at the cabin as well. I had the giant ones (at my last house) and those closed up at night, reopening early morning. We have hundreds of the tiny Edwards Plateau spiderworts at our cabin property. I honestly haven't noticed if they close up or not at night, but will observe our next overnight stay.

My new Moss Rose 'Salmon' opens around 10am when first morning sun actually hit the pots. Sunshine has to get up over a tall oak tree first before that happens. They close late afternoon routinely and also close if it gets dark with clouds and/or rain. The other day, it was raining about 4pm, sun was peeking through the clouds for quite awhile. They closed up with the onset of rain/clouds but did NOT re-open when the sun peeked through for 10-15 minutes. That might have played out differently had the rain shower been at say high noon? I don't know.
My low-carb recipe website: https://buttoni.wordpress.com
Last edited by Peggy8b Aug 5, 2021 8:58 AM Icon for preview
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Aug 6, 2021 10:30 AM CST
Name: Ginger
Fountain, Florida (Zone 8b)
Charter ATP Member Plays in the sandbox Plant Lover: Loves 'em all! Region: Gulf Coast Tip Photographer The WITWIT Badge
I was one of the first 300 contributors to the plant database! Native Plants and Wildflowers Birds Plumerias Hummingbirder Dog Lover
Night blooming cereus blooms after dark and is done when the sun comes up. But if it's an overcast morning I have had them stay open until 10 or 11
Each cloud has a silver lineing if only you look for it.
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Aug 9, 2021 10:08 PM CST
Name: Sandy B.
Ford River Twp, Michigan UP (Zone 4b)
(Zone 4b-maybe 5a)
Charter ATP Member Bee Lover Butterflies Birds I was one of the first 300 contributors to the plant database! Million Pollinator Garden Challenge
Seed Starter Vegetable Grower Greenhouse Region: United States of America Region: Michigan Enjoys or suffers cold winters
This is an interesting thread, Tiffany! It doesn't exactly predict anything, but I've noticed that my PJM rhododendron leaves curl up once the temp dips below 32ยฐF. Which will not happen any time soon, hopefully! Smiling
โ€œThink occasionally of the suffering of which you spare yourself the sight." ~ Albert Schweitzer
C/F temp conversion
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Aug 10, 2021 12:06 AM CST
Name: Bea
Zone 8b Oregon (Zone 8b)
Amaryllis Heucheras Keeps Horses Hostas Houseplants Hummingbirder
Hydrangeas Keeper of Koi Lilies Plant Lover: Loves 'em all! Region: Pacific Northwest Ponds
Evening primrose Oenothera biennis. Brilliant lemon yellow flowers open at sundown.
Interesting shaped seed pods .

Thumb of 2021-08-10/bumplbea/418975


Thumb of 2021-08-10/bumplbea/607b4c

Thought this would be of interest.
Plants that move on their own. Types Of Nyctinastic Plants:
https://www.gardeningknowhow.c...
Iโ€™m so busy... โ€œI donโ€™t know if I found a rope or lost a horse.โ€
Last edited by bumplbea Aug 10, 2021 12:52 AM Icon for preview
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Aug 11, 2021 2:49 PM CST
Name: Gary
Wyoming MN (Zone 4a)
Love that last photo Bea!
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Aug 11, 2021 6:31 PM CST
Name: Bea
Zone 8b Oregon (Zone 8b)
Amaryllis Heucheras Keeps Horses Hostas Houseplants Hummingbirder
Hydrangeas Keeper of Koi Lilies Plant Lover: Loves 'em all! Region: Pacific Northwest Ponds
Thank You! hastasmoreโ€ฆ.
Iโ€™m so busy... โ€œI donโ€™t know if I found a rope or lost a horse.โ€
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Aug 15, 2021 12:42 PM CST
Name: TK
Ontario, Canada (Zone 6b)
Region: Ukraine Cactus and Succulents Sempervivums Adeniums Bromeliad Tropicals
Aroids Hibiscus Sedums Container Gardener
Mimosa pudica!

All their little leaflets don't just close when touched. But once the sun starts to go down, they all fold up nice and tight.
ะกะปะฐะฒะฐ ะฃะบั€ะฐั—ะฝั–! Slava Ukraini! Glory to Ukraine!
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Aug 15, 2021 7:34 PM CST
Name: Paula Benyei
NYC suburbs (Zone 6b)
Prayer plant..
Thumb of 2021-08-16/Turbosaurus/5270f6
The plural of anecdote is not data.
The plural of bozos is Dasilyl - so please don't engage with my website troll who typically caches my first post and responds ugly just to be nasty. If it gets upity, please ignore it.
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Aug 15, 2021 7:37 PM CST
Name: Paula Benyei
NYC suburbs (Zone 6b)
Prayer plant.. rolls up it leaves at night, which is very cool because they're so purple on the back side.
Thumb of 2021-08-16/Turbosaurus/5270f6
The plural of anecdote is not data.
The plural of bozos is Dasilyl - so please don't engage with my website troll who typically caches my first post and responds ugly just to be nasty. If it gets upity, please ignore it.
Last edited by Turbosaurus Aug 22, 2021 6:53 PM Icon for preview
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Aug 16, 2021 5:12 AM CST
Name: Bea
Zone 8b Oregon (Zone 8b)
Amaryllis Heucheras Keeps Horses Hostas Houseplants Hummingbirder
Hydrangeas Keeper of Koi Lilies Plant Lover: Loves 'em all! Region: Pacific Northwest Ponds
I have read the prayer plant leafs under side is a dark magenta color because they naturally grow on the forest floor. And the dark magenta actually helps the plant capture and save light like a solar panel, rather than allow the light to go thru the leaf, it conserves the light enough to support the growth in deep shade.
Clever little plants. Thumbs up
Iโ€™m so busy... โ€œI donโ€™t know if I found a rope or lost a horse.โ€
Last edited by bumplbea Aug 16, 2021 3:30 PM Icon for preview
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Aug 16, 2021 7:24 AM CST
Name: Tiffany purpleinopp
Opp, AL โ˜ผ๐ŸŒทโš˜๐ŸŒน๐ŸŒป (Zone 8b)
Houseplants Organic Gardener Composter Region: Gulf Coast Miniature Gardening Butterflies
Garden Sages Plant Identifier Million Pollinator Garden Challenge Garden Ideas: Level 1 Hummingbirder Foliage Fan
Fascinating! Bea, that's the most adorable typo I've seen in a while "florist floor." We know you meant forest floor. : )
The golden rule: Do to others only that which you would have done to you.
๐Ÿ‘€๐Ÿ˜๐Ÿ˜‚ - SMILE! -โ˜บ๐Ÿ˜Žโ˜ปโ˜ฎ๐Ÿ‘ŒโœŒโˆžโ˜ฏ๐Ÿฃ๐Ÿฆ๐Ÿ”๐Ÿ๐Ÿฏ๐Ÿพ
The best time to plant a tree is 20 years ago. The 2nd best time is now. (-Unknown)
๐Ÿ‘’๐ŸŽ„๐Ÿ‘ฃ๐Ÿก๐Ÿƒ๐Ÿ‚๐ŸŒพ๐ŸŒฟ๐Ÿโฆโง ๐Ÿƒ๐Ÿ๐Ÿ‚๐ŸŒพ๐ŸŒป๐ŸŒธ๐ŸŒผ๐ŸŒน๐ŸŒฝโ€โ˜€๐ŸŒบ
โ˜•๐Ÿ‘“ The only way to succeed is to try! Try to be more valuable than a bad example.
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Aug 16, 2021 3:33 PM CST
Name: Bea
Zone 8b Oregon (Zone 8b)
Amaryllis Heucheras Keeps Horses Hostas Houseplants Hummingbirder
Hydrangeas Keeper of Koi Lilies Plant Lover: Loves 'em all! Region: Pacific Northwest Ponds
Wow Tiffanyโ€ฆ I just caught that too! At 2:30 pm. Spell Check at it againโ€ฆ Well what do ya do at 5 am in the mornโ€ฆ my eyeballs were barely open. "That's my story and I'm sticken to it". Hilarious!
Iโ€™m so busy... โ€œI donโ€™t know if I found a rope or lost a horse.โ€
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Aug 16, 2021 5:02 PM CST
Name: Ginger
Fountain, Florida (Zone 8b)
Charter ATP Member Plays in the sandbox Plant Lover: Loves 'em all! Region: Gulf Coast Tip Photographer The WITWIT Badge
I was one of the first 300 contributors to the plant database! Native Plants and Wildflowers Birds Plumerias Hummingbirder Dog Lover
Works for me๐Ÿ˜๐Ÿ‘
Each cloud has a silver lineing if only you look for it.
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Aug 16, 2021 6:21 PM CST
Name: Tiffany purpleinopp
Opp, AL โ˜ผ๐ŸŒทโš˜๐ŸŒน๐ŸŒป (Zone 8b)
Houseplants Organic Gardener Composter Region: Gulf Coast Miniature Gardening Butterflies
Garden Sages Plant Identifier Million Pollinator Garden Challenge Garden Ideas: Level 1 Hummingbirder Foliage Fan
Bea, it was 8:30 where I am when I posted that. You must be a west coast-er. ; )
The golden rule: Do to others only that which you would have done to you.
๐Ÿ‘€๐Ÿ˜๐Ÿ˜‚ - SMILE! -โ˜บ๐Ÿ˜Žโ˜ปโ˜ฎ๐Ÿ‘ŒโœŒโˆžโ˜ฏ๐Ÿฃ๐Ÿฆ๐Ÿ”๐Ÿ๐Ÿฏ๐Ÿพ
The best time to plant a tree is 20 years ago. The 2nd best time is now. (-Unknown)
๐Ÿ‘’๐ŸŽ„๐Ÿ‘ฃ๐Ÿก๐Ÿƒ๐Ÿ‚๐ŸŒพ๐ŸŒฟ๐Ÿโฆโง ๐Ÿƒ๐Ÿ๐Ÿ‚๐ŸŒพ๐ŸŒป๐ŸŒธ๐ŸŒผ๐ŸŒน๐ŸŒฝโ€โ˜€๐ŸŒบ
โ˜•๐Ÿ‘“ The only way to succeed is to try! Try to be more valuable than a bad example.
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Aug 16, 2021 8:39 PM CST
Name: Bea
Zone 8b Oregon (Zone 8b)
Amaryllis Heucheras Keeps Horses Hostas Houseplants Hummingbirder
Hydrangeas Keeper of Koi Lilies Plant Lover: Loves 'em all! Region: Pacific Northwest Ponds
Tiffany.. North Western coast in Oregon zone 8b. I'm a early birdโ€ฆ.
There are a lot of debrie on the florists floor especially on Mother's Day. Whistling
Iโ€™m so busy... โ€œI donโ€™t know if I found a rope or lost a horse.โ€
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Aug 17, 2021 7:06 AM CST
Name: Tiffany purpleinopp
Opp, AL โ˜ผ๐ŸŒทโš˜๐ŸŒน๐ŸŒป (Zone 8b)
Houseplants Organic Gardener Composter Region: Gulf Coast Miniature Gardening Butterflies
Garden Sages Plant Identifier Million Pollinator Garden Challenge Garden Ideas: Level 1 Hummingbirder Foliage Fan
I get up early too, usually just before dawn. Didn't used to be that way, but I sure am now. I feel blessed to be able to chat so easily with someone so far away and to be able to virtually enjoy your truly magnificent gardens!
The golden rule: Do to others only that which you would have done to you.
๐Ÿ‘€๐Ÿ˜๐Ÿ˜‚ - SMILE! -โ˜บ๐Ÿ˜Žโ˜ปโ˜ฎ๐Ÿ‘ŒโœŒโˆžโ˜ฏ๐Ÿฃ๐Ÿฆ๐Ÿ”๐Ÿ๐Ÿฏ๐Ÿพ
The best time to plant a tree is 20 years ago. The 2nd best time is now. (-Unknown)
๐Ÿ‘’๐ŸŽ„๐Ÿ‘ฃ๐Ÿก๐Ÿƒ๐Ÿ‚๐ŸŒพ๐ŸŒฟ๐Ÿโฆโง ๐Ÿƒ๐Ÿ๐Ÿ‚๐ŸŒพ๐ŸŒป๐ŸŒธ๐ŸŒผ๐ŸŒน๐ŸŒฝโ€โ˜€๐ŸŒบ
โ˜•๐Ÿ‘“ The only way to succeed is to try! Try to be more valuable than a bad example.
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Aug 22, 2021 7:13 PM CST
Name: Paula Benyei
NYC suburbs (Zone 6b)
the color/light is not why prayer plants roll up. it's much cooler than that..all about water retention...
they use the same red and high wavelength blue as other plants for photosynthesis, which is why the leaves are open and mostly green when the sun is out ( we see what the plant reflects.. yellows and greens and low wavelength blues that it doesn't absorb to create sugars).

at night, when there is no sun for photosynthesis, the leaves roll up to prevent unnecessary water loss through evaporation. they seal themselves up, while at the same time, allow night rain and collected dew to drip to the now exposed plants roots, where it will stay, because when the leaves open to collect sunlight again, they shade the soil around the roots to further retain moisture.. cool, no?

red wavelengths are the most easily absorbed by chlorophyll which turns electromagnetic energy (sunlight) into chemical energy needed to create long carbon sugar chains. that's why red leaves are usually saved for high cost of flowers. The red on the back of the leaves is simply efficacy. these are forest floor plants that grow in very competitive environments, they know the back of their leaves are not going to produce, because they won't ever get sun and stay low to protect their roots. .. they don't waste chemicals to stock both sides of a leaf w chlorophyll...

Makes basil look profligate, right? so clever, our mother nature.
The plural of anecdote is not data.
The plural of bozos is Dasilyl - so please don't engage with my website troll who typically caches my first post and responds ugly just to be nasty. If it gets upity, please ignore it.
Last edited by Turbosaurus Aug 22, 2021 7:33 PM Icon for preview
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