How a Professional Grower Fools Plants into Flowering
Vložit
- čas přidán 4. 11. 2022
- Plants can be manipulated to bloom (or not) on your schedule, and one of the most important tools is their response to the length of day: photoperiodism. Of course, light is fuel for plants - so sunshine hours are important in all areas of their health, but in this video I'll be discussing the way plants use light to make decisions: should they bulk up their foliage, store energy into their roots, flower or go dormant? For some plants, these decisions are guided by the way the length of day changes through the seasons.
Growers routinely use this information to "force" plants to bloom, or to prevent premature blooming - and this knowledge can be very useful for garden hobbyists too!
If you find these videos useful, here are a few things you can do to help us out:
Send a tip: www.buymeacoffee.com/fvrosefarm
Have a look at our Amazon shop: www.amazon.com/shop/fraserval...
Drop us a "Like" on our Facebook business page:
/ fraservalleyrosefarm
Leave a review of our farm on Google:
g.page/r/Cfi8qXv8QReZEBE/review
Photo credits:
Christmas Cactus by Empereur Day CC BY-SA 3.0
Turnip flowers by Ashis32 CC BY-SA 4.0
Cattleya by Katja Schulz CC BY 2.0
Greenhouse flowers by USDA CC BY 2.0 - Jak na to + styl
I genuinely can’t believe this information is presented like this for free. This is HOURS & HOURS of research. Thanks Jason
Thanks so much Peter.
Your videos are always exceptionally educational and logically set out, breaking down more difficult concepts into easy to understand fundamentals. You don’t over-explain, yet you are able to hit all the important points and not miss anything crucial to the concept. Thank you so much for what you do, I don’t know of any other gardening channel that teaches me this much!
Ditto!!
Thanks for letting me know. It's always tough to know how "in-depth" to go for a topic, but I'm glad to hear I hit it about right this time.
Jason, You are the most hard working, organized person on CZcams. Your information is excellent. Thank you.
Aww... thanks!
I learn so much every time I click a video! Thank you
Thanks Jess!
I can’t believe how much I learned in one video. Never understood a lot of this and I’ve been gardening over a decade.
I truly appreciate a non sensational video. Gardening has many challengers and great informatiom is not easy to obtain. Thanks for great educational videos.
Wow, Jason, I know I've said it before, but you are an excellent teacher.
Thanks so much Kelley. I'm glad you found it useful.
Wow there’s just good learning that I got from your discussion, such an excellent answer to a lot of questions! Thank you 🙏
The one that knows what he's talking about and full of knowledge about plants. I love how you explain everything. Thank you for all you do to teach us on how to grow and improve our planting skills. Keep up the good work.
Gardening master class. Answered some questions I’ve had for a long time, but also raised even more questions i never even knew i had. Didn’t know gardening could promote this level of intellectual curiosity. So cool.
Thanks so much Han soh!
You are my favorite horticulturist on CZcams! The information you post is clearly presented and well researched - thank you!
Aw... thanks so much!
Wow, you have certainly given us a vast amount of information, I for one am going to save this video to rewatch again. I’m thinking to myself, you should be a teacher for your passion of growing. I’m seeing weight loss, hopefully it’s from healthy choices and not from overworking. Thanks so much for sharing your passion. 👍❤️😊
Thanks very much Carmen!
I going to have to watch it again, too.
Good Jason, excellent information.
Thank you Ankita
@@FraserValleyRoseFarm Your welcome Jason.
So good to see you again Jason. Your video is absolutely the best I’ve heard so far. You are so informative you are a jewel for all those that are interested in learning and doing gardening. I still care to learn, that I hope will never stop, but I’m afraid little by little I do less and less gardening. Always young at heart dear friend Jason, but ones skeleton demands to slow
down. You are looking good and healthy👍💖
Thanks so much Ignacia - and I hope you enjoy a mild Mediterranean fall and winter!
This is such an interesting video. I had no idea. Started different types of cosmos from seed early this spring. All started at the same time and all planted out at the same time in late May or early June. Yet there were three or four plants that didn't start blooming until well into September, one never did. One of the others was huge and full of buds and yet I had no idea what color it was. Almost cut it down because we were heading into October and it needed to be staked, but let it grow on. So glad I did. It was the most amazing dark burgundy color I have ever seen and I was able to save some seeds. But am still not sure why it took over four months to bloom in a full sun location. Now will do some research. Thank you for this information!
Thanks for watching. I hesitated with this vid for a bit because there's some uncertainty in the answers - I don't doubt that your one cosmos plant waited so late because of a stronger short-day response than the other seedlings. But that variability (even among seedlings in the same batch) can make understanding and managing the plants difficult on a larger scale. For this reason, you'll often see big seed companies striving for (and advertising to growers about) uniformity in their crop timing.
@@FraserValleyRoseFarm Even if you don't have all the answers, this video was something many of us didn't know about and it certainly sparked a lot of curiosity and interest to do more research for me. As with most everything to do with gardening there is always new data to help us along. This CZcams channel is a big part of that so thank you!
Thanks for sharing! You always have such detailed information I struggle to find elsewhere and I appreciate you
Thanks Basil
This video definitely directed me toward solving some of my more complicated challenges.
Another great video.
This is why yours is the only channel on which I have set notifications.
Thank you so much for sharing your time and knowledge with us.
Lazy dog is good too..
Thanks so much hpi2beme!
Jason! What a brilliant idea for a video. Only had a minute bit of knowledge on this super important subject. This changes a lot for me since I have a bit of everything. Roses, succulents, Japanese maples😉, and tons of “you name it” here in NE Oklahoma. I so appreciate you! Thank you.
Excellent! Greatly appreciated
A brilliant video. I’m gonna have to watch it again and take notes.😮
Yep in Northern Queensland my roses bloom all year long - now I know why, thanks mate.
AWESOME INFO/EXPLANATION!!! THANKS SO MUCH 🥰. Now I totally understand why my 60 day zinnias only started to bloom right before the first frost killed them; I started them late when we were having long hot days. Couldn't figure it out for the life of me, and wasn't going to ever grow them again! Now I know what to do, and why. 🥰 Happy🌹🌹🌹 Gardening 🥰
You have the best videos on you tube! I can't believe how much I've learned already, and now I'll just need to retain all this information! You make me wish I lived in Canada instead of Madison, Wisconsin!
Great information! I had issues with trying to get celosia to grow well and maybe this my problem 🤷♀️ worth a try again since I still have the seeds.
very educational, thank you!
For raspberries, we water them for a few minutes every hour until about 2pm. When we want them to flower we just cut that off for a few days until they start to wilt quite badly. Then we turn the water back on and they break within days. Something about producing seed when their time is up.
Jason will hate me for saying so, but very diluted glyphosate or glufosinate will also trigger flowering.
Thanks Brad - the stress response can be really useful. I heard from one of my horticulture profs that cannabis growers will push high fertilizer levels almost to the point of wilt at the front end of flowering to "panic" the plants and encourage heavy flowering. Also, tomato growers sometimes used the "dry-farmed" method, where they continually push the limits of how little water they provide the plants - resulting in a good set of extremely high quality fruit.
A couple of years ago I discovered that my kalanchoe would rebloom if I left it on the windowsill behind drapes. I thought it would be too cold for them (zone 4) but they were fine. They start blooming nicely in January and I still have some straggly flowers in June.
So much info! I’ll have to watch it again 🙂
Thanks for the video, great job 👍
My pleasure - and thanks for watching!
Thank you Jason. I always learn so much from your videos, very informative and easy to understand
Thanks The Turtle 🐢 Gardener - I appreciate the support!
Another great video. Cant stop watching! Thank you!
My pleasure!
Alway's enjoyable & informative, thanks Jason.
Excellent video 🎉
Very interesting.
Thank you for another video packed with useful and interesting information.
I'm glad you enjoyed it Amy
Interesting! Learned something today! Thanks Jason🤗
My pleasure! Thanks for watching Cami
Hi Jason. Thanks for your video. Much love from Trinidad.
Thanks Annie!
Very interesting
Wow Jason! You must be reading my mail, as they say. I'm a first year, small greenhouse, home gardener. Yesterday I put led lights over the tomatoes for a few extra hours after sunset. Zone 7B. Your informative video opens provided information and search terms to learn more about what I am trying to accomplish. Thank you very much! I appreciate you 🌱🏡
Thanks Denise. I'm glad you found it useful.
I learned a lot here, great explanation, thanks for sharing!
My pleasure. Thanks for watching Lara.
This was so interesting! Thank you!
My pleasure Eleonora
Great video. Thank you!
Very much my pleasure. Thanks for watching Urban Chicken Momma!
Excellent information that I've never heard explained as well! My neutral begonias and geraniums do indeed keep flowering in the garage almost all winter since it doesn't get down below 50.
Thanks Kate
I just want to add my two cents, that's amazing information. Would probably need to watch it more than once but so well taught!!! Thanks.
Thanks you Janice
Good video 👍🏻
Very interesting, Jason. I have a greenhouse where I start seeds in the early spring. Your video gave me a lot to consider that I never thought about before. Thank you! Always enjoy your content. NE Ohio gardener.
Thanks Janis!
My dear friend, you are great! Your detailed and well explained educational videos and your pleasant personality make watching your videos a real joy. Keep up the good work 👌❤️
Thanks so much Alex!
Excellent ! Thank you Jason great information! 🍁🍂🍁🦃💚🙃
My pleasure Judy - thanks for the feedback!
Thanks!
Thanks so much Cindy - we really appreciate the support!
Excellent video, Jason. 👍
I appreciate the feedback Jake
🤯 I think this set of facts - totally new to me - related to why my snapdragons (and other seedlings) failed this last spring. Thank you for this!
Very much my pleasure! Thanks for watching
I've always started Zinnias early with supplemental light & heat. This year, I just let those that self seeded into good soil grow as they wanted. They have bloomed like crazy all summer & just this last week got mildew. Learning by chance offers real insight sometimes. Still cutting bouquets for the house in November with zero work on my part, win/win!
Thanks Katie. I like that kind of gardening: minimum effort/maximum reward!
Thank you this information. I have a Christmas cactus and for years no blooms, nowI know what I am doing wrong😊
My pleasure Dorothy. Best luck with your Christmas cactus!
Jason, I've been doing this without knowing what I'm doing. I bought 2 poinsettias 4 years ago and I keep them on the closed in porch on the edge of the koi pond. I usually have a light on in the porch to enjoy the fish. This year I started leaving the light off to promote red leaves on the poinsettias. So I didn't know what it was called or why, I just knew that most videos say put them in a dark closet. I know they grow down south out side so I didn't see the point of a dark closet. Now I know why I'm doing this. Thanks for the lesson, Jason.
Thanks Dennis - you bet. You can learn so much from personal experience and observation!
Hi Jason, Thank you for the great content!!! We have a fenced acre we've grown organic veggies on for the past 5 years and next summer we are growing all cut flowers and opening it for a U-Pick. We are are on border of zone 3/4. I spent all morning trying to find info on photoperiodism for zinnias and cosmos with little luck. The only content I could find was from 2014 before LED lights were popular! Do you have any idea where I could find current info? If I could force the zinnia's etc to bloom 3 weeks early it would be almost another month of income for us during our short growing season. Thanks for all the great tips! I can't wait to try propagating my hydranga's next summer! God Bless!
Whoa. This was awesome info. I wonder if this is why it is SO hard for me to start seeds outside when I have enough days left before a frost, but I can't get the annual seeds to the flowering stage? (ie: phlox drummandii, bachelor buttons, bupleurum)
Could definitely be that some varieties need the long days (or some other daylength signal) for flower initiation
I love your videos. Please don't stop. As an aside, youtube keeps wanting more and more ads. Can we have singles instead? I really don't want to return to the pattern the old television had. Thanks.
Thanks Linda. Sorry, but I don't get a lot of control of of Google's ad decisions.
Interesting topic that I think a lot of people aren't aware of. Here in Costa Rica the day length changes are pretty minimal. Poinsettias still bloom in December, though I've been told that some of the nicer cultivars don't without putting them in the dark for a while. You list corn as daylength neutral. But sweet corn won't develop well here in the tropics. It tried a few times with a few varieties, and the plants end up only growing to about half size at best and producing small underdeveloped cobs. Normal feed corn does just fine.
Its a method used in cannabis growing . They pull a tarp over the greenhouse making 12 12 day night . Indoor they use a timer on the light .
Thanks Siggy. You're right about corn. Although it's listed in many references as day neutral, I found an academic resource that back up the daylength response for sweet corn varieties: www.extension.purdue.edu/extmedia/NCH/NCH-43.html These variety specific responses is what makes it so important that gardeners can gather their own information. In another part of the video I talked about marigolds as short-day crops, and it's true for most - but some of the newer triploid varieties are closer to day-neutral.
I have heard of cannabis growers doing this. I have a question for you LED lights which ones would be used for starting seedlings probably 2 foot starter box or green house thank you for your time and information
There are a few good choices - and if you decide to go for a dedicated grow light maybe look at the Senelux SE-1000 or the Mars Hydro TS1000
Well..kinda explains my zinnias...lol..this is just all way too much of a bother for my non professional sprouting. I feel lucky as hell when my seeds sprout which is my real secret reason i garden...the veggies and flowers are just the perks. This fall I had the most success i have had.. ever had in my almost 80 years...i got lettuce out my ears...and peppers...brassicas...and cucumbers ect.....but my best peas ever...im so growing in the fall again..
But this is all after the most brutal spring i have ever had..it was hard work just keeping things alive...please lord send more rain!!
Thanks Sislertx - it was an oddly productive fall here too (and although I didn't answer it explicitly in the video, that's why my unwise roses were throwing one more flush of flowers - it's been nice out up to now!). I'll have to think about some extra fall planting next year too.
WOW, talk about food for thought! This year I’ve been noticing my plants are out of sync. I just recently purchased my first Hosta and they’re blooming in November, so are my Day Lilies that I transplanted I live in Ohio, 6a. But my question is I have a rosebush (climber) that has no rose hips on it, I’ve never had a rosebush not have rose hips on it going into winter. Does that mean I will not getting any roses next year?
No, being out of bud going into winter is no reason for concern - all of the new season's blooms will come from newly formed buds in spring.
@@FraserValleyRoseFarm Thanks! This was a replacement rose for one that had died. I’m not that experienced with roses. But now I’m up to five bushes and two climbers and I’m trying to start four from clippings this winter. I’m just now starting to play with flowers. I’ve done vegetables but never flowers. Thanks again for your information.
A huge puzzler for me. Pole lights. Our electric company puts pole lights on the rural homes meter pole. How do they affect the plants that get that overnight light? I have a couple dozen Japanese maples and of course my Roses get the light. It doesn’t seem to make a difference though. But I’m not sure. Thank you!
Thanks Cindy. It does depend on how intense the lights are - and which plants are nearby. I think Japanese maples and roses should be okay, because they respond to other factors than light for their seasonal decisions. I did see a reasonably credible article on the effect of street lights here: flourishingplants.com/do-street-lights-affect-plants-the-effects-of-light-pollution/ but I wouldn't go overboard on their conclusions. Except for the area directly underneath the lights, the intensity falls off dramatically with distance.
@@FraserValleyRoseFarm
Because they respond to other factors! Key sentence right there. You did mention that! Lol! Thank you
Did you get a new camera? Video quality is really good today
Probably yes, and please let us know which one is it! Stunning video btw!
Thanks Nurser Lucy. It's the same old Canon M50 - but because I shoot (mainly) outside, the light conditions can have a lot to do with how it turns out.
Hi Jason, how about roses? How would you make them bloom faster?
Hi Raymond. Roses don't respond to daylength per se, just total light and temperature - and you have plenty of both in the Philippines! Maybe too much at times. I'm told temperatures much above 30C will stress the plants and reduce photosynthesis & flowering, but other than a little heat protection, it's just a matter of focusing on healthy plants.
@@FraserValleyRoseFarm So I need to shade them up a bit? Like a roof of net so it will get filtered light?
Working memory…. I can’t even remember what I had for breakfast… 🤣
Lol.
The video is mis-titled, Jason. It's much more interesting than "how to fool plants."
Thanks Firefly! I'm open to suggestions... but I'd argue it's a better title than my original draft "Manipulating Photoperiodic Response in Horticultural Applications"
Oh that's how my uncle got jail time for growing his plants in the attic
I put mine under 12 hours of dark . Oh roses sorry
Roses won't respond to daylength directly, just total light energy and temperature.
@@FraserValleyRoseFarm ohh thanks . Everydays a school day . 👏
Very interesting, thank you.
My pleasure. Thanks for watching Gail.