Growing Poinsettias as a Greenhouse Crop

Growing Poinsettias as a Greenhouse Crop


I’m Beef-liane and this is B-Rad and we
are the Hortoccult thanks coming along for the ride on this episode of
the podcast we’re gonna talk about propagating poinsettias and your simple
maintenance care for once you have that poinsettia so we are actually
looking at the culture guide the poinsettia a culture guide you can you
look up this on any plant any plant in cultivation yeah and a culture guide is
is great for growers but it it’s also good for for any level of people
interested in gardening plants gives you a guideline as far as what they need
from the beginning to the end so here it says open your box upon arrival and
check the temperature unpackage the cuttings so real quick though cuttings
are just simply a chunk of the plant from a mother plant
so from a stock plant when you order a poinsettias float for the greenhouse you
actually order cuttings you don’t order the mama plant that’s right that’s right
there’s there’s patter or many many patents how long they’ll stay good
they’re they’re nearly overnighted I mean that it’s you can’t keep them in in
the box and in the bag for very long and the reason why the the hidden trick
behind that is the longer they stay in the box the more ethylene buildup and
ethylene is a gas it’s natural it’s produced from the plant that desiccates
or ripens the basically any any living plant or and/or fruit that’s what ripens
your fruit is ethylene so so starting to decay uh-huh so you you receive those
quickly you unpack them quickly but now that they’ve been unpacked and exposed
to oxygen and air they need to be humidified or misted and it says it’s
prefer to stick unrooted cuttings right away so they’re saying plant get them
going very much but if you must store cuttings keep them
cool 50 degrees Fahrenheit for for no more than 24 hours yeah so refrigerator
right yeah that’s first two days limit stress
I can’t result from transition from propagating of the cooled cutting so
yeah reason minimizing or limiting stress is simply just misting them now
in a greenhouse we have boons that run over the the crop every so often
approximately every five to ten minutes misting it not you’re not dumping a
bunch of water on the leaves but you’re just simply misting and building the
humidity and by doing so the plant stays turgid the leaf stay is turgid and so
which means it just stays hydrated and and that’s what we do and you and you
just keep that same watering or misting pattern on there for many many days
reducing the the time or the duration of that misting it’s so you we typically
back it off from about five or ten minutes every day we reduce it by a
couple of minutes until you finally gain Callison on the bottom part of that cut
so kind of like a human’s we we get a cut on our skin what does our body do it
creates scab pre scab is would be a callus and that’s exactly what the
plants are doing they they callus up and then after the callus plants have this
unique ability to then reformulate their cells and change their stem cells into
root cells so right right where that callus is where it kind of gets white
and and expands that’s where the roots will then emerge and the cells have
changed and from stem cells to root cells it takes about eight days after
sticking a cutting so this is I mean you have to be so like invested to back that
watering off a little bit every single day every single day
if it’s a cloudy day back it off a little more if it’s a sunny hot day keep
it on there a little bit longer the idea is to get it to callus after about eight
days roots will start to emerge very very slowly and voila so this is after
you’ve put it into so you’re taking your cutting you’ve dipped it in the hormone
you’ve put it into your little like a soilless mix or or the little foam Oasis
those are that that would that’s a great way to do it and so it has not only
something to hold it upright but it also has the medium is able to hold on to
water it only takes 23 2 to 28 days to root out to root out and to be able to
plan it into a pot uh-huh yeah yeah so it’s okay so in relative terms that’s a
long time for for a plant to create roots that may not seem like very long
but like if you take a petunia or calibrachoa do the same thing dip it in
hormone put it in soil keep the mist on there you can route that dog in and like
five six days BAM and then you can just take it in Planet
in the pot yeah well yes so so usually what you do is after that five or six
days that you you allow it to callus and then start to root out you give it we
give it an additional week to two weeks to really establish its roots in that
little cell before we pluck it out of there and plop it into a larger size so
what would you move it from what about what size well yeah and that’s a great
question so you can grow liners and then transplant them from the liner’s to the
final pot so the final pot in this case in a commercial greenhouse is let’s just
say a six inch pot or a one-game they call it a one gallon pot and you can put
one plant in there but if you have a let’s just say you have a 10 inch so I
just mentioned six inches you have a 10 inch size pot okay the
best thing to do there is not put one cutting in before boom-boom-boom-boom
you put you’ve got four plants in one pot and it’s gonna create this giant
beautiful large poinsettia ok so just real quick poinsettia points 88.8 your
plants are in their native environment trees so you can imagine in the
commercial greenhouse we’re basically growing trees in a container and we’re
trying to keep them at a relatively short size a small shrub size really and
so by doing that it’s very important early on to pinch so once you have once
you have about and it depends on how big of a poinsettia you want as to far as
how far down you pinch your poinsettia but you want to end up with between four
and seven leaflets so you’re pinching down to four to seven leaflets what that
equates to what that means some might say why are you counting leaflets what’s
the big deal what how does that even matter that’s how many Brax you’re gonna
end up with which is the flower at very very end you pinch it down to seven
leaflets you’re gonna have seven Brax bow that’s how you can count it out so
if you want a really really big poinsettia in a 10 inch pot then pinch
you down to seven four of those plants in a 10 inch pot
now you’ve got 28 racks at the very end guarantee I have an old point Cydia okay
could I pinch that and do all that stuff to it and cut it down like a little tree
to like make it sprout a bunch you could yeah yeah I just whip this out look at
this thing it’s kind of gangly and here’s it’s three different poinsettias
yep and this is actually one that you gave me two years ago but if you look
these are all gonna be the racks yeah that’s right yeah so I got a lot yeah
this way you know and that’s that’s the interesting thing is I don’t know a lot
about tending a poinsettia oh yeah for the longevity right and so
you’re absolutely right you’ll have a Brack here they’re they’re in it’s in
it’s asymmetrical I mean there’s not it has a kind of a fun funky shape you know
but and and and long gangly and and they amazingly become a little bit woody at
the base and that’s absolutely normal it’s a tree right I mean it’s a tree in
a tropical area so that’s kind of totally to be expected now if you wanted
to propagate this for your own personal home and well-being give it a shot you
would propagate from this really green the upper so you’re saying I could cut
that and stick it and make a separate and clone it from this right here yeah
you could you’re saying to you if you yeah you could clone that and just keep
that within your within your your homestead your house so I could
basically start over yeah and and here’s the thing is that it’s not just
poinsettias but really there’s a lot of plants out there
aka it’s called propagation a lot of plants out there that you can propagate
via cutting and this is that’s the that’s basically yeah you’re taking that
the nice green wood or stem which is able to change itself
from stem tissue to root tissue now if you took this old woody stuff it’s not
likely yeah it’s not likely to work it’s actually starting to leaf out the notes
of the woody stuff mm-hmm so those are gonna be new yeah called ox ox alert
auxilary buds and a lot of trees and plants have auxilary buds right next to
that I’m just surprised I kept it alive this long okay yeah I mean it was a
compression I’m highly impressed that’s really bad for a while I’ve kind of come
up with the system now and we’re actually doing bad because I’m keeping
it in the light at night but I kept it in the closet a little longer today so I
put it in the closet at night so it doesn’t get any of this light and stuff
fake light oh yeah yeah that will delay and/or abort any kind of a collar color
up yeah yeah so I need to get this thing in the dark okay but yeah that’s my
point say I’m pretty happy with it you know what brought it back to life
was in the summer I stuck it out on my porch and it loved it absolutely loved
it totally just exploded yes I’ve had it as an indoor plant so it just wasn’t
getting enough light you know if I could keep it going I think I’m just gonna
keep it awesome that’s excellent yeah so yeah just real quick I mean the the the
amazing longevity of a poinsettia clearly you can see taken care of can
last many many years it’s a little bit tricky to get them to change to that red
coloring that a lot of people adore it’s so last year it did it late it was in
the summer I had a red poinsettia in the summer I don’t know how I tried but it
just delayed it so much yeah I think what happened is I gave it the photo
period but I didn’t I didn’t give it any
nutrients I didn’t give it the to grow the new Brax so they know it grew the
Brax and then I had little little points idiot
Brax on okay yeah yeah man that’s that’s crazy we’re delayed but at least this
year it’s pushing them out right now yeah so we’re in November it might be I
actually might have a red red leaf poinsettia by Christmas yeah you’d
really want it so you want to make sure that the light is less than way less
than 12 hours a day yeah yeah I’m trying to do like eight hours like this is not
usually have in my closet right now so it’s it usually does not get any light
after sunset yeah I keep the poinsettia in the closet that’s the answer to the
redness I bring it in and out you leave it in the closet the whole time no no no
yeah cuz I heard when when I’ve heard people say put it in the closet well I
put it in the closet and I almost died because I didn’t take it out of the
cloud out so you have to rotate it put it in the closet during the nighttime
yeah the Sun’s up bring it out Sun Goes Down put it in the closet
yeah they are amazingly they’re they’re high feeders meaning they like
fertilizer a lot in the beginning to build the the Brax and they’re high
photosynthesizers so in the beginning because obviously once okay once it’s
developed once it’s matured a lot of the time when those plants are sold then
they leave the greenhouse they go to the store then they’re bought from the store
they’re taken into a home usually the home is low light in the winter and they
typically don’t get fertilized from the point once they leave the greenhouse
they don’t get fertilized and so really once they’ve grown to that point of
maturity and they’ve transitioned from vegetative to reproductive aka switching
colors right on the Brax then they don’t need nearly as much fertilizer it’s not
a big deal and they’re not as big of photosynthesizers anymore you know
usually the Sun they’re there building stem cells and girth and
strength and then at one point they can they’re just they’re just chilled
they’re relaxing the plant the points that it has gone into I’m just gonna
relax now I don’t need to build anything of any of any sort one thing that is
important as you’re growing poinsettias they’re very susceptible to root rot
depending on the variety and whitefly that’s the bug of choice that loves
poinsettias so you’ll never see and never say never but you’ll never see a
Fedeli see thrips and rarely ever see mites on on poinsettias but whitefly for
some reason love the smell of poinsettias they will they will find it
and track it down and try to devour that so do you think that it’s because of the
latex that the other little critters don’t like it or is it I suspect because
it’s in the euphorbia family yeah because it has that latex inside is the
that’s my that’s kind of my guess not hundred percent sure but yeah whitefly
for some reason they just they really go after it and the disease that root
disease I was telling you about Pythium and Rhizoctonia so they’re both soil
borne disease they trans they transfer through water it’s a fungal disease yeah
it’s a fungal so the best way it’s the best way to manage that is simply just
water it really well we’ll let it dry down have a dry down cycle water it well
have it let it dry down poinsettias are amazingly tolerant of being over wet and
under wet but if you keep it too wet too cold yeah it’s it is it has the
propensity to to get that disease so don’t like maybe once a week water it
pretty good it depends on white levels depends on heat is it near a vent you
know what I’m saying like it was near a vent it needs it more yeah it’ll simply
just dry out more but one of the best determining factors for us if we’re like
oh the top of the soil looks dry well go pick up the pot yeah that’ll tell you
more than anything or even unpause it right take the the whole plant flip it
upside down holding it check the roots if the roots are glistening wet at the
very bottom it doesn’t need water even if it’s dry at the top we want to
visually inspect it but you also want to like lift it up and feel hey is there
any water at the very bottom but you know that
kind of gives you a little bit to buy it off and cheer for a second where’s that
culture guide when you have white pith um yeah when you have white roots it’s
there they’re strong and healthy if they’re so really that could be
controlled by the cultural practice yeah yeah and that’s what I would recommend
as much as possible one because it doesn’t cost anything
right just pay attention to your watering and you’ve you’re eliminating a
huge problem you can always bring in fungicides and there’s many many
different types that you can use for something like that why put yourself in
harm’s way and your pocketbook versus just cultural that’s a very long crop
just FYI yeah yeah six months it’s a six month crop like you know granted we’re
growing some of these big guys that are that are you know like three feet tall
so okay three feet might be an exaggeration it feels like three feet oh
cool there’s poinsettias if you anyone wants to start growing poinsettias now
you have the full guide and resource titi so rock on Babylon all right thanks
so much bad you better blend thank you thank you I’ll ask my man did you lose your mouse
because that’s what I thought I heard

Leave a Reply

Your email address will not be published. Required fields are marked *