Dormancy....is it Necessary?

bronxfigsDecember 16, 2012

My DR-"ARROGANT"... went into dormancy around the end of September. It was growing outside, and when the cooler temperatures commenced, so did the dormancy period. The plant, now leafless and kept dry, was brought into the house and placed in a sunny window in my warm kitchen. I mist the plant and soil occasionally to prevent bone-dry conditions.

Now, new leaves are starting to sprout from the branch tips. I will take my cues from the plant and water more frequently as the leaves expand.

Questions:

Is a dormancy period necessary for containerized DRs?

If yes, what is the MINIMUM length for a dormancy period?

Is the flowering response triggered by the dormancy period?

Just curious.

Frank

Thank you for reporting this comment. Undo
rcharles_gw

Frank, from my limited experience.
I do not believe that the dormancy period is necessary for containerized or in ground plants. Is is a natural process triggered by temperatures as well a light levels. Having said this I have had some not lose their leaves at all. Where I live with colder fall/winter and lower light levels they are inside during these times. They only receive water when required as they will rot if dormant and wet with colder temps.
I let mine tell show me what they require.
I do not know if there is necessarily a minimum time duration for dormancy? If once they do go dormant. Minimum watering until temps. warm and they start showing new growth, then watering will become more frequent.
I am sure that a rest or dormancy will benefit the plants, but number of hours of sunlight and adequate feeding are factors in the plants flowering.
Hope some of this helps,
Rick

    Bookmark   December 16, 2012 at 2:56PM
Thank you for reporting this comment. Undo
bronxfigs

Rick....

Thanks for the comments.

I often wondered if the dormancy period was artificially prolonged once plants were brought inside, and placed in a warmer environment...especially if not given enough water to sustain any new growth.

My guess is that day length/photo period has a triggering affect on dormancy, as well as temps...but when a plant is brought back inside, these things can be controlled to a certain extent...but should they?

Yes, your answers have helped, and I think I will follow cues from the plants. Growing these plants in cooler climes can be a bit challenging, and low light levels during the winter months makes it even tougher.

Thanks again.

Frank

    Bookmark   December 17, 2012 at 6:34AM
Thank you for reporting this comment. Undo
karyn1(7a)

I don't know if it's necessary or not. I have some that are still flowering and are not under any artificial lighting. I have others that are under lights but have gone dormant and aren't showing any signs of regrowth yet.

    Bookmark   December 17, 2012 at 8:29AM
Thank you for reporting this comment. Undo
rcharles_gw

With the set up that I have and conditions available to my plants. I would not go to any further lengths, i.e. Artificial lighting MH,etc., to hopefully get more flowering and growth. If they go dormant in the situation I give and start regrowth in spring, then I am content.
I do have my seedlings under T5 flouescents just to keep them going and next winter there on there own. Only keep lights on them to extend the daylight period.
Rick

    Bookmark   December 17, 2012 at 9:21AM
Thank you for reporting this comment. Undo
karyn1(7a)

I originally stuck them under lights to see if I could stop them from going dormant. They continued to drop all foliage. Normally I would have stuck my dormant DR's somewhere in the dark but I've just been too lazy to move them. I guess I can say I was experimenting to see if they'd come out of dormancy any sooner. lol

    Bookmark   December 17, 2012 at 4:45PM
Thank you for reporting this comment. Undo
Loveplants2 8b Virginia Beach, Virginia

Hi Frank,

I personally think that it is each tree has their own personality. SOme of mine still have leaves, some have dropped and then some are putting on more leaves.. What?

LOL.. i just let them do what they want and see what is best for each individual tree. They will let you know. My seedlings from Mark D are all doing great. The grafted ones from Riona are doing soso... some have started showing signs of budding on the top grafted part and others and been quiet.. i did lose one..soft caudex and it was in trouble. I cut off until i could see clean wood and i let it seal and then i repotted it in Gritty and placed it in the greenhouse on heat mats.. i will keep my fingers crossed that i dont lose this one.

I think they are all so different and will come out of their "so called" dormancy at any time!!!

Good luck!!

Laura

    Bookmark   December 18, 2012 at 12:01AM
Thank you for reporting this comment. Undo
rcharles_gw

Laura,
Hope your new graft makes it for you.
With a few of mine that where bare root. They took a while to put out new growth. One started to get very soft and I became concerned.
A gentleman one Adenium group mentioned to me to take it out of soil and soak it in super thrive and then repot. Said to keep it in indirect or shaded place until new growth started and it did firm up and produce new growth quite awhile later.
Maybe not necessary as you have cut it off and repotted.
Rick

    Bookmark   December 18, 2012 at 9:29AM
Thank you for reporting this comment. Undo
Loveplants2 8b Virginia Beach, Virginia

Hi Rick!!

I think this one had already decided to start the rotting process. It was soft and brown and i really didn't have anything to lose. It is still in a shaded area in the greenhouse and i am just letting it decide what it wants to do. I have given her my best attempt to save her.. we shall see!!

The others are looking good and im really surprised to see budding on some of the stems of the grafts already.. these are under the T-5 lights and i have one in the greenhouse only with natural light that is budding as well. This graft came from a friend you probably know who is active on the FPS group. He rec this from his friend in Tawain.

I was so pleased to actually see budding and i could see this as soon as it looked like a small little bump. I had to laugh at myself because i look so intently at these new DR's that i could see this unknown "bump" and get excited...

i know i have it bad when that excites me!!! LOL!!!

Laura

    Bookmark   December 18, 2012 at 10:26PM
Thank you for reporting this comment. Undo
karyn1(7a)

I had a grafted plant that had an area of rot when I received it last summer. I cut it away and dusted with a fungicide and the plant appeared to be doing alright.It never bloomed and wasn't full and lush but alive none the less. It's been dormant for the past couple months but seemingly ok. When I was checking the dormant plants yesterday I found the entire plant rotted. Oddly the only part that wasn't rotted were the roots. I guess the original section of rot was never completely cut away and slowly festered from the inside out.

    Bookmark   December 19, 2012 at 7:03AM
Thank you for reporting this comment. Undo
bronxfigs

Thanks for all the added information...but, there is still no consensus. Each DR seems to have its own schedule....but "something" must trigger the dormancy response. I will leave it to smarter growers than I, to figure it out.

I decided there are more important things to consider, and I will, like others, take my cues from the plants themselves. I find the more I fuss and worry about the plants, the faster they reward my fretful efforts, by dying even quicker. : )

Merry Christmas to all, and thanks for all the help in 2012.

Frank

    Bookmark   December 19, 2012 at 6:38PM
Thank you for reporting this comment. Undo
karyn1(7a)

Frank I received a book from a friend, "Adenium: Sculptural Elegance, Floral Extravagance" for the holiday and it discusses dormancy for each species of adenium. I'll try and take photos of the text but it's too much to type for someone that uses the "hunt & peck" method. lol

    Bookmark   December 19, 2012 at 8:29PM
Thank you for reporting this comment. Undo
karyn1(7a)

Frank I sent the info in an email.

    Bookmark   December 20, 2012 at 9:21AM
Thank you for reporting this comment. Undo
bronxfigs

karyn1:

Thank-you for taking the time to photograph and send all that information to me. Much appreciated beyond words.

Folks...the book said that A.obesum does NOT like to go dormant, and, if it does go dormant, it should be a warm, not cold, dormancy. Cold dormancy periods set these plants back severely, and, that they recover from the shock very slowly. I would take my cues from the plants. The book also notes that A. obesum does not stay dormant for more than a few weeks.

Karyn...good information.

Merry Christmas to all.

Frank

    Bookmark   December 20, 2012 at 5:22PM
Thank you for reporting this comment. Undo
rcharles_gw

Its a wonderful book and everyone that has Adeniums would enjoy it immensely. I bought one a couple years ago and it is a good resource.
Rick

    Bookmark   December 20, 2012 at 8:00PM
Thank you for reporting this comment. Undo
karyn1(7a)

No problem frank. Glad you were able to read it. I do like the book. I haven't done much besides skim thru it yet but it seems to have good info and nice photos. The same person got me another book titled "Pachyforms: A Guide to Growing Pachycaul and Caudiciform Plants". That one has some amazing photos and such cool plants. I want them all!

    Bookmark   December 21, 2012 at 6:19AM
Thank you for reporting this comment. Undo
bronxfigs

Karyn...

I also have the Pachycaul/Caudiciformand book.... and spent hundreds of big dollar$ finding some of the plants that are pictured in its pages.

Very informative guides, and the first books anyone growing fat plants should own.

Thanks, and happy growing.

Frank

    Bookmark   December 21, 2012 at 6:54AM
Thank you for reporting this comment. Undo
karyn1(7a)

Frank that's what I'm afraid of. lol I have about a dozen varieties but saw so many that I'd love to add and some I didn't even realize would develop into "fat plants" like Aristolochia gigantea. I'm hoping that there might be some interesting ones at the show in Jan. Call me cheap but if I can obtain plants thru Bruce's suppliers in the wholesale market it saves me quite a bit of $$$. Many of them will gift me the plants which is even nicer : )

    Bookmark   December 21, 2012 at 8:12AM
Thank you for reporting this comment. Undo
teyo(7b)

If any of you know where one can purchase Mark Dimmit's book with some non-astronomical shipping prices to Europe, i'd be very grateful for the info. I've been after that book for a while but everywhere i looked they wanted 30$ for shipping :( often more than the book itself is priced, it's ridiculous.

    Bookmark   December 21, 2012 at 4:20PM
Thank you for reporting this comment. Undo
Aggie2(10a)

Teyo,

just checked amazon, there are 3 Adenium: Sculptural Elegance, Floral Extravagance books for sale in US all $32.00 with $4.00
shipping!

Aggie

    Bookmark   December 21, 2012 at 6:49PM
Thank you for reporting this comment. Undo
teyo(7b)

Thanks Aggie, but Amazon US won't ship to me, only Amazon UK, and they don't have it :/
There was a guy selling it on ebay from time to time, but he wants almost 50gbp for it.

    Bookmark   December 22, 2012 at 8:46AM
Thank you for reporting this comment. Undo
rcharles_gw

Hi teyo,
It is a wonderful book. It looks as though the best price for this book is in the U.S.. (29.99), but I imagine the shipping would be the one thing that will increase costs for you. I bought mine while visiting the U.S. And had it shipped to me there.
Might be worth a check to see what the cost to ship to you from U.S. and maybe someone could send it to you if shipping is cheaper through a private individual as opposed to eBay or other?
I know the economy in U.S. Is 3.00.
Hope something works out for you.
Rick

    Bookmark   December 22, 2012 at 9:31AM
Thank you for reporting this comment. Undo
kodom087 z9a

I have been wanting that book as well. I have plans to obtain it in the next couple of months. Would love to get it before I go visit my sister in March or April. I've heard nothing but good things about adding this book to anyone's collection.

Kirk

    Bookmark   December 25, 2012 at 9:41PM
Thank you for reporting this comment. Undo
tapla (mid-MI z5b-6a)

There are more than one type of dormancy. A predictive dormancy occurs usually as a result of a change in photoperiod, and the deal is usually sealed by increasing chill. Plants that grow as near the equator as A obesum don't have this type of predictive dormancy (unless they grow at altitude), but they can go into a period of consequential dormancy as a result of being dry for too long, or they can enter a somnolent/torpid state (not a true dormancy) when low temperatures and light levels affect (slow) their metabolic rate.

Al

    Bookmark   January 4, 2013 at 9:52PM
Thank you for reporting this comment. Undo
radovan

I live in Ontario Canada.
My Adeniums stay outside during summer and move into the house during winter period.
My Adeniums did never go into dormancy period and maintained their leafes continuously.

    Bookmark   March 2, 2013 at 2:28PM
Thank you for reporting this comment. Undo
rcharles_gw

I am in Canada also, radovan. Mine are outside in the summer and inside for winter. A few lost leaves for a short period of time and new growth started shortly afterwards and some stayed in leaf.
Seedlings all held their leaves.
Rick

    Bookmark   March 2, 2013 at 6:04PM
Thank you for reporting this comment. Undo
bronxfigs

I just read some of the more recent answers to my original question(s).

I had a feeling that there might be some different types of dormancy, but did not know the technical names for them. Thanks again, Al (tapla).

My DR has sprouted a new set of leaves, probably as a result of a full-sunny position in my warm kitchen. However...the new leaves look streaked, and blotchy. I'll bet it is infected with virus. I will see how the plant looks, and grows, as the season unfolds. Prediction:...another plant that goes into the garbage.

So far, my experiences with growing and buying DRs has been a mixed bag, and on a scale of 1-10, I'd give the whole experience a 4... "10" being "great". I could take them or leave them at this point. Poor availability of named varieties, few USA retailers/growers, ugly grafting techniques, virus infections, no/few stabilized seed strains, etc. Too many demerits. My climate also doesn't make growing these plants any easier, either.

I'll give myself one more season to learn what it takes to grow them successfully...I won't give up without a fight.

Frank

    Bookmark   March 2, 2013 at 7:18PM
Thank you for reporting this comment. Undo
radovan

Hey Rick lucky you, your temps are much much better than mine. I heard you guys in Vancouver can grow much better than we in Ontario. I hope one day you can get me some fig twigs (cuttings) from a very huge black fig variety.
my adeniums are about 18 months old and I do not know are they big and how big are they suppose to be for 18 months of age. is big measured by hight or by caudex width.

Frank, I know you will not give up without fight same as you do for your fig trees. Keep up the good work.

    Bookmark   March 3, 2013 at 2:37PM
Thank you for reporting this comment. Undo
durch

Frank,
Sorry you've been having such a rough time with your Adenium.
It definitely doesn't have to be frustrating, but growing Adeniums in a cold climate definitely has a learning curve.
I'll be happy to give you some advice if you'll email specific questions.
Chris
greenemann@earthlink.net

    Bookmark   March 4, 2013 at 3:05PM
Thank you for reporting this comment. Undo
greenclaws UKzone8a

Hello Durch, and welcome to the forum!

Nice to see you back again Frank, don't give up, us cold weather folks must stick together and beat the curse of the Adeniums...we will grow them!!
Gill from the UK.

    Bookmark   March 4, 2013 at 5:25PM
Thank you for reporting this comment. Undo
bronxfigs

Thanks to my world-wide friends. I will stick it out until the verdict is in. NYC climate, and short-summers has been a challenge, but who knows....maybe this year a silver lining will form around my Adenium, dark cloud. I'm happy that I grow other plants, and, with more success...e.g. figs -(my pride and joy), Cyphostemma, Clivia, and various other fat-plants. All far easier than Adenium...but, not as pretty.

You win some, and you lose some...

Frank

    Bookmark   March 4, 2013 at 7:09PM
Sign Up to comment
More Discussions
Awesome Colour
This is the first time this dr plant blooms. It blooms...
koi3300
Twins!
Two plants from the same seed! I didn't know that could...
Andrew
Unable to log in.
I am very dissapointed that I am not able to log in...
3300koi
Seeds and recommending other plants
Hi, I would love to grow a Desert Rose from seed. I...
dourbest
Adenium leaves turned yellow and all fall off
One one of my adenium plants leaves has turned yellow...
Chris705743
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™