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Rollinia

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Grace starts with ...
My Rollinia has fruited for a few years but the fruit doesn't ripen properly. They go from green to black on the outside and the interior remains hard and unpalatable.
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Grace
Lockyer valley
11th September 2008 6:45pm
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Kath says...
Grace, rollinias are very tropical trees and as the fruits ripen in the winter it could be that your winter temps are not warm enough to ripen the fruit. If your tree is small enough you could try constructing a poly house over it out of poly pipes and plastic and see if this helps.
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Kath
Cawongla
12th September 2008 11:31am
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trikus says...
Bought this today at the local petrol station .. I usually do not go there as the next one always has cheaper fuel . Lots of other fruits , .30c Sapodillas a large Papaya , nearly 1.5kg for only $2 . This perfectly ripe Rollinia was only $3 and was 1.8 kg , half gone already .
Pictures - Click to enlarge

Picture: 1
  
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Trikus
Tully
20th September 2008 7:43pm
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Tran says...
Hi Trikus,

It would be wonderful if you could tell me where about is this station please. I am going your way in December. By the way, your picture of Salaks look delicious. Will it be available in December? When is the fruiting season for this fruit?

Many thanks

Tran
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Victoria
21st September 2008 8:37am
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trikus says...
Tran , its the one just over the bridge on the north side of Tully. Actually the last one , first is at the 2nd set of lights , few 100m then Shell , then the cheap fuel , a few more 100m then the large one .
That Salak picture was not mine , but I think they bear all year around . I had some from S wallichiana in June , and a mate some on the same a few months early . Its only the keen palm collectors that have them .
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Trikus
Tully
21st September 2008 4:30pm
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Tran says...
Hi Trikus,

Many thanks for the advice. I am very much appreciated. I have noted down your information in my note book
for December trip. I hope to get some fruits like rollinia and Sapodillas and some tropical fruits from that petrol station.

Regards


Tran
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Victoria
21st September 2008 4:37pm
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BJ says...
My rollinia has thousands of fowers, but in the last few weeks they have been turning to black jelly and rotting away before opening. Does anyone have any idea what is happening? The tree is in active growth and seems fairly healthy otherwise, other than one small branch that has died back recently.

It is in full sun, pretty well drained spot, nearing 3yrs in ground, pruned to 8ft high.
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Theposterformerlyknownas
Brisbane
8th December 2011 1:16pm
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trikus says...
I just noticed a few more fruit set on my tree . there is one hanging on that will ripen very soon . My poor tree has suffered from Yasi and weeds choking it .
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trikus
tattered tropics
9th December 2011 6:40pm
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amanda says...
BJ - do u think it may be a fungal or bacterial problem? Can u post a pic? Has it been too damp or dewy?
I don't know anything about the problem but maybe someone will have seen it b4..?
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amanda19
Geraldton, Mid West WA
9th December 2011 7:01pm
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trikus says...
Several small fruits set in the last few weeks , they should ripen before winter up here .
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trikus
tattered tropics
9th December 2011 8:02pm
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John Mc says...
I am trying to figure out how to hand pollinate them but it looks like it's unnecessary? None set last year although there's far more flowers and humidity this year. I have a very young grafted tree close to other Annonas that fruit well.
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JohnMc1
Warnervale NSW
10th December 2011 9:09am
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David says...
Hi John Mc, i could not beleive my luck ,went to the rare fruit meeting on Wednesday this week and won a Rollinia seedling in the raffle, so that offer of scion material just might come in handy when your ready thanks again. David
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David
Brisbane
15th June 2012 8:54pm
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John Mc says...
That's great, my Sputnick is still setting fruit, don't know how they're going to fare over winter, might be a problem, this is the first year fruit is staying on, up to the size of a golf ball so far, even that one was a late setter. I think the fruit will set earlier and the tree will perform better as it gets older. Very fast growing grafted tree, even outpeforming the growth of the seedling tree of similar size next to it.
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JohnMc1
Warnervale NSW
16th June 2012 7:58pm
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David says...
Good to hear, Mike made a pertinant comment some days past , he said that the tropicals gain some cold tolerance as they grow older ,so looks like time is on your side John Mc. Im amazed at your selection of trees that far south and the great success your having, makes my bitching about the cold here seem stupid.
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David
Brisbane
16th June 2012 10:15pm
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MaryT says...
David I've been to Brisbane a few times and in my opinion you guys do not enjoy better weather than we do in Sydney. In fact I think yours is more extreme, though I must admit Sydney weather has become more changeable.
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MaryT
Sydney
17th June 2012 10:07am
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David says...
Hi Mary ,been here now 22yrs and from my point of view, having lived in Sydney from 79-85 ,can remember those really hot days above 35c-40c, which fortunately we rarely see in Brissie.The weather here often gets cold in May then warms up again June then we hit the coldest month July , but for the tropicals here in Brissie its August which does the most damage, because of westerlie winds and low humidity, really kncks things around ,fortunately with maturity comes tolerance of lower temps, but its getting to that point that is the hardest.
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David
Brisbane
17th June 2012 10:40am
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MaryT says...
David, We still get those high temperature days occasionally but bad weather rarely lasts and more often than not a hot day is followed by a cool night. I'm looking at a bright blue sky so should be outside. I'm going to check out another market. Yesterday was dismal and the pickings few.
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MaryT
Sydney
17th June 2012 10:51am
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VF says...
Hi David, I'm having a bit of a play with some Abiu seedlings at the moment and there's already some notable diff. in their cold tolerance - had 6.5C a couple of nights running a couple of weeks ago, and some cool day temp.(13C) last week X 3. A couple have remained bright green, some are lime-green, and one has really yellowed off - just shows the variability you read about in seedlings.
I also have a cold-hardy soursop bought from Daley's (called 'Kyogle')- with the same temp's as above it hasn't become deciduous yet, and to my wonder it's actually starting to grow small branches in the junction of mature leaves and branches. I did NOT expect this. Admittedly, the plant is in pot still, sheltered from worst wind, but is outside with no special cover. Not writing this to gloat, just to show that there are some hardy tropicals out there worth trying. (Might be writing something different though by end of August, but keeping fingers crossed).

BTW, if the Abiu's survive & thrive by the end of winter, you're welcome to some.
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VF
Wongawallan
17th June 2012 11:49am
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David says...
Thanks VF,min temps here right now are 12c-14c,but this comming week expected to go into single figures, noticed today some of my seedlings are suffering with the low humidity and cooler temps. Lived in sydney many years ago and tried soursop ,but with no luck ,mind you my knowledge then could be written on a postage stamp.In a pot is vastly diff to in the groud ,good luck getting them through the winter.I do have some Abiu seedlinds from a good friend up north, just waiting for the temps to rise in Sept, to plant them out. I also have the soursop you mentioed from Kyogle, it currently is 6m high, waiting to have a haircut to bring down to size, it to suffers in the winters here,drops some leaves, but is generally ok.Good luck.Nice to talk keep it up.
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David
Brisbane
17th June 2012 1:06pm
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VF says...
Thanks David, and good to hear about your Soursop, gives me more hope. 6m is a good size, so can't be suffering too much. Any luck with flowerin/fruiting yet - must be close if hasn't already?
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VF
Wongawallan
17th June 2012 5:19pm
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David says...
Is grafted so has already fruited,not bad, meant to be low seeded, seems also to flower and fruit at a slightly diff time to the seedling tree which is almost 20yrs old
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David
Brisbane
17th June 2012 7:16pm
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BJ says...
VF, I've also got the 'kyogle' guanabana. It is a machine as far as flowering and leaf production are concerned. it never goes totally dormant, but looks a bit sick late july through late august. I strip all the leaves of the plant at that stage. My plant is a few years old and 2m tall, but i prune hard and have moved it around a bit (it doesnt even loose a single leaf if moved in summer rains). its loaded with flowers now (100 or so), but i dont know if it will set a fruit - its probably too cold at flowering time to set fruit :(
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Theposterformerlyknownas
Brisbane
17th June 2012 7:21pm
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VF says...
David, I'm now officially envious (in a good way!)
BJ, thanks for the helpful info. When you strip the leaves, do you use the 20% urea concentrate I read growers use on Atemoyas, or is there something else? Thanks. BTW good luck with the flowering.
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VF
Wongawallan
18th June 2012 7:22am
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ThanhT says...
Hi,
The attached are pictures of grafted young sick rollinia. Around September the tree had a lot of new branches/leaves but the branch length was just about 10cm, then it dropped. Now it has only 3 braches left. The leaves were very light green and curve. When I touched the leave lightly, it fell off and easy to crunch. Do you know what is causing this and how to fix it?
Thank you.
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Picture: 1

Picture: 2

Picture: 3
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ThanhT
FAIRFIELD EAST,2165,NSW
8th November 2014 2:24pm
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MaryT1 says...
Hi ThanhT I don't grow rollinia so I can't say what's wrong with yours if it's a rollinia problem. However I see in your pics some plastic at the perimeter of the plot and suspect it may have something to do with your sick tree?
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MaryT1
Sydney
9th November 2014 8:53am
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denise1 says...
Dig down to see the soil condition. Has it been overwatererd, Is the drainage good. Is there too much compost. Is there plastic underneath stopping drainage. Did it get really cold in the winter.
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denise1
auckland NZ
9th November 2014 11:24am
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sternus1 says...
Had the same problem with my grafted rollinias, all three died. Never figured it out. Have gone back to seedlings which grow considerably faster, and they grow pretty true to type anyway really. Much, much hardier than the grafted trees.
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sternus1
Australia
9th November 2014 5:59pm
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JohnMc1 says...
Yes I agree seedling rollinias are hardier than grafted varieties. The only problem is, my seedling has not produced a single flower in 5 years. I have had fruit from the Grafted variety but it has dead branches all over.
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JohnMc1
Warnervale NSW
9th November 2014 8:24pm
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The poster formerly known as... says...
My Rollinia (seedling) fruited second year in ground. Grows like a weed, but also throws lower limbs every year. I just cut the top off and let it resprout in spring from the spots right next to where the past season's branches grew. Have a few thousand flowers now and it smells terrific! I highly recommend hand pollinating the fruit in spring to get a good summer crop. Many, if left alone, will only set fruit later in summer when humidity and water supply is higher and the fruit often wont come off until winter or the next spring and tastes horrible. Best to knock these off and get fully sweet summer fruit.
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Theposterformerlyknownas
Keperra
10th November 2014 11:16am
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sternus1 says...
John shading could be your problem with fruit set. Mine are in full Blazing sun and do really well in these conditions. Might be something worth considering.
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sternus1
Australia
10th November 2014 9:11pm
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trikuslaptop1 says...
extra zinc helps with fruit set .. mate put a heap of old galvinised iron over the top of mulch around his tree and has been rewarded with heaps of massive fruits this year
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trikuslaptop1
wet tropics
17th December 2015 10:53am
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