Peanut Butter tree...B.glandulifera

[Jacques33degrees]

Why does my 4 yr old peanut butter tree have tons of flowers but none of them opens and set fruit... They just shrivel away and fall off. Lots of sun...mulched in 40 gallon pot. Zone 10a.

[So_Cal_Mike]

I believe male and female flowers are born on seperate trees... do you only have the one tree?
(The above is incorrect info)

[Jacques33degrees]

Yes, only one tree. I could not find much online about pollination. 

[BrianL]

I've never heard of Peanut Butter Trees being male and female.  I thought flowers were perfect? 

[Mango Stein]

The genus Bunchosia does not have dioecious species as far as I know. Most species are quite self-fertile, however I believe one has a high rate of self-sterility: Bunchosia armeniaca. This is the one with taco shaped leaves that have straight edges. https://www.youtube.com/watch?v=VmgWjHfz3Kc
The more common B. glandulifera (with wavy edge leaves) should be self-fertile. These are sometimes mixed up. You could as an experiment hand-pollinate using pollen from another tree. Any other peanut butter tree should work, and maybe even pollen from acerola could work.

[achetadomestica]

I have B argentea and I got fruit the end of the first year off a seedling
and fruit off a cutting grown one also the first year. The first year the cutting
flowered first and set without the other tree flowering? I noticed this year being their
second in the ground, in the spring the trees flowered heavy and no set. They
continued to flower and starting setting with the onset of the humid summer?

The type I have are very prolific. PM me if interested in seeds,

[So_Cal_Mike]

I've never heard of Peanut Butter Trees being male and female.  I thought flowers were perfect?

I stand corrected! I guess I was given false information... sorry for passing it on.

I acctually didn’t buy and grow the peanut butter plant about five years ago because I was told it needed a male and female tree, and I didn’t want to waste the space on a male tree. Maybe he was just trying to get me to buy an extra tree. :-/

[Coach62]

Mine has bloomed a few times this year and has yet to set fruit. It looks happy and healthy and is growing well. I was thinking of either giving it some more potassium or using a bloom booster fertilizer.  I think potassium may make more sense.  I did think one or two fruits had set, but they disappeared. Could have been a bird or something also.

[Jacques33degrees]

Here are some pictures....can anyone ID variety from just looking at leaves? Problem as you can see, flowers never open up, just dry out and fall off. Would higher humidity work?

[achetadomestica]

Is this the first time it has flowered?

[Jacques33degrees]

2nd year flowering.

[sunny]

Mine had fruit but only 1 time...now it  wont give fruit anymore...

[Jacques33degrees]

Will more humid condition work for flowers to open instead of shriviling up?