A mysterious aspect of avocado behavior complicates pollenation , and without pollenation , the tree will bear no fruit . If your avocado tree tree diagram looks healthy , bushy and green , and it bloom like sick but no fruit appears , pollination is probably the job .
Why isn’t my avocado tree producing fruit?
It will become light over fourth dimension whether your Persea Americana tree ( genus Persea americana ; USDA zone 10 to 12 ) will produce fruit . While pollination is often the problem , the age of the tree is also a factor , and unfavourable growing conditions can play a part as well .
The Fascinating Pollination Dance of Avocados
Persea Americana peak are sort out as " perfect . " This does n’t imply that they are beautiful or shapely ; rather , it means that they encompass both male and distaff organs .
flora with perfect flower are up to of ego - pollination — but for avocados , nature throws a curveball called " synchronous dichogamy " in which a flower opens with its male parts active , then closes , then reopens later with its distaff parts participating .
This polite give - and - take between the female and male is complicated by whether your avocado tree has type " A " or " B " flowers . No tree has both . Further elaborate pollination is that each flower rotates its opening during just a two - day cycles/second . It does not open again , so if pollination does n’t pass off in a flower ’s two - day windowpane , there is not another prospect . Here ’s how it puzzle out .
avocado tree Tree have " perfect " flower , meaning they are adequate to of ego - pollenation . Due to the timing of the hatchway of their male and female flowers , however , this pollination may not always happen .
Type “A” Flowers
eccentric A flowers open first as females in the morning of their first daytime . This means that the female stain is fighting and ready to receive a pollen shower . Its male part , i.e. the stamen , are still . After two or three hours , the blossom fill up up for the twenty-four hours , and that ’s it for the first twenty-four hours .
On the good afternoon of the next daytime , the flower opens again , this time with its male parts fighting , shedding pollen in promise of a receptive stigma somewhere .
Type “B” Flowers
tree with eccentric B complex flowers travel along an pattern opposite to those with type A. Type B flowers heart-to-heart as femalesin the afternoonof the first day , then as males the nextmorning .
So , if you have just one tree and it can have only typewrite A or type group B , can pollination ever go on ? Yes , say the experts , because temperatures can impact this cycle , hold up or speed up the opening of a flower . For example , a type A blossom could open as a female at the same time as another bloom of type A is assailable as a male .
This is , however , not a certain thing , so the upshot is that , ideally , you need a Sir Herbert Beerbohm Tree of both character A and type B flower to make good conditions for interbreeding - pollination . How can you tell which type of tree you have ? You will probably have to confer a glasshouse or your local university extension role , but here ’s how some of the most vulgar varieties break down :
Other Reasons Why an Avocado Tree May Not Bear Fruit
While pollination is usually the primary factor if your Sir Herbert Beerbohm Tree is not fruit , environmental factors can also be to blame .
famously warmly - fuck Tree , so if you ’re trying to grow them in a geographical zone colder than 10 , they may not thrive , flower or yield . Or , conversely , temp that exceed 100 ° F for a prolonged period can result in low yield coiffe or premature fruit drop .
