No it doesn't exist, neither a cherry nor a pear.

I feel I just have to mention that these requests for best this and fastest that might not really be the most successful or enjoyable way to go about building a garden you can love, Henry. Just to state the obvious, someone's 'best' may well turn out to be rubbish in your garden because all gardens are as unique as their owners. I am not being sniffy here but I do think you are missing the point of finding out what will do best for you...it really isn't a case of having the biggest, most floriferous, fastest growing plant...it is a slow journey of discovery and an investment of care, love and time...and $$$ of course, but you can do an awful lot for free if you are patient. Best of luck.

Henry asked a legitimate question. Condescension generally doesn’t elevate or educate.

What about halls hardy almond? Does that bloom consistently?

I'm not sure what you mean by 'bloom consistently' and I have no knowledge of that cultivar but I'm pretty sure neither it, nor any other ornamental flowering tree, is going to grow 'at least three feet a year'. Anything growing that fast is either going to be a herbaceous perennial or a tree you really don't want like Ailanthus altissima. A pollarded tree like Pawlonia or Willow could do it but would need repollarding regularly. Coppiced Buddleja would do it in a conducive climate but perhaps not in z6.

Catalpa grows at least that fast. The end result isn't small, though.

Henry Z, what qualities are you looking for in a tree?

Spring flowers that are light pink, max height of 20 feet, and decently fast growing

A purple leaf plum, Prunus cerasifera, could work. It has a medium rate of growth (12-18" annually) after establishment and height is just about right. But the tree tends to be shortlived and not without all the many Prunus problems.

Given what you have said elsewhere, I'd go for one of the 'Little Girl' magnolias. I have 'Betty' which I don't think is a common one. There are also pink dogwoods - kousa, florida, and hybrids. Redbuds may count, depending on your definition of pink. Then there are large shrubs which can be grown more or less in tree form.

Would a crabapple tree work for you? Pink flowering in spring and grows fairly quick.

Oh, I LOVE crabapples🙂

Crab apple and the other suggestions are all fine, but none of them grow three feet a year. A third or half that if you're lucky and have really great growing conditions. It would be helpful to have more information on your location, conditions and aspirations. Photos would be great.

Eastern redbud is a fast grower and a lovely tree. Not 3 feet a year though.

What type of photos are you suggesting?

Catalpa is an under rated tree. It is relatively fast growing. It has pretty pink flowers in the spring that are pleasant smelling, and can live at least 60 to 80 years old. It is not a small garden tree as mature the trucks are near 24" in diameter over 50' in height.

Certain crabs will grow a solid two feet per year

As for pix, show where you want to plant and how it relates to the rest of the landscape.

tj

For me the choice would be Liriodendron tulipifera

Those get GIGANTIC

"Those get GIGANTIC"

Right you are. In your 24 word OP you made no mention of height limitations. I can't name any tree that gros 3' per year that doesn't get tall,

Check the 8th message

The growth rate requirement has gone from 3’/year to “decently fast growing,” which I see as progress. The 20’ height requirement will limit you to trees such as Malus, Amelanchier, Cercis, Cornus, etc. You might want to consider visiting an arboretum or botanical garden to see if there’s something that grabs you.

Henry, I have to ask, why is the rapid growth rate important to you?

sorbus...but would not be happy in wet clay. The rowans are great 4 season trees - lovely blossom( s.cashmeriensis has the requested pink blossoms) , interesting berries (from deep reds through to creamy white), superlative autumn colour and graceful architecture. My favourite small tree.