Irish climate - Blue and yellow trees

Hiya guys, bit of a random one.

I have some land directly opposite our football pitch and our team colours are blue and yellow I'm just wondering are there any frost hardy yellow and blue trees that I could grow.

I have grown thousands of oaks from acorns so I have no problem planting trees I'm just looking for suggestions of trees that would survive in the Irish climate.

Any suggestions appreciated

Laburnum is very yellow when it's flowering, but it's poisonous so mustn't be planted where livestock can reach it. It grows well in Wales, so I should think it would like Ireland too.



Blue might be trickier...

Does it have to be a tree or are bushes fine too? (Yellow forsythia, blue lilac, vitex and buddleia...)

Paulownia is kinda-blue - the exact mix of white-blue-violet notes depending on the cultivar (ours are supposedly Shantong sterile clones and are quite pale). The wood and the flower buds formed in the autumn can usually take down to -15 C but spring frosts are not very welcome.

Thanks for the suggestions guys.

The field would be grazed by sheep so poisonous trees are out. Perhaps a blue tree is a bit of a reach lol.

Mimosa might do for yellow?

https://www.google.com/search?safe=active&rlz=1C1CHBF_en-GBGB848GB848&biw=1920&bih=937&tbm=isch&sa=1&ei=f4jWXL2YHZXFxgPEz5_ACw&q=mimosa+bush&oq=mimosa+bush&gs_l=img.3..0l2j0i24l2.32579.33168..34080...0.0..0.59.238.5......1....1..gws-wiz-img.......0i67j0i8i30j0i30.dhZc3VWCv4U

You'd have to check on hardiness, but it should be frost resistant.

I'm wondering would I be better off finding some large bushes that have blue flowers and pruning them into a single 'tree' shape with a post for support.

Ceanothus will make a lovely blue hedge, and it comes in any hue from sky blue to deep indigo.  In theory you can make a tea substitute from the leaves.  I like the yellow of my cornus mas (cornelian cherry) which yields tasty cherry-like berries, but it blooms really early.  One of my trees bears yellow fruit, not red, so if you get that + a late-blooming ceanothus you might even get the two colors at the same time.

Edited:  Whoops, missed that you were looking for full-sized trees.  Neither of the above will get much above 2 meters tall, sorry!

Morfydd St. Clair wrote:Ceanothus will make a lovely blue hedge, and it comes in any hue from sky blue to deep indigo.  In theory you can make a tea substitute from the leaves.  I like the yellow of my cornus mas (cornelian cherry) which yields tasty cherry-like berries, but it blooms really early.  One of my trees bears yellow fruit, not red, so if you get that + a late-blooming ceanothus you might even get the two colors at the same time.

Edited:  Whoops, missed that you were looking for full-sized trees.  Neither of the above will get much above 2 meters tall, sorry!

All I need is to protect them from grazing sheep, so no low branches.

But I can always wire of a strip if I can find some nice bushes.