Flower advice please

[Riddlediddle]

Hello
Ive bought a lovely tall black planter to sit next to my front door. We have a black front door with blue glass so i really want to plant some blue flowers in there....except i am an absolute novice garderner and have no idea what blue flowers could go in the planter which would be easy to look after (i.e. that i wouldnt kill after a week!) Any advice would be very welcome. Thank you!

Anyone?

There are blue Orchids ? They are very easy to look after ! They just need 2 ice cubes of water a week!

Is the planter inside or out?
If its outdoors, agapanthus would look lovely.

Outside? For now or summer? Is it on a sunny spot?

Sorry i should have said it is for outside. It isnt south facing but does get good afternoon to evening sun. Ideally id like it from spring through the whole summer but no idea if such plant exisits?

Off to google your suggestions now thanks...

Would 'forget me nots' work at all?

Maybe some lobelia, surfinia come in shades of blues/purples too

Would 'forget me nots' work at all? They're not very tall. But other flowers in the forget-me-not family would. Try Anchusa capensis

I can't think of anything which would work all year round - would it be possible to get some pots which would fit into the planter which you can swap in seasonally?

If so then definitely agapanthus for their season in summer.

For spring, a bulb 'lasagne' with various of the blues eg grape hyacinths, iris reticulats, and I'd mix in some whites - narcissus Thalia, some white tulips - and then forgetmenots to spill over the edges.

I've never seen a blue surfina... the ones described as such look distinctly purple to me. That's the case for quite a few plants described as 'blue' - I'm assuming you want pure cobalt or sky hues?

There are some pure blue 'tub and basket' annuals which might be good in the summer before and after the agapanthus - lobelia, and ... can't remember the name but it's as blue as medieval stained glass ... and again, I'd mix with whites.

You could plant a mixture of annuals (you buy each year as they die each year) and perennials (you buy once and the live for many years).

You put the smaller plants at the front and the larger ones at the back.

Look up when they flower so all year round you’ll have colour, as if you pick things that all flower in June - July, you’ll have nothing the rest of the year, just greenery.

Most people plant bulbs like daffodils or narcissi (small daffodils) as they flower in February and if you mix in a few English bluebells, blue primulas and grape hyacinths you have your blues. They die back but you leave the bulbs in the earth as they’ll come up again next year. In between those bulbs or underneath or on top of them you then plant other things that will start growing after that and they then flower etc. Gives all year colour.

Forgot to say: Agapanthus are beautiful and tall. I’d put them at the back. A trailing lobelia is always nice at the front cascading down (annual so you buy them annually and bin them once they get scraggy).

Spring planting could be grape hyacinths and blue primulas.

Oops already mentioned, there are blue cranesbill geranium, Johnson’s Blue for one, and blue irises.