I’ve bought 3 Goldstrum plants this morning... advice please

[Jedimastermama]

I don’t know very much about plants, but I am learning. This morning whilst out with the children, we ended up looking at the flower stall. These flowers caught my eye and I thought they would look fantastic in my window box... a great splash of colour.
However, I’m now looking online and I don’t think I can plant these in my window box.

Suggestion greatly appreciate. Our garden soil is not great. So should I plant in a large plant pot out the back?

Thank you

Is it the Rudbeckia Goldsturm (Black-eyed-Susans)? If so, I think they're a bit tall to go in your average window box, mine are a couple of foot tall. They're not ideal container plants as they're deep rooted, but if you got a large and very deep container, with good drainage I'd imagine they'll do ok. Maybe put some spring bulbs in there as they do die back in the winter and don't come up again until the summer. Fantastic plant though, mine make me smile everytime I look at my border.

Hi Stefoscope,
Yes, Black eyed Susan’s. I decided to plant on garden bed. I mixed in a lot compost with bed soil and planted. I looked online and saw they grow a fair bit, so window box wouldn’t work.

I was going to order a very large garden tub and plant but it would take a few days to arrive.

Well they look lovely when I look out my garden window in the mornings, adding great colour to the garden.

Thank you got your reply.

Happy gardening