Does anyone have personal experience growing kangaroo paws?

Yes and it is extra invasive. I will Never get rid of it. In one wintered over plant area there may a hundred bulbs beginning to grow and so it goes. If I were writing a column about the worst plant to mess up a garden it is the kangaroo. Now, I tried putting some of the bulbs in a barrel and they never thrives. I just keep pulling them up.

They need full sun and very dry/drought tolerant conditions; is it indoors? outdoors? where do you live? how long have you had it? Signs of Ink Spot disease? The fungus manifests itself as blackening of leaves and stems,means overwatering. Here's great info. on care after blooming Kangaroo paws are very giving plants when they flower, but flowering comes at a cost to the plant in energy. So once the stems die back, plant tops can look sick or half dead, when in fact it is just full of dead stems and browned off foliage. https://www.gardeningwithangus.com.au/renew-your-kangaroo-paw/

This site has lots of information on Kangaroo Paws. Good luck!

https://www.gardeningknowhow.com/houseplants/kangaroo-paws/kangaroo-paws-houseplant.htm