If you tell me that, then I know you are not a real gardener.
Real gardeners also have indoor plants. Or houseplants. Or house plants. Whichever you prefer.
Real gardeners do not stop gardening when the garden outdoors goes dormant. We don't. We can't.
Even if we don't intend to have plants indoors, we somehow, somewhere, end up with plants in our houses.
It just happens.
If you are thinking right now, "well, I'm a real gardener and I don't have indoor plants", then you are missing out. Go get a plant and grow it inside.
Grow it even if it isn't a traditional house plant.
It will grow out just fine. I recommend coleus as a pretty-darn-easy-no-fail-test-of-your-gardening-abilities house plant.
Or grow a fibrous-rooted begonia.
Speaking of amaryllis, now there's a plant even a fake gardener can grow indoors. I found some that were "just the bulb" at the big box hardware store, so I rescued six of them.
By the way, I usually don't buy the amaryllis bulbs with the pot and the compressed coir fibre "soil" that comes with them. The plastic pots are too lightweight to support the plants and will often topple over. Forget that coir soil, too. But, if that's all you can find, get it anyway, and pot it up with better potting soil in a more substantial container.
I've got some old plants in my house.
But it isn't the oldest plant in the house, not by a long-shot. The oldest plant in the house is the night-blooming cereus. I've had it since 1987, and before then my Dad probably had it for a good 15 years which makes it... after a bit of ciphering, I believe this particular plant has been grown indoors by me and my Dad for 42 years.
It's also the ugliest.
I count on my house plants for a few odd blooms through the year. In fact, this crown of thorns, a Euphorbia, is always in bloom.
A newer bloomer is the Kalanchoe.
I could do a whole post on funeral planters, and just might because I often get emails or urgent voice mails from co-workers who received a funeral planter, brought it in to the office, and suddenly it isn't doing so well. I visit the plant and the person and perform a triage of sorts... Hey, you can't trick me into giving away my secrets for caring for funeral planters! I'll provide details in another post this winter.
Now, where were we? Oh, we were going to also mention about garden fairies who become house fairies if you have enough plants indoors. I'll save that little tidbit of information, plus tips on attracting house fairies, for another post.
In the meantime, if you don't have house plants, and you insist on calling yourself a real gardener, please go get a house plant to legitimize yourself.