I see cut/bunches of roses and there are roses bushes.
Is it possible to buy potted Alstroemeria?
Thank you for contacting Toronto Master Gardeners. Peruvian Lily or Lilies of the Incas (Alstroemeria) grow as perennials in South America from tubers and despite its name this plant is not a true lily. In Toronto we frequently see them as cut flowers in bouquets due to their beautiful blooms – so you have raised a question which made me curious!
In my research on the internet, I discovered that you can buy Alstroemeria as plants, seeds and bulbs from Canadian stores. Unfortunately, it is a policy of Toronto Master Gardeners that we do not recommend specific retailers.
This 2019 Bulletin from the Canadian Botanical Association is an interesting read. It provides an in-depth description of this South American plant, including its history, cultivation, and directions about how to grow it outdoors. Alstroemeria is not ideal to grow as an indoor houseplant as it requires so much sunlight.
If you plan to grow Alstroemeria outdoors, bear in mind that the hardiness zone for growing this plant is Zones 5-9 and it requires 6-8 hours of sunlight per day. The Spruce also gives very specific instructions for growing Alstroemeria which you might find useful. Outside plants will need special care to survive our Toronto winters. This includes digging up the tubers before the ground freezes in the fall and storing them in a cool, dry place during the winter. They can be planted again in the spring once the soil has warmed up to 15 degrees Celsius. Please note that this plant is mildly toxic to humans as its sap can cause contact dermatitis.
I wish you all the best success with this growing project. I might just try growing Alstroemeria myself!