The Q&A Archives: Growing Alstromeria

Question: I bought an Alstromeria from you several years ago. I got a few blooms here and there but nothing like it was when I got it. How do I fertilize or take care of this to get more blooms? I take indoors for the winter.

Answer: Alstroemerias are summer-flowering herbaceous perennials that are generally not hardy in your region although one variety, A. aurantiaca, will survive (with protection) as far north as southern New England.

Alstroemerias prefer regions with relatively mild winters and not-too-hot summers.

Sinc you bring the plant indoors, try to keep it in a bright but relatively cool spot (50-60F) and water sparingly, but don't let the soil dry out completely. The foliage should naturally die back and the plant will enter a dormant phase. Once the plant is dormant, cut back on water even more and keep the container in a cool, shaded place. When you see sprouts, move the plant to a bright location and increase water. With bright light or morning sunshine outdoors, your plant should bloom nicely for you.

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