The Q&A Archives: autumn joy sedum dying

Question: I received 2 autumn joy sedum plants from two different people. I planted both next to each other in full sun, in a bed that doesn't recieve much watering. Both got blooms and only got to a lilac pink before they died. They're supposed to turn much, much darker in color. I also have black eyed susan, stella de oro daylily, feverfew, and I put darwin tulips for next spring in. Is my bed too small and should i move them to a more spacious location ( bed is 6ft by 2 and a 1/2ft). Or when I was watering to establish the tulips did I overwater?

Answer: Sedum Autumn Joy takes its direction from nature and dies when a heavy frost occurs. Some years this is earlier in the season than others so some years the plants will have enough time to develop deep flower color and other years they won't. There's nothing wrong with your plants, they simply did not have enough time to develop the rich dark color you expected. Next year may be different.

A 6 by 2' bed should provide adequate room for the plant combination you have. When things get too crowded you can dig and divide the plants, amend the soil, then replant.

Best wishes with your garden!

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