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Planting, Growing, and Caring for Sedums
Planting
Sedum enjoy full sun, but will tolerate some shade. If growing sedum in an area that gets long, cold winters (Zone 5 and colder), plant in full sun to improve overwintering capability.
Sedum grows well in poor or sandy soil, but it鈥檚 important to have well-drained soil to avoid fungal diseases. It is very susceptible to root rot if grown in soil that holds too much moisture. Overly rich soil can also encourage leggy growth, which can result in upright sedum varieties becoming top-heavy when they bloom.
When to Plant Sedum
- Sedum is usually bought in plugs or pots and transplanted into the garden. The best time to plant sedum is in the spring鈥攁fter the threat of frost but before the heat of summer kicks in.
- Plant sedum seeds in early spring in well-drained, average to rich soil. (Learn more about soil amendments and preparing soil for planting.)
How to Plant Sedum
- Space plants between 6 inches and 2 feet apart, depending on the variety. Low-growing sedums will readily spread to fill any gaps, while upright sedums tend to stay more compact.
- Planting full plants or divisions: Dig a hole deep enough so that the top of the root ball is level with the surface of the soil, then place the plant in the hole and fill in around it. Be careful not to bury the stems of upright sedum, as this can lead to rot.
- Planting cuttings: Like other succulents, sedum can be readily propagated via cuttings. Simply place the cut end into soil, and the cutting should have no trouble rooting under proper lighting and watering conditions.
Growing
- Once established, sedum plants require little care. During the summer, check your plants regularly to make sure they are not too dry and water (sparingly) if needed. As long as your area gets rain every couple of weeks at the least, sedum shouldn鈥檛 need any extra watering.
- After flowering, cut back the plants to maintain their shape or contain them in one area.
- Tip: For added winter interest, leave the flowers of upright sedum alone after they bloom. They will form attractive seed heads.
- Remember to divide your plants in the spring or fall to control their spread. Throughout the summer, divisions and cuttings root readily.
Catherine Boeckmann
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Is there a herbicide that will not harm sedum and still kill grass and weeds?
We don’t recommend using herbicides. You can pull the grass and weeds by hand and then add mulch around the sedum. Some folks use boiling water or vinegar on the unwanted growth but you have to be careful not to get it on the sedum or its roots.
I have the goldenglow stone crop and I was wondering how I could clone or propagate another one from the plant I have...
These are easy to propagate. Cut a stem or two from the mother plant. Remove the leaves from the bottom half of the stem. Put the stems in a glass of water and place in a sunny spot. After a few days or a week you should see new roots on the stems. You can then put the stems in a pot with soil.
Advise please
Hi Jim,
The stalks can be pruned anytime after the blooms fade. Som gardeners recommend to leave them on as long as possible. Birds are attracted to the seeds. In late winter or early spring cut any remaining old stalks back to about 3 inches.
I was given a serum plant for Easter, thought it was an indoor house plant, is there a difference. Was wondering if it would survive outdoors.
I would like to use cut sedum in a floral design. How long can it live out of water before it begins to die?
I purchased 2 Red Sedum by mail, and they said they would ship at the appropriate planting time.
By the time they arrived, the ground was frozen.
The plants are dry, can I out them in water inside to get them ready for spring planting?
We suggest that you return the plants and get your money back. There is no guarantee that the plants will revive if put them in water or moist soil indoors.
