Care must be used when handling sedum seeds. They are incredibly small, thin, and light. You can either purchase them in packets or gather them from your current sedum. Cut off several seedheads when flowering is complete and they are beginning to turn brown rather than green in order to harvest your own seeds. To give the seedheads time to dry, place them in a paper bag and keep the bag in a cool, dry place for at least a couple of weeks.
When they are fully dry, take them out of the bag and thresh (separate the seeds from the seedheads with your fingers) them over a very fine screen (positioned over some sort of bowl), which will let the seeds fall through while holding the other detritus on the screen. Put the seeds in a plastic bag with the name of the sedum and the date they were harvested after you have all of them. Although you can keep the collected seeds in your refrigerator for up to a year, you can sow the fall-blooming sedum seeds the following spring.
When it’s between 40 and 70 degrees Fahrenheit in the spring, it’s the best time to plant seeds. Always use a sterile, fine-textured seed-starting soil blend. Press the seeds into the soil after slightly moistening it, but do not completely round them.
When using flats, plant the sedum seeds in rows and put the container somewhere where it won’t be exposed to wind or cold gusts (either can dislodge the tiny seeds). Typically, germination takes two to three weeks, but during that period, the soil must remain moist.
How are sedums propagated?
One of those essential succulents that can be found in almost any succulent planter is the sedum. Sedums are advantageous in any garden because of the following characteristics. They can withstand extreme cold. They can withstand drought. Pests hardly ever bother them. They create a lovely ground cover. They can be used as hanging plants in containers as trailing plants. There are countless different kinds. It is simple to grow them.
One choice you have is to propagate the sedum by cuttings if you have a plant and want to use it in additional planters or around the yard.
- Cut a 2- to 5-inch portion of the sedum plant.
- Plant the cutting in a well-draining soil.
- Continue to mist the newly planted cutting (water it like you would water petunias or another annual)
- Its roots will start to take hold and grow after a few weeks.
People frequently question us at Young’s, “How deep should the cuttings be planted?” while planting sedum cuttings. Here is a snapshot comparison of shallow vs. deep planted cuttings.
They were each planted in a little pot. The other was buried three inches beneath the first one.
Would the deeper-planted cutting have a more robust root system? We took the cuttings out of the ground precisely 3 weeks after planting them to observe the development of their root systems.
The shallowly planted cutting had a robust and vigorous root system. Compared to just three weeks of growth, it appeared significantly better.
Despite having roots that extended the entire length of the stem on the deeper-planted cutting, these roots don’t appear to be quite as robust as those of the other cuttings.
Sedum cuttings can be planted at any depth, in our opinion. They easily re-root when planted at any depth. We advise putting them 1 inch or so deep. Sedums don’t end up having very deep roots as they age and grow. Many succulents, like aeoniums, have shallow roots in order to absorb the least amount of soil moisture.
A sedum plant spreads roots from the middle of the stem as it grows, creeping along the ground. These roots serve as the plant’s anchor and aid in supplying it with the nutrients and water it needs to grow. Sedums form vibrant, distinctive ground covers that look great in any yard or container.