- Sedum mostly hardy - depending on origin
- Protect potted sedum in winter
- Properly overwintering a sedum plant cultivated as a houseplant
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The stonecrop - often also commercially available under the names "stonecrop" or "sedum" - is the perfect plant when it comes to embellishing unsightly corners of the garden. The popular perennial is extremely robust, as a thick-leaved plant it tolerates prolonged drought very well and is usually both winter-hardy and frost-hardy. However, this does not apply to all sedum species.
Most types of sedum are hardy
Sedum mostly hardy - depending on origin
The genus of sedum (Sedum) includes about 420 members that are found worldwide and in almost all climatic zones. As a result, of course, not all species are really hardy, especially the sedum plants from the Mediterranean and subtropical regions are not used to German winters. However, this applies to only a few commercially available Sedum species, because most of the sedum plants we find are extremely robust and easily tolerate temperatures of up to -15 °C and more.
Protect potted sedum in winter
Regardless of whether it is hardy or not: Stonecrop cultivated in planters should always be protected when they spend the winter outdoors, for example by wrapping the pot or bucket in insulating material. You should also place the planter on a styrofoam plate (€35.50) or a block of wood and place it in a sheltered location - for example directly on a warming house wall. With plants cultivated in planters, there is always a risk that the roots will freeze through in severe cold, because the planters cannot withstand sub-zero temperatures - in contrast to insulating soil.
Properly overwintering a sedum plant cultivated as a houseplant
Special rules also apply to sedum plants cultivated as houseplants with regard to their overwintering. Sedum should not be kept in warm rooms all year round, but needs a rest period of at least three months. In this, the plants are only watered a little and not fertilized at all, and the ideal winter temperature should be between five and a maximum of twelve degrees Celsius.
tips
Caution is advised, especially in very wet winters, because the sedum plant is very sensitive to moisture and especially waterlogging. For this reason, the plant should never be mulched.