Sedum


Assorted Sedum - Copyright: Word of Succulents



Contents

  1. Top Tips
  2. Location, Water, Humidity & Fertilisation
  3. Common Issues
  4. Origins, Temperature, Propagation, Repotting & Toxicity


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Top Tips & Info

  • Care Difficulty - Easy
  • Sedum are best suited for locations that offer a few hours of morning or evening sun, especially in the winter months. Avoid situating yours in deep shade due to the risk of basal rot.
  • Allow the soil's entirety to dry out in between waters - if you're stuck with when to water it, think of the ukhouseplants' phrase of 'Drenches Between Droughts'.
  • It's advised to water the plant using the bottom-up method of submersion, for the prevention of rotting foliage (caused by excess moisture above the soil line).
  • Fertilise every four to six weeks, using either a Cactus or Houseplant labelled feed.
  • Repot every three years during the spring, using a 'Cactus & Succulent' potting mix and the next sized pot.




Location & Light - 🔸🔸🔸

Sedum's prefer to be kept in partial sun, either in the morning or evening. A few hours of sunlight per day is highly beneficial as it'll significantly reduce the risk of over-watering and root rot. Due to the intolerance to low light, avoid placing one in areas where a newspaper can't be read without the use of artificial light.

If you've recently purchased an indoor Sedum, chances are it hasn't acclimatised to the potential direct sunlight you'll give it. If you're interested in placing yours in a brighter environment, gradually increase the light levels over a few weeks to prevent the risk of environmental shock or sun-scorch.


Water - 🔸

The ukhouseplants phrase, 'drenches between droughts' should strongly be associated with all forms of Sedum. During the growing period, allow ALL of the soil to dry out in between waters for at least a week, reducing this further during the autumn and winter.

Instead of pouring water directly through the foliage, irrigate using the bottom-up method by placing the pot on a saucer of water (25% submerged) until thorough absorption. Wetting the foliage every time the plant is hydrated will slowly allow excess moisture to settle, causing the leaves to yellow and rot away - scroll down to 'Common Issues' for more information on this. Under-watering symptoms include deflated leaves, little to no growth and gradual foliage decline. Be sure to study its environment; a position that offers too much sunlight will dry out the soil far too quickly and will eventually scorch the plant's leaves. Over-watering symptoms include rapidly yellowing leaves, wilting, mushy leaves or stem and plant death. Again, study where it's situated in your home. If it doesn't receive bright or overhead light, a relocation is mandatory to get your specimen back on track!


Humidity -

This is not a necessity; however, a quick hose down from time to time will hydrate the leaves and wash away dust or potential pests.


Fertilisation - 🔸

Supplement once a month using a 'Cactus'-labelled fertiliser, reducing this to every six weeks in the autumn and winter. Try not to over-feed a Sedum in dry soil as their roots are susceptible to burning, especially when over-applied.




Common Issues with Sedum

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Root rot is a common issue among specimens sat in too dark environments with prolonged soil moisture. Symptoms include rapidly yellowing leaves, mouldy soil, shrivelled growth and a rotten brown base. Take the plant out of the pot and inspect health below the compost line. If the roots sport a yellow tinge, you're good to go, but those that are brown and mushy must be addressed immediately. More information about addressing root rot can be found on this link.

A lack of leaves on the soil's top could be the product of excess moisture settling on the foliage. Although watering from the top is best, it's recommended to use the bottom-up method if you're a messy waterer. For specimens that have a bare head, improve growing conditions by using this method and increasing the light levels and air circulation. Take vine cuttings to promote a bushier appearance above the soil line - scroll down to 'Propagation for more information. Finally, always remove yellowed or rotten debris from the soil as it could harbour both bacterial and fungal diseases which will continue the plant's decline.

Failed leaf or vine cuttings are a common issue among amateur gardeners, with damaged wounds or too small vines being the usual culprits. Although Sedum propagation is relatively easy, people still find it hard to ace. Not only will the size of the vine dictate its success, damaging the leaves or vine can also hurt the chances of it rooting. Scroll down to 'Propagation' for more information regarding this issue!

Too much sunlight will cause a red tinge to the foliage. Although Sedum is best grown in locations offering around two hours of direct sunlight a day, prolonged periods of intense rays cannot be tolerated. Reduce the amount of sunlight received to just one hour a day, while keeping the growing conditions relatively similar to reduce the effects of environmental shock. Although the new growth will revert to its original green texture, sunburnt leaves will remain scorched for the rest of its functioning life.




Origins

Sedum consists of around six hundred species that mostly originate from temperate or subtropical locations around the world. The genus was first described in 1753 by Carl Linnaeus, using the old English word for 'houseleek', cedum, to describe the traits of its foliage. 


The Distribution of Sedum



Temperature

10° - 26°C   (50° - 78°F)
H1b (Hardiness Zone 12) - Can be grown outdoors during the summer in a sheltered location with temperatures above 12℃  (54℉),  but is fine to remain indoors, too. If you decide to bring this plant outdoors, don't allow it to endure any direct sunlight as it may result in sun-scorch and dehydration. Regularly keep an eye out for pests, especially when re-introducing it back indoors.


Spread

Up to 60cm in length with its width solely relying on diameter of the pot that it's in. The ultimate height will take between 3 - 5 years to achieve, but can live over a decade or more in the right care.


Pruning

Remove yellow or dying leaves, and plant debris to encourage better-growing conditions. While pruning, always use clean utensils or shears to reduce the chance of bacterial and fungal diseases. Never cut through yellowed tissue as this may cause further damage in the likes of diseases or bacterial infections. Remember to make clean incisions as too-damaged wounds may shock the plant, causing weakened growth and a decline in health.


Propagation

Vine Cuttings - Easy

Choose the healthiest stems located at the vine terminals; these should be damage-free and wholly plump. Cut off at least five inches and remove the older half of the leaves for the reduction of transpiration (moisture loss).

Soil - Use a well-draining potting mix, preferably 'Cactus & Succulent' Compost, and coil the vine in a circular shape, pinning it down with a paper clip. Cover the older half in half an inch of soil (the area where you removed the leaves) to promote quicker root development. Try not to cover the actual foliage with soil as this will harm its light-capturing efficiency, along with higher rates of rotting. Place the potted cuttings into a transparent bag and mist the soil and foliage once a week to maintain high humidity. Situate it in a bright, indirect setting with temperatures above 18°C (64°F). Be sure to pierce a few holes in the bag and actively remove any yellow or rotten debris to present a healthier environment. As the roots will develop first, remove the bag and treat it as an adult specimen once there are signs of new foliar development. 

Water - Place the bottom half of the vine (closest to the soil) in tepid water until roots develop. Be aware that this process may take up to two months, so patience is key with this form of propagation. Replace the water every few days and immediately remove any yellow or rotten debris to maintain good growing conditions. Once the roots begin to develop, coil the growth onto a bed of 'Cactus & Succulent' Compost with the appropriate sized pot. Be sure to submerge the rooted section around half an inch into the soil, allowing the leaves to remain above the surface to photosynthesise. Mist the soil once a week and place the potted cuttings into a transparent bag to maintain high humidity. Place the potted cuttings into a transparent bag and mist the soil and foliage once a week to maintain high humidity. Situate it in a bright, indirect setting with temperatures above 18°C (64°F). Be sure to pierce a few holes in the bag and actively remove any yellow or rotten debris to present a healthier environment. 

As the roots will develop first, remove the bag and treat it as an adult specimen once there are signs of new foliar development. If you need any more help regarding succulent propagation, don't be afraid to book a 1-to-1 call with Joe Bagley to help guide you through the step-by-step process!


Leaf Cuttings (Easy) - Leaves that are halfway along the vine have the most potential due to its size and maturity. Gently place your fingers between the mother's stem and the leaf's base, pulling it downwards until you hear a snap. Ensure the wound is wholly intact with no damage, as a bruise or tear will result in unsuccessful propagation. Set the leaf ON TOP OF a bed of moist 'Cactus & Succulent' Compost for root growth. Not only will this callus the wound (to prevent disease), but it'll also speed up the propagation process considerably. Once there are signs of small roots developing on the node, place it one third into the compost, at a slight angle. Provide a bright setting with temperatures around 18°C (64°F) with the majority of the soil drying out in between waters. New leaves should emerge within a month or two, thus signalling the start of its independent life!

Stem Cuttings (Easy) - Using a clean pair of scissors, cut a 10cm (4 - 5 inches) section off the stem's terminal. Be sure to use a fresh, damage or pest-free piece as unhealthy divisions are more likely to fail. Remove the older half of the leaves, so that the stem's lower portion is bare, to speed the process of root development. Purchase a 'Cactus & Succulent' Compost and vertically push the cutting's base into the soil, avoiding the risk of covering the actual foliage with soil. Situate the cutting in a bright, indirect setting with temperatures above 18°C (64°F). As the roots will develop first, remove the bag and treat it as an adult specimen once there are signs of new foliar development.


Flowers

Sedum may bloom in the summer if its previous dormancy period has been served well. Small pink or red flowers will develop at the vines' terminals that can last up to several weeks. The quality of its blooms largely relies on the quality of the dormancy period served in the previous winter.

To replicate its dormancy period:

  1. Reduce temperatures down to around 12°C (54°F) from late autumn until early spring, with little hydrations or fertilisation.
  2. Allow all of the soil to dry out for at a fortnight in between irrigations thoroughly, and never apply cold water as this may damage the roots.
  3. Provide a few hours of off-peak direct sunlight with one fertilisation throughout this period, until the first bud develops at the end of spring. 


Repotting 

Repot every three years in spring using a 'Cactus & Succulent' potting mix and the next sized pot with adequate drainage. Sedum are far better being potbound for several years due to the heightened risk of root rot and repotting-issues (like transplant shock), so only repot if you feel it's wholly necessary - restricted root growth will also increase the chance of blooms, too.

Hydrate the plant 24hrs before the tinkering with the roots to prevent the risk of transplant shock. For those situated in a darker location, introduce an extra amount of perlite and grit into the deeper portion of the pot to downplay over-watering risks. Click on this link for a detailed step-by-step guide on transplantation, or via this link to learn about repotting with root rot.

Book a 1-to-1 video call with Joe Bagley if you'd like a personal guide to repotting your houseplant. This will include recommending the right branded-compost and pot size, followed by a live video call whilst you transplant the specimen for step-by-step guidance and answer any further questions!


Pests & Diseases

Keep an eye out for mealybugs, scale, fungus gnats, whitefly, vine weevils & root mealybugs that'll locate themselves in the cubbyholes and undersides of the leaves, with the exception of the latter two in the soil. Common diseases associated with this genus are root rot, leaf-spot disease, botrytis, rust, powdery mildew & southern blight - click here to learn more about these issues.


Toxicity

Almost all Sedums are classified as poisonous, especially in the laves. If parts of the plants are eaten, vomiting, nausea and a loss of appetite could occur. Consumption of large quantities must be dealt with quickly; acquire medical assistance for further information.


Retail Locations

Online Stores.



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