Botanical name: Cotyledon undulata
Silver Crown Plant is also called Silver Ruffles. It is one of the best known of the Cotyledon species. It is a small succulent shrub growing to a height of 1-2 ft.
Silver Crown Plant has unusual gray waxy-edged and bloom-covered leaves that give it a very sculptural shape. The leaves are shaped like scallop shells.
The stems in Silver Crown Plant are covered with thick, white, coating. The flowers are orange to yellow.
Silver Crown Plant is native to South Africa. Silver Crown Plant is closely related to Cotyledon orbiculata (Pig's Ear Plant), another Cotyledon plant that is a popular houseplant.
Silver Crown Plant grows best in bright light to full sunlight. Should you choose to take your Silver Crown Plant outdoors, gradually acclimatize it and place it in a shaded place to avoid scorching the leaves. Check out this guide on understanding light for houseplants.
Water your Silver Crown Plant thoroughly during the hot season and allow the top 1-2 in. of soil to dry out between waterings. Water very infrequently in the cold months.
Ensure the pot for your Silver Crown Plant has a drainage hole to prevent getting soggy soil as it can lead to root-rot.
Avoid wetting the leaves of your Silver Crown Plant as it can lead to rotting. Water from the bottom instead.
Use room temperature water to avoid shocking your Silver Crown Plant. Read more on how to water houseplants.
Average warmth temperatures between 16-260C are ideal for your Silver Crown Plant.
The sudden change in temperature between day and night is excellent for your Silver Crown succulent plant. Check out this guide on understanding temperature for houseplants
Average room humidity is adequate for your Silver Crown Plant. Silver Crown Plant has no need for high humidity.
Feed your Silver Crown Plant monthly during the growing period with a water-soluble fertilizer. Withhold feeding in the cold season as growth of your Silver Crown Plant is minimal.
Repot your Silver Crown Plant only when it becomes pot-bound. Use a shallow rather than a deep pot; they have shallow roots. The pot should be only 1 size larger than the previous one.
Ensure the pot for your Silver Crown Plant has a drainage hole to avoid getting soggy soil as it can lead to root-rot.
A clay pot is preferable for your Silver Crown Plant because it is porous and therefore allows the soil to dry out faster. Also ensure the soil is loose and free-draining.
Pruning your Silver Crown Plant requires the removal of dead and diseased leaves to maintain your plant neat and tidy. Remove dead flowers to keep your Silver Crown Plant neat and tidy.
Silver Crown Plant can be propagated at the beginning of the growing season from stem cuttings.
Take a cutting of about 2-4 in. long from your Silver Crown Plant. Ensure the cutting has 2 or 3 leaf nodes as this is where new growth will come from. Allow the cuttings to dry (callous) for 1-3 days before planting.
Once calloussed stick the Silver Crown Plant cutting into moist free-draining, sandy soil. Ensure the pot has a drainage hole to avoid having soggy soil.
Place the set up in a well-lit, warm place. Water sparingly, only when the soil is dry and avoid overwatering as it can lead to rotting. The Silver Crown Plant cuttings should root in 3-4 weeks.
Overwatering or underwatering are the causes of leaf drop in your Silver Crown Plant. Water your Silver Crown Plant thoroughly during the growing season and allow the top soil to dry out between waterings.
Avoid overwatering your Silver Crown Plant by ensuring that the pot has a drainage hole and the soil is free-draining. Significantly reduce watering your Silver Crown Plant during the cold season. Never allow the soil ball to dry out completely.
Leggy Silver Crown Plant is an indication of inadequate lighting ; your Silver Crown Plant is reaching for light therefore it stretches. You can resolve this issue by moving your Silver Crown Plant to a sunnier spot.
The cause of brown soft spots in your Silver Crown Plant is Leaf spot disease which is enhanced by poor air circulation. Ensure there is free air circulation at all times.
Rotting plant base followed by yellowing and shrivelled leaves in your Silver Crown Plant is an indication of basal stem-rot disease which is brought about by overwet conditions. Avoid overwatering, ensure the pot has a drainage hole and the soil is free-draining.
The leaves of Silver Crown Plant (Cotyledon undulata) contain cotyledontoxin which is toxic to sheep, goats, horses, cattle, poultry and dogs. If ingested it causes a condition called cotyledonosis. Keep the plant out of the reach of animals.