Surreal Succulents
x Semponium 'Sienna'
x Semponium 'Sienna'
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Most of our plants are shipped bare-root. Please note that the plant you receive may not be an exact likeness of the images shown. How we prepare your plants
x Semponium 'Sienna' quick care tips
Watering
Watering
The x Semponium 'Sienna' would like watering between once and twice per week in the peak growing season. It is advised to reduce watering when plants are dormant due to a heatwave and to significantly reduce/ stop watering when conditions are frosty.
Feeding
Feeding
x Semponium 'Sienna' likes to be fed to bring out its best forms and colours. We recommend feeding with a liquid seaweed feed every 2 weeks in the main growing season from April to September. A feed we recommend is the one from our friends at LittleGreenSeaweed.
Ideal soil
Ideal soil
x Semponium 'Sienna' needs free draining soil to thrive. We recommend a mixture of 1/3 John Innes no.2, 1/3 perlite and 1/3 coconut coir. The soil mix we offer here is similar in composition to this.
More Advice
More Advice
As Semponiums take similar care to Aeoniums, these guides will be useful to follow:
General Aeonium Care Advice
Winter Aeonium Care Advice
Spring Aeonium Care Advice
x Semponium 'Sienna'
Introducing the beautiful intergeneric hybrid ×Semponium ‘Sienna’, the world's first official cross between Sempervivum and Aeonium, specifically a cross of Sempervivum ‘Green Ice’ and Aeonium ‘Ice Warrior’.
x Semponium 'Sienna' is a fast-growing succulent that grows into a stunning conical shape. It produces a large central rosette with layers of evenly spaced smaller rosettes. The leaves are slender, with the ends of the foliage becoming more spoon-shaped. One of the most outstanding features of the x Semponium 'Sienna' is the colour. It has beautiful Sienna reds in the spring and summer, intensifying and becoming a vibrant electric red when positioned in strong sunlight. This succulent is one of the most attractive hybrids we have ever created at the nursery. The way the leaves illuminate when the sunlight hits them is like nothing else: a genuinely stunning plant worthy of a prime location in the garden.
Awarded Plant of the Month for June 2024.
Ideal Environment for x Semponium 'Sienna'
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Size Guide
If unstated otherwise, our plants are grown in 6cm pots and are around 5-7cm in width and height, depending on the variety and time of year.
Size Option Guide
6cm pot - Regular: Orange pot (bottom).
13cm pot - Large: Grey pot (right).
21cm pot - X Large: Grey pot (left).

x Semponium gallery
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Mixed x Semponiums
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Firey x Semponium 'Sienna'
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RHS Plant of the year 2022 x Semponium 'Destiny'
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Cluster of x Semponium 'Mrs Frosty'
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x Semponium 'Destiny' Flower
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x Semponium 'Vortex' close up