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Saturday, 15 April 2017 13:50

Apr 16, Sempervivum - Jewels of the Xeriscape Garden

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Jewels of the Xeriscape Garden; also known as Hens and Chickens plants

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Sempervivum have been known for centuries as hens and chicks, and also called houseleeks in many areas in Europe. Ancient lore tells of using Sempervivum to repel evil spirits and protect homes from Thor, the god of thunder and lightning.

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The villagers of days gone by would plant Sempervivum on the roofs of their cottages as protection against fire caused by lightening strikes in the very first recorded instance of fire smart gardening.

There are many species, and many selected varieties of those on this extensive Sempervivum list to choose from.

No matter which kind you choose, you can't go wrong!

There are no bad combinations of these great garden plants; See some of the varied colors, shapes, sizes and textures of the wide array of species in the picture. 

They all play well with others, and support many other xeric plants in an outstanding display of communal living and harmony.

Nowadays, as well as growing them on green roofs, we use these great drought smart plants to beautify our xeric gardens, make living succulent wreaths or walls, and plant in containers for patio and dooryards or in succulent hanging baskets.

They also happen to be perfect for using as wedding favors and flowers.

There is a trick to preparing them so they look their best even after being shipped halfway across the country.

See more about using Sempervivum for wedding flowers.

Some of my favorite planters are those made from old weathered roots or satellite dishes, recycled into shallow bowls to plant in.

Are you succulently obsessed and love using these interesting and oh, so versatile plants in crafts?

Enroll in the Succulent Crafts E-Course:

This online course is an immersion into all things succulent; whether your focus is on making a mosaic or some other really unique garden crafts, this course will cover it, as well as offer some great products for you to make your garden dream come true.

Start now and get creative!

I'm also in the process of building a Sempervivum wall to make an erosion prone bank into a spectacular focal point.

Used as iron tough ground covers for perennial beds, accents in rock gardens, or grown in trough gardens, these indispensable and jewel-like plants are becoming popular again.

Collectors can choose from huge specimens of Sempervivum tectorum that can reach over 20cm (8" - the size of a small dinner plate!) across, or tiny spider web types called Sempervivum arachnoideum species with rosettes only one centimeter (less than quarter of an inch) in diameter.

How to Grow Sempervivum

Sempervivum love dry soil and bright sun, so choose a place that gets at least four to six hours of full sun exposure.

The soil should be well drained, preferably sandy and with some small rocks or pebbles for added drainage.

Add some steer manure before planting and mix it in, or sprinkle on worm castings once a year for the perfect amount of nutrition.

Mulch with lava rock, sharp gravel or pebbles to provide the perfect drainage around the roots.

10 Best Hardy Succulents for Landscaping

See more compatible hardy succulents for your xeriscaping:

Whether you're seeking the odd and unusual, or something reliable and classic, this list will give you some great choices; click on the plant:

As the cooler fall weather approaches, enjoy the colour changes that occur in your collection of Sempervivum, and stop watering.

The best way to kill Sempervivum is to allow them to go into winter with wet soil.

They can be shipped bareroot in the mail, so they can withstand a lot of dry conditions, in fact, the drier they are (almost to the point of shriveling to nothing) the better they grow on when they arrive at their destination.

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How to Handle your Sempervivum Order

When you open your box of Sempervivum from the mail order supplier, you might be shocked at how they're shipped - they may look like no plants you've ever seen before - they may be shriveled and dormant, and have no soil and in some cases, no roots either!

Not to worry, this is perfectly fine, and they will start to grow as soon as you plant them in the garden, in crafts or in containers.

They may take a week or two to adapt to life in the light again, but these are tough plants. They have to be shipped in a forced dormancy to prevent etiolation, or stretching during shipping, and also to prevent mold or rotting from setting in.

They can be dried out considerably, which also has the added benefit of cheaper shipping costs.

Reputable mail order nurseries will ship Sempervivum and many other hardy succulents this way, but if you've never seen what the plants look like after this method, it can be surprising at how well they bounce back.

Plant the rosettes as they are into dry potting soil, or in the garden. They don't require immediate watering like some plants. Water them as you get around to it, or simply leave them for nature to do it.

In extreme drought, I recommend that you irrigate a few times, or pot the plants into plug trays, pots or containers where it's easier to take care of them, and then plant in the garden in the fall. If you routinely get the odd rain shower, or reliable fall rains, this is the way to go.

For planting in succulent crafts like spheres, mosaics and topiaries, they can be pinned in place, or stuff the roots or stolon into a hole in the coir fiber or moss.

If they won't stay in place, a small piece of wire or bamboo stick will hold them until they root, after which you can take the pin out.

Sempervivum - beautiful, varied and ever changing...

The colours of Sempervivum can range from soft beige with dark brown tips, to dusky blue, to bright red, changing with the season.

Many take on darker hues as cool weather arrives in the fall, to change back to green as they become dormant for the winter.

They glow in the sunlight, showing amazing 'watermarks' or delicate stripes.

The arachnoideum species, or cobwebs have gossamer webbing that in some cases almost totally encases the rosette.The choice of Sempervivum is amazing, with more new and unusual types being developed all the time as they hybridize with ease.

I now have over a hundred and fifty named varieties and more types grown in the landscape in tapestry beds along with Sedum. I grow them from seed, and I marvel at the myriad forms, colours and textures of them - all different.

What's the S stand for? Superb!

Growth Habit of Sempervivum

The rosettes are formed in a spiral pattern, with each new set of leaves making a smaller circle in the center of the plant.

Once the rosette gets big enough, baby chicks form at the base and emerge on stolons to root into the surrounding soil.

The stolons eventually become brittle and rot away, leaving a clutch of 'chicks' around the 'hen'.

Eventually, sometimes in year two or three, the hen will bloom, after which it dies, leaving a gap to be filled in with the chicks as they grow.

A sizable cluster of rosettes will result as each successive generation spreads wider afield in a textural carpet.

Having problems with your Sempervivum? See more about that here.

Uses of Sempervivum

Circular spiral patterns make these plants so distinctive

Combining many different types and sizes of Sempervivum with other hardy succulents gives the look of an ever changing patchwork quilt.

Group them in clusters and allow them to combine to show off the textures and colours as a ground cover, or planted among rocks.

In time, they'll fill in a pot or container to spill over the edge, sometimes dropping off and rooting into the ground below.

Easy to grow, easy to move, just pull gently until the rosette tears away and plug it into the next empty spot in your xeric garden. They don't even need to have roots on - just insert the stolon where you want the chick to grow to hold it in place until the roots emerge.

The rare and unusual Jovibarba are similar in appearance and culture to Sempervivum, but have some different and unique characteristics.

See more about Sempervivum below...

This is what other visitors have said...

Sempervivum, Hen and one little chick...

Lovely, but sadly unidentified, present
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soft pointy tender succulent
2" height, 4" spread several pointy clusters bought 1 yr ago

unknown name

soft pointy tender succulent
2" height, 4" spread several pointy clusters bought 1 yr ago

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My grandmother found these on the roof of her garage and I was just wondering if these are succulents and if so what kind? I live in the uk so it's …

Roof succulents
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This succulent is kind of soft and appears to produce web-like material from it's points.. Would like to know what the "web" is from, what kind of plant, …

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Help me identify this succulent.
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Is this "Assorted Succulent" an aeonium?
I found this small plant at a grocery store in Connecticut. It was simply labeled "Assorted Succulents" and the care instructions were basically "Water …

10ins tall with small pink flowers
10ins tall with small pink flowers, as you can see from the picture. Drought Smart Plants reply: Hi Zed, what you have is a Sempervivum , the …

After re-potting

Sempervivums Everywhere
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The only pre-cat- attack photo I have

Cat 1, Sempervivum 0
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Giant Lettuce Succulent
Mine has many leaves, a shiny surface, and these string-like fibers that connect the leaves' tips together. A few days ago it started to look a bit …

Mystery web succulent
Like hens and chicks this succulent has babies..but these intricate globes each have their own webs. Love them just can't figure out what they are. Thanks …

Sempervivum in Question
I just got this Sempervivum. I have no clue what kind it is. Can you please maybe tell me something about it. I hope this photo is good enough. It has …

Looks like a Sempervivum but the leaves point downward?
I bought this plant at lowes and planted it with a few other small cacti. The tag only said "succulent" and they cannot identify it at lowes. The …

Side view

Bell shaped base with a big green flower
Was hoping you could help me out with this - someone bought it for me and had no idea what it was. It looked very healthy when I first got it but after …

Lime green, reddish-purple tipped leaves
I bought this baby at a Shanghai flower market. it appears to be a succulent, and most resembles various echeveria. lime green, slightly meaty pointed …

I don't know what kind this is?
Help? Drought Smart Plants reply: without any clue as to where in the world you are or any background on the plant, I'm going to go with Sempervivum …

New To Succulents
Got these a few weeks ago...not sure what their identities are, but they look like they are getting to big for their container? is it unhealthy to keep …

Close up

Sempervivum Identification
Succulent Number 4: (lemon green pot) This one is the best of them all, in my opinion. It's getting quite big and has lots of babies, but I plan to …

First Flowers Appearing

Please Please help me identify my Sempervivums, Thank you!
I recently got FOUR succulents from the garden centre and have been trying to identify them, to no avail. Would you please help me? I will upload pictures …

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