It is the leaf formation that give Stacked crassula the common name, however a number of species fall into the ‘Stacked’ category and they do differ in size, leaf shape and colour.
Why are they called ‘Stacked Crassulas’ ?
The stems have very short internodes, which refers to the length of the stem between leaves, so short that the leaves seem to stacked on top of each other.
So the leaves form these stacks along the stem, some close together others neatly spaced, different species with different growth habits aand lots of named varieties as well.
Two that look similar and are often confused are Crassula perforata and Crassula rupestris.
- Crassula perforata is commonly called ‘String of Buttons’ and this is a fairly common plant.
- Crassula rupestris is a larger growing plant, thicker fleshier leaves, and C. Rupestris branches more freely than C. perforata.
Other large stacked Crassula species are listed below
How to grow Stacked Crassula
As these are generally small plants, unless you are growing them a rock garden or crevice garden in their own little space, they can tend be overgrown by other plants. I
It is a good idea for gardeners to grow these little plants in containers, where they can be shown off and also where conditions can be controlled.
Start with a pot with good drainage holes and a free dry ing specialist succulent and cactus mix.
You need to grow these plants in a position that is sheltered but still receives good sun. Stacked Crassula will grow in light shade, however foliage colour is better when they receive good sun for at least part of the day.
The amount of sun depends on your climate.
- Plant your stacked crassula in a pot that is not too large.
- Use a little fertiliser in the potting mix.
- Water in gently a few days after potting. This gives the roots time to callus over if damaged.
- A frost free position is essential.
Ongoing Care
- Use a wet/dry watering cycle. Always allow the soil to dry between waterings.
- Use a topping around the plant for appearance and to help control fungus gnats.
- Fertilise each year with a soft nitrogen type fertiliser.
- It is important to back on watering during dormancy as with most succulents.
Other Stack Crassula Species Include:
- Crassula rupestris subsp. marnieriana, commonly known as Jade Necklace or Chinese Pagoda
- C. mucosa is called the ‘Watch Chain’ – very fine foliage.
- C. pyramidalis is perhaps best known for the ‘Buddha’s Temple’ cultivar.
- C. marchandii is a smaller growing species
- C. columella is a small type, it is slow growing as well.
- C. capitella thyrsiflora is also small but with brilliant foliage colour.
- Crassula cornuta and Crassula deceptor are two more that are often confused.
