Home » Gardening » Indoor plants » Crassula, the famous Jade Plant

Crassula, the famous Jade Plant

Crassula plant
2

Thick evergreen leaves that store their own water, carried on a neat little shrub the trade knows best as the Jade Plant (Crassula ovata): crassula is the succulent almost anyone can keep alive. It wants plenty of light but no scorching sun behind glass, and as little water as you dare, since overwatering is what usually kills it.

Crassula at a glance
Name Crassula
Family Crassulaceae
Type succulent plant
Height 8 inches (20 cm)
Soil light, well-drained
Exposure well-lit
Foliage evergreen
Flowering summer

It shows up in more and more places for its very trendy ornamental value. Caring for it is something anyone can succeed in, even though to keep it beautiful these tips will be very useful.

Planting crassula

Careful planting in the right soil is the key to a long-living crassula.

Planting and repotting crassula

Crassula is most often native to South Africa and adapts well to mild climates.

It is preferable to grow your crassula indoors if you expect freezing over the winter. Indeed, the slightest frost would kill it.

  • You may repot your crassula just after having purchased it if you’ve purchased it when not in flower, but pots for this plant are usually designed for at least another two years of service before growing too small for the plant.
  • After that, an annual repotting whenever your crassula looks like it is in a tight fit is recommended, with soil mix and sand, one part each.
  • Crassula can only survive outdoors in winter in regions closer to the equator.
  • If planting outside, prefer full sun exposure.

Propagating crassula

Crassula propagation
Young stems root readily as cuttings

Crassula can be propagated by preparing cuttings from young stems.

It is usually quite easy to get the crassula to sprout roots.

  • Slice off young stems with a sharp and disinfected blade.
  • Plant the young cutting in special cutting soil mix.
  • Ensure the soil stays a bit moist (water only when it has turned really dry).
  • Keep your cutting near light, but not in direct sunlight.

Caring for crassula

Although caring for crassula is straightforward, a few tips will help you grow a very nice, long-living plant:

  • It requires a lot of sunlight.
  • Water as little as you dare because this is a plant that stores water in its leaves.
  • The soil must stay rather nutrient-poor, no fertilizer is needed.

How much to water, and when

Crassula stores water in its leaves, so the watering rhythm changes completely between the flowering season and the depths of winter. The table sets the three regimes side by side.

How much to water, and when
Period Watering frequency Before you water
In bloom, early to late summer 1 to 2 sessions a week Only once the soil has dried well
Outside the flowering season 1 to 2 sessions a fortnight Wait for the soil to dry out fully
Early winter to late winter One light watering a month A light watering is largely enough

Better one rare but generous watering than many small ones, and if the leaves begin to collapse or droop, water again.

Pruning crassula

crassula
Prune once branches grow old or weak
  • Prune your crassula when the branches get old or look weak.
  • The pruning is preferably performed after the blooming.
  • Avoid cutting more than ⅓ off each branch, and, this is important, leave at least a few leaves on each pruned branch.

Watering indoor crassula

  • During the blooming, 1 to 2 watering sessions a week, when the soil has dried well.
  • Apart from the blooming season, 1 to 2 watering sessions a fortnight.
  • In winter, light watering 1 time a month is largely enough.

In any case, it is important to wait for the soil to have dried well before watering, in which case it is also better to water once rarely with a significant amount rather then having many smaller watering sessions.

BE CAREFUL! Leaves from succulents are loaded with water. If they start collapsing or drooping over, it’s a sign to water again!

Types and varieties of Crassula

Crassula varieties are numerous and varied. There are hundreds of them!

Crassula jade plant
Crassula ovata, the best known of all
  • The most famous is Crassula ovata, also called the Jade Plant .
  • This is the one shown here (above/right)
  • It has many distinctive cultivars that breeders have selected.
  • Some have variegation, hollow leaves, and different hues and colors.

Other interesting species include:

  • Crassula perforata, which bears long skewer-like twigs with oval leaves.
  • Crassula helmsii, that grows in extremely wet environments and is frost-hardy.
Buddha's temple crassula
Stacked leaf patterns of a recent hybrid

On top of this, many fascinating hybrids exist that rival in color, shape and bloom for the greatest pleasure of all succulent fans!

  • Buddha’s Temple, with thin, stacked, mesmerizing leaf patterns.
  • It’s a recent hybrid of C. perfoliata and C. pyramidalis.

A summary

Native to either South Africa or Mexico, depending on the variety, Crassula is a very beautiful succulent with particularly appealing leaves.

With its reduced need for care, it poses practically no difficulty to the caretaker.

Although excess water is what most often kills it, it also like having a lot of light, but not scorching direct sun, as when behind a window.

You can set it in a pot or a garden box, along edges or on rocky ground.

Smart tip about Crassula plants

If ever you mistakenly break a leaf off, simply rest it atop soil and mist it from time to time. It will sprout roots and give rise to a new plant!

Frequently Asked Questions

Can crassula survive winter outdoors?

Crassula cannot tolerate frost and will be killed by even the slightest frost, so it must be grown indoors if you expect freezing temperatures. It can only survive outdoors in winter in regions closer to the equator.

How often should you water crassula indoors?

During blooming, water 1 to 2 times per week when soil has dried well. Outside blooming season, water 1 to 2 times per fortnight. In winter, light watering once a month is sufficient. Always wait for soil to dry completely before watering.

How long does crassula take to reach mature size?

The article states that pots for crassula are usually designed for at least two years of growth before the plant outgrows them, and annual repotting is recommended thereafter when the plant looks tight in its container.

When and how should you prune crassula?

Prune crassula after blooming when branches get old or look weak. Avoid cutting more than one-third off each branch, and always leave at least a few leaves on each pruned branch.

How do you propagate crassula from cuttings?

Slice off young stems with a sharp, disinfected blade and plant them in special cutting soil mix. Keep the soil slightly moist, watering only when completely dry, and position the cutting near light but not in direct sunlight until roots develop.


Images: CC BY 2.0: Marco Verch, CC BY-NC-SA 2.0: Jennifer Fabian, Pixabay: Claire Giral, Barbara Gollan

Written by Gaspard Lorthiois | Loves helping out, especially when it comes to growing things. Worked in herbal medicine, runs a farm, and dabbles in tech. Master's degree and engineer.

🌿 Nature & Garden Newsletter

Gardening tips, recipes & seasonal advice, twice a week.