[Ebook Việt Hoá] New Plant Parent (Darryl Cheng) – Phần 02 – Jade Plant (Phỉ Thúy, cây thuộc chi Crassula)

  • Nguồn: [Ebook] New Plant Parent: Develop Your Green Thumb and Care for Your House-Plant Family – Darryl Cheng
  • Biên tập: Dũng Cá Xinh (Tháng 01/2022)
  • Dịch: Team Codai.net 

English

Jade Plant

Jade plant varieties (clockwise from top): ripple leaf jade, ‘Gollum’ jade with finger-like leaves, silver jade, the standard plain green, golden jade, and, in the center, the variegated jade
Jade plant varieties (clockwise from top): ripple leaf jade, ‘Gollum’ jade with finger-like leaves, silver jade, the standard plain green, golden jade, and, in the center, the variegated jade

The jade plant (Crassula ovata) has long been a favorite of house-plant owners for its plump, teardrop-shaped leaves and the possibility of a treelike structure. New cuttings are all green, but with a few years of bright light, the lower stems develop a woody covering.

Survival strategy

If your daytime high brightness is between 100 and 300 foot-candles, don’t expect the jade to grow new leaves as big as the ones it came with. A jade plant sitting far away from a window will grow very slowly and become leggy. At this light level, the plant can only scrape by while holding on to the minimum number of leaves at the growing tips. Older leaves are shed for survival. Be careful about watering—bringing the soil to full saturation at this light level will put the roots at high risk of rot. You would be wise to move the plant to a brighter spot just for a day or two after watering. And because of the long time between waterings, the soil can become quite compacted and should therefore be aerated, which will allow water to penetrate the soil more evenly.

Growth strategy

At 500 foot-candles and higher, including some hours of full sun, your jade plant will grow very happily. You may still find the new growth leggy compared to when you first got the plant, but now, when you prune, there’s a better chance you’ll get two new stems coming out within a few months. You can easily check how hydrated your jade plants are by gently squeezing a leaf. When it is firm and plump, don’t water. Watering should be done when the soil becomes completely dry, but don’t wait too long after you see leaves getting wrinkled.

Subjective life span

A jade plant can be enjoyed for several decades in the right light. Don’t be afraid to prune it back to encourage branching. You can experiment with propagation by both leaf and stem cuttings, especially if you have a large plant to start with. The most common long-term issue is heavily compacted soil—this can be alleviated by regular aeration and repotting as necessary. Repotting can be done in the spring, once every two years, or even annually if your plant is growing fast. Jades tend to be top-heavy, so be sure to tamp down the soil around the stem and, if necessary, use a stake to keep your plant upright until the root system fills the new container. Use a potting mix with coarse sand and perlite for drainage. You can modify the mix based on your pot material: for a plastic pot (which is more water retentive), use more sand in the mix; for a clay pot (which is more porous), use less sand in the mix.

A small variegated jade plant (left) and several of the standard plants in one pot (right).

A small variegated jade plant (left) and several of the standard plants in one pot (right).
A small variegated jade plant (left) and several of the standard plants in one pot (right).

Observations from Jade Plant Parenthood

A very thirsty jade plant’s leaves are floppy and wrinkled. A few days after you soak the soil, the leaves will become plump and regain their firmness.
A very thirsty jade plant’s leaves are floppy and wrinkled. A few days after you soak the soil, the leaves will become plump and regain their firmness.
It’s especially important to aerate the soil of jade plants because of their preference for prolonged periods of dry soil. Soil can become quite compacted, which will hinder the remoistening process the next time you water.
It’s especially important to aerate the soil of jade plants because of their preference for prolonged periods of dry soil. Soil can become quite compacted, which will hinder the remoistening process the next time you water.
Don’t worry if the oldest leaves turn brown and fall off.
Don’t worry if the oldest leaves turn brown and fall off.
Although jades can handle full sun, some leaves may become scorched and faded.
Although jades can handle full sun, some leaves may become scorched and faded.

Varieties of Jade Plants

The sunset jade develops a beautiful orange glow when it is exposed to full sun and is slightly stressed for water.
The sunset jade develops a beautiful orange glow when it is exposed to full sun and is slightly stressed for water.

Pruning and Propagating a Jade Plant

You can grow new plants from the cuttings of growing tips or even individual leaves. Let the open scar where the leaf came off the branch scab over (this usually takes a few days), then set it down on moist sand or cactus soil. Here’s what you’ll get.
You can grow new plants from the cuttings of growing tips or even individual leaves. Let the open scar where the leaf came off the branch scab over (this usually takes a few days), then set it down on moist sand or cactus soil. Here’s what you’ll get.
If you’re looking for a treelike jade plant, you might be better off letting the nursery do all the hard work of training it, but with a bit of effort and strategic pruning, you can do it.
If you’re looking for a treelike jade plant, you might be better off letting the nursery do all the hard work of training it, but with a bit of effort and strategic pruning, you can do it.
An assortment of stem and leaf cuttings—a jade plant owner will always have a very busy propagation station!
An assortment of stem and leaf cuttings—a jade plant owner will always have a very busy propagation station!
The newly formed jade plants can be potted in miniature pots. They make excellent gifts for your green-thumbed friends.
The newly formed jade plants can be potted in miniature pots. They make excellent gifts for your green-thumbed friends.
Each jade stem will only grow outward, two leaves at a time. The way to encourage branching is to prune the growing tip (which can be propagated). If this is done during the beginning of the growing season and the plant is getting adequate light, two new tips will emerge within a few weeks. A few weeks after a hard pruning (where most of the stems with leaves were cut off), this jade went into hyper leaf-growing mode, producing leaves not only at the outermost node but also at the nodes going back farther on the stem.
Each jade stem will only grow outward, two leaves at a time. The way to encourage branching is to prune the growing tip (which can be propagated). If this is done during the beginning of the growing season and the plant is getting adequate light, two new tips will emerge within a few weeks. A few weeks after a hard pruning (where most of the stems with leaves were cut off), this jade went into hyper leaf-growing mode, producing leaves not only at the outermost node but also at the nodes going back farther on the stem.

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