[Ebook Việt Hoá] New Plant Parent (Darryl Cheng) – Phần 02 – Peace Lily (cây thuộc chi Spathiphyllum)

  • 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

Peace Lily

The peace lily grows in a nice, symmetrical splash of leaves, which makes it an excellent stand-alone plant. At the nursery, peace lilies are grown rapidly and given a shot of gibberellic acid, a natural plant hormone that induces flowering. This is how a grower can have flowering peace lilies ready for purchase year-round. In typical home conditions, however, after the initial blooms die off, you’re likely going to see two or three blooms occurring several months apart.

The development of a peace lily bloom—the entire process takes a few weeks.
The development of a peace lily bloom—the entire process takes a few weeks.

Survival strategy

The peace lily is yet another victim of the phrase “thrives in low light.” If you want the peace lily to have a chance at life, it needs to see daily highs of at least 50 foot-candles. But at this low level, don’t expect much growth. When the soil is mostly dry, peace lilies will wilt dramatically. Only thorough soil drenching will restore the perkiness. Occasionally aerating the soil will help disturb any stale pockets of soil that might otherwise develop, causing root rot.

Growth strategy

Anywhere from 100 to 600 foot-candles will yield good peace-lily growth. Recall that soil moisture usage becomes more rapid with greater light intensity, so when you expose the peace lily to even brighter conditions (800 foot-candles up to full sun), the plant will get to the point of wilting within a few days, at which point you will need to immediately water it thoroughly to prevent permanent damage. So giving the peace lily light in the range of 100–600 foot-candles will balance good growth with comfortable watering frequency.

Subjective life span

Some plant parents may become bored with the peace lily once the initial blooms fade, but for those who understand indirect light and water accord

The development of a peace lily bloom—the entire process takes a few weeks.

Giving a wilting peace lily an immediate soaking will get it to perk back up, but don’t make a habit of letting it get to this wilted state—roots can be permanently damaged, causing the corresponding leaves to not regain their spring. 
Giving a wilting peace lily an immediate soaking will get it to perk back up, but don’t make a habit of letting it get to this wilted state—roots can be permanently damaged, causing the corresponding leaves to not regain their spring.
Heavy application of gibberellic acid can sometimes lead to irregularities in peace lily blooms—such as multiple flowers growing from the same stem (right). Compare this with a regular peace lily bloom (left).
Heavy application of gibberellic acid can sometimes lead to irregularities in peace lily blooms—such as multiple flowers growing from the same stem (right). Compare this with a regular peace lily bloom (left).

Observations from Peace Lily Parenthood

A large variegated peace lily enjoying filtered light—sun shining through a white sheer curtain.
A large variegated peace lily enjoying filtered light—sun shining through a white sheer curtain.
The variegated peace lily has lovely white splashes and a rough textured leaf.
The variegated peace lily has lovely white splashes and a rough textured leaf.
Spotting a bloom is one of the most exciting parts of peace lily parenthood. It’s said that a peace lily is more likely to bloom when it is slightly pot-bound. This makes sense from an evolutionary standpoint—before the emergence of a new leaf, the plant assesses whether it is the right time to reproduce by seed. If the roots sense they are a bit crowded, then it would be worthwhile to spread new life by way of seed, as opposed to growing more leaves at the current site.
Spotting a bloom is one of the most exciting parts of peace lily parenthood. It’s said that a peace lily is more likely to bloom when it is slightly pot-bound. This makes sense from an evolutionary standpoint—before the emergence of a new leaf, the plant assesses whether it is the right time to reproduce by seed. If the roots sense they are a bit crowded, then it would be worthwhile to spread new life by way of seed, as opposed to growing more leaves at the current site.
New growth emerges as a rolled leaf emanating from the side of a previous leaf. When this new leaf has grown tall enough to reveal its stem, you should keep an eye out for the flower bump
New growth emerges as a rolled leaf emanating from the side of a previous leaf. When this new leaf has grown tall enough to reveal its stem, you should keep an eye out for the flower bump
Blooms remain a nice white for several weeks up to a couple of months, but they’ll all eventually fade to green or brown. At this time, you may find the overall plant looks unsightly, so cut off the spent blooms and enjoy the foliage until the next round of blooming.
Blooms remain a nice white for several weeks up to a couple of months, but they’ll all eventually fade to green or brown. At this time, you may find the overall plant looks unsightly, so cut off the spent blooms and enjoy the foliage until the next round of blooming.
Cut off spent blooms at the stem, just above where the bloom emerges from the leaf sheath.
Cut off spent blooms at the stem, just above where the bloom emerges from the leaf sheath.
If your peace lily was fresh from the nursery, you may notice many older leaves yellowing and/or developing brown spots as the plant adjusts to your home environment.
If your peace lily was fresh from the nursery, you may notice many older leaves yellowing and/or developing brown spots as the plant adjusts to your home environment.
Once these older leaves have become completely yellow, simply cut them off—as long as you are providing the best light you can and watering accordingly, removing older yellowed leaves is a normal part of plant parenthood.
Once these older leaves have become completely yellow, simply cut them off—as long as you are providing the best light you can and watering accordingly, removing older yellowed leaves is a normal part of plant parenthood.
The same peace lily after a good post-blooming maintenance session.
The same peace lily after a good post-blooming maintenance session.

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