Name: 挿し木からポトスを繁殖させる (Propagating Pothos from Cuttings)
Uploaded: 2025-07-19T22:59:25.000Z
Duration: 9 min 7 s
Description: VoiceTubeの動画で発音を聞きながら英語表現を覚えよう！学べる英語：

こんにちは、水耕栽培担当のジェリー・ハームスです。

Today we're going to talk about pothos and hydroponics and how you can grow your own cuttings, grow your own plants, propagate your own plants from the barrack plant.

今日は、ポトスと水耕栽培について、そして自分で挿し木をしたり、自分で植物を育てたり、バラック植物から自分の植物を繁殖させたりする方法についてお話ししましょう。

Pothos grows a vine and that's one of the things that makes them attractive is their ability to cascade.

ポトスはつるを伸ばし、それが魅力のひとつでもある。

What we need to do is we need to propagate this plant and get new cuttings and so what we're going to do is we're going to start cutting off all of these long runners and we just cut along even with the pot.

この植物を繁殖させ、新しい挿し木を手に入れる必要がある。

Here are the vines that we cut from the parent plant and again what I did is I picked just below the top edge of the pot and cut them all off all the way around and this is what we're going to use for our cuttings.

これが親株から切り取ったツルです。もう一度言いますが、鉢の上の縁のすぐ下を摘んで、ぐるりと全部切り落としたものです。

Number one is pothos vines have what's called a leaf and an eye and this is where the new growth is going to occur so rather than taking this and putting it in a glass of water which you see all the time and the poor lonely thing is sitting in a glass of water and barely staying alive because it needs a lot of moisture to keep all of these vines growing and the only place that it can get moisture is from this tiny little root tip so this is what you see often times sitting in a glass of water that is not the way to do it.

ポトスのつるには葉と目と呼ばれるものがあり、ここから新芽が伸びていきます。ですから、これをコップの水に入れるのではなく、いつも目にするコップの水の中に入れて、かわいそうに孤独なポトスがかろうじて生きているのです。

ポトスの増殖方法を紹介しよう。

You take the vine and you cut it so that the leaf and the eye is the piece that we're going to root.

ツルを取って、葉と目の部分が根になるように切るんだ。

The section in the middle between these two gets discarded so what we have to do is go down all of these and believe it or not the end tip is not the best for propagating.

この2つの中間のセクションは捨てられるので、私たちがやらなければならないのは、これらすべてを下っていくことで、信じられないかもしれないが、末端の先端は増殖に最適ではない。

So here's what we got from that one vine and those will all grow roots.

だから、この1本のツルから得たものがここにある。

I've cut all of the leaves from the vine and again the cutting that I made was a leaf and a little section of that vine.

私はつるから葉をすべて切り取ったが、今回も葉とつるの一部を切り取った。

This is called a leaf and an eye and this is where the new root is going to form on the plant.

これは葉と目と呼ばれ、植物の新しい根が形成される場所である。

Now there's a couple of things you need to know with this however.

しかし、これにはいくつかの注意点がある。

Number one is roots need air as much as they need water to grow.

その1は、根が成長するには水と同じくらい空気が必要だということだ。

So you should replace this water with fresh water from your tap every day that you think of it.

だから、毎日この水を水道水から新鮮な水に取り替える必要がある。

You don't need to do it every day but every couple of days because the water that comes out of your tap has oxygen in it.

毎日する必要はないが、2、3日に1度はしてほしい。水道から出てくる水には酸素が含まれているからだ。

As it sits the oxygen evaporates and the water becomes stale so replacing the water every couple of days is number one.

置いておくと酸素が蒸発して水が古くなるので、2、3日おきに水を交換するのが第一だ。

Number two is the best place to put these cuttings is on your kitchen counter or somewhere where it's nice and warm because roots need warm air to grow.

根が成長するには暖かい空気が必要だからだ。

These roots on these plants will not grow at temperatures lower than 68 degrees.

これらの植物の根は、68度以下では成長しない。

So a windowsill is not the best place to put these by far.

だから、窓辺はこれを置くのに最適な場所ではない。

The best place to put these is on your kitchen counter, above the dishwasher, somewhere like that where indirect light is fine, temperature is the important thing.

これを置くのに最適な場所は、キッチンカウンターの上や食器洗い機の上など、間接照明でも構わない場所だ。

It's been about three weeks since we put our pothos cuttings in water and here's what we have.

ポトスの挿し木を水に入れてから3週間ほど経ちました。

As you can see we've got a nice group of roots growing and the key to this is warm temperatures and I replace the water every couple of days.

ご覧の通り、根は立派に伸びています。その秘訣は気温が高いことと、2、3日おきに水を取り替えることです。

The next thing is to determine what size hydro planter we want to put these in.

次の課題は、どのサイズのハイドロプランターにこれを入れるかだ。

Is it going to be in a four inch planter or should we put them in a five inch planter?

4インチのプランターに入れるのか、それとも5インチのプランターに入れるのか？

Well I'm going to choose a four inch planter and the reason I do that is with any type of vining plant to get a good looking plant you need lots and lots of cuttings.

どんな種類のつる性植物でも、見栄えの良い株を作るにはたくさんの挿し木が必要だからだ。

So typically we will put between 12 and 15 cuttings into a four inch planter when we grow them in the nursery and a five inch planter will get almost 20 cuttings.

通常、苗床で栽培する場合、4インチのプランターには12～15本の挿し穂を挿し、5インチのプランターには20本近くの挿し穂を挿します。

That way if any one of your cuttings dies or you have any kind of problem you can pull it out and you're still going to have a nice full plant.

そうすれば、もし挿し木した苗が枯れてしまったり、何らかの問題が発生した場合でも、その苗を引き抜くことができ、立派な苗を残すことができる。

Furthermore as this plant matures you're going to have a nice big beautiful full crown.

さらに、この植物が成熟するにつれて、大きく美しいクラウンができるだろう。

Okay let's plant our cuttings into the new hydro planter.

さて、新しいハイドロプランターに挿し木を植えよう。

I want to point out here along the way you're going to lose a cutting or two like these didn't reach the water and they dehydrated.

ここで指摘しておきたいのは、水分が届かず脱水してしまったように、途中で1、2カットロスしてしまうということだ。

No big deal we'll just put those to the side let's not try and make them work.

大したことではない......そんなものは横に置いておくことにしよう......それをうまく機能させようとするのはやめよう。

Now the other thing that I like to do is soak my clay pebbles for a couple of hours or overnight in a KLN solution and this gets them saturated and ready for our new transplant.

もうひとつ私が好きなのは、粘土質の小石をKLN溶液に数時間から一晩浸すことだ。

Now we're going to put our clay pebbles that have been saturated into our grow pot that we chose a four inch grow pot and all I'm doing here is just covering the bottom with the pebbles.

それでは、飽和状態になった粘土質の小石を、4インチの栽培ポットに入れ、底を小石で覆います。

Now I take my cuttings and the key to this is your cuttings should all be on the same level and that can be tricky sometimes.

挿し木をするときに重要なのは、挿し木をすべて同じ高さにすること。

Some get high some get low you want to have them like just about on the same level.

高くなる選手もいれば低くなる選手もいる。

I set my cuttings in the culture pot let them open up add a few pebbles in the center tapping that down then grabbing the cuttings putting them all together and adding pebbles around the side.

挿し穂を培養ポットに入れて、開いてきたら、真ん中に小石を数個入れて、それをトントンと軽く叩いてから、挿し穂を掴んで全部一緒にして、小石を周りに入れるんだ。

This is where I'm aggressive and I really press the pebbles down hard you don't need to worry about crushing the roots because the pebbles are round they won't crush the  What you do want here is a stable plant and there you are your new hydroponic plant that you grew from cuttings.

小石は丸いので、根を押しつぶす心配はない。

All we have to do now is add the water gauge put it in our outer pot and we're going to water to a half on the gauge and we're good to go because we had mature roots to begin with.

あとはウォーターゲージを外側の鉢に入れて、ゲージの半分まで水をやるだけだ。

There's our new plant it might look a little floppy for a couple of days but in a week or so it's going to stand up and be a beautiful hydroponic plant.

2、3日はちょっとペラペラに見えるかもしれないけど、1週間かそこらで立ち上がって、美しい水耕栽培の植物になるんだ。

One final thing before we go an arts and crafts project here since this is a do-it-yourself project is perhaps you don't want to use a our regular outer pots let's say for example you like terracotta pots better or any kind of decorative pot I'm going to show you how you can put your new Pothos cuttings into a pot like this and eliminate the outer pot.

最後に、これはDIYのプロジェクトなので、図工の前にひとつだけ。例えば、テラコッタの鉢や装飾的な鉢がお好きなら、通常の外鉢は使いたくないかもしれませんが、このような鉢に新しいポトスの挿し木を入れて、外鉢をなくす方法をご紹介します。

All you have to do is get one of our clear plastic saucers and we show you at the store on our website what saucers go with what culture pots and so having this thing sit in a clear plastic saucer is the saucer is now going to be the reservoir and then that fits inside of our clay pot but oh whoops it sticks out the top.

透明なプラスチックの受け皿を買ってきて、どの受け皿がどの文化ポットに合うか、ホームページで紹介している。

That's no problem because all I have to do with this is take my scissors and I cut the top rim of that saucer off you should never have more water in that plant than this anyhow I stick that down in my clay pot put the culture pot in there and there we go our hydroponic planter is now in a terracotta pot.

この受け皿の上部の縁をハサミで切り落とすだけでいいんだ。