Dormancy
休眠
The least understood and most critical time for cultivating succulents is the dormancy or rest period. Most losses occur during or shortly after this time because plants are kept too dry and not monitored. This is the number one reason for failure.
休眠期对于多肉来说是一个危险的时段,对于种植者来说则显得有些神秘。许多植株都在休眠期间或之后不久死去,大多由于休眠时过于干旱或没有得到仔细监护。
Dormancy is a fact of life. Plants gradually move into a rest period in response to dropping light and temperature levels. They need this break to stay healthy. Your job is to coast them through it.
休眠是她们生命周期的一部分,当光线和温度不再适合她们活跃的时候,她们就需要休息一下,以维持健康的状态。而你的任务则是陪伴她们度过这段时期。
The first sign that a plant is entering dormancy is that it stops growing. Soon after, leaves begin to yellow and drop, rosettes tighten and contract, or for very succulent groups such as mesembs, bodies can pull themselves into the soil and develop a papery covering as protection.
植物进入休眠的第一个征兆是停止生长。然后很快叶子会变黄脱落,莲座合拢。有些种类的多肉(比如番杏),身体会全部缩进土里,长出一层纸一样的外皮以保护自己。
In October, the Pachypodium densiflorum (winter dormant) on the left shows the first signs of oncoming dormancy by shedding leaves from the bottom up.
十月份,这棵Pachypodium densiflorum(夏型种)就表现出了休眠的迹象,叶子从底部开始脱落。
The Haworthia cooperi on the right (summer dormant) has likewise begun its resting period but in June. Notice how the individual rosettes have contracted and closed.
这棵Haworthia cooperi(冬型种)在六月的时候会进入休眠,莲座闭合。
You may not see much happening on the outside, but even in this state, your plants are not just sitting there. Transpiration is still going on and this moisture must be replaced. They need feeder roots to take up this moisture so naturally plants cannot be kept so dry that these roots desiccate and die. This can easily happen to slow growing species and the consequences will not become apparent until spring when growth commences and plants begin to fail. Plants are failing in April and May because of what you did over the winter months. Signs of trouble often take months to appear.
虽然外表上看不出来,但其实休眠的时候植物并没有闲着。蒸腾作用还在继续,水分供给不能停。她们的根部需要一定的湿度,所以不能完全保持干燥,否则根系就会干死了。对于长得慢的品种来说,颓败的迹象可能要到开春才会显现。你冬天对她们的所作所为,四五月份就会得到报复了,虽然这种报复可能迟好几个月才会降临。
So how often should you water during the rest period? Again it largely depends on your conditions, i.e. how fast they dry out. If you live where it’s cool during the winter, your plants will rapidly dry from heating equipment being present so one or two waterings per week may be required. If you live in a mild climate, possibly every other week will work. Just water, give them a good dry spell to the point where pots feel light but not dust dry, then water again.
所以休眠期间应该怎么浇水呢?还是那句话,取决于你的养殖环境,即盆土干透的速度。如果你那里的冬天比较寒冷,屋里又有暖气的话,土很快就会干透了,因此每周浇水一两次是合理的。如果你住的地方气候温和,也许每隔一周浇一次更合适。要点就是浇水,等水分消失干净,即盆变轻但又尚未干到冒烟的时候,浇下一次。
What about the plants that are summer dormant and how should they be treated? Since this group is resting during the warmest time of the year, they will dry out much faster than the winter dormant species and therefore require more frequent waterings. As a starting point, water these every other time you water your summer growers but again, it completely depends on your conditions. During extremely hot weather, they may need water every day.
那夏季休眠的植物应该怎么照顾呢?由于这帮家伙选在一年中最热的时候睡觉,盆土会比冬天干得更快,需要更频繁的给水。通常来说,夏天可以每浇两次夏型种,浇一次冬型种。但还是那句话,这完全取决于你的环境。在特别炎热的时候,她们甚至可能需要每天浇水。
It’s important to remember that you can’t force your plants into or out of dormancy by withholding or applying moisture. The one exception to this is the mistaken advice one often hears that succulents should be kept completely dry when dormant. In this case they will indeed go dormant but unfortunately it will likely be permanent.
要注意的是,你是不能通过给水量来控制植物是否休眠的。当然了,这里有一个例外,就是那句“多肉在休眠的时候应该完全断水”。如果你真这么干了,那么她们当然会休眠,而且永远不会醒了。
To better understand dormancy and its role in your cultivation, you must be aware of when your plants are actually dormant. Succulents can be organized by genus into the two groups of winter and summer dormant with the most popular genera presented in our Dormancy Table. There are a few exceptions for individual species.
为了更好地掌握你家植物休眠的状况,知道她们什么时候休眠非常重要。根据她们的天性,多肉可以分为夏型种(夏季生长,冬季休眠)和冬型种(冬季生长,夏季休眠)。下面这张表格列出了常见的属的休眠时间,但个别品种可能有例外。 |