zhilin
Full Member
touch the sky, reach the star
Posts: 294
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Post by zhilin on Dec 17, 2009 1:21:15 GMT
People often suggest to repot neps every year for their health. But it seems that repotting results in more or less damage to roots of neps. So how to correctly repot neps?
Recently I "repot" one of my neps. I just took the plant out of its old pot, keeping the old soil still with the roots (i.e. didn't get rid of the old soil). And then put the plant with the old soil in a bigger pot, adding new soil to fill the pot.
I know this may not be the so-called "repotting", but I didn't want to disturb the roots.
Can anyone tell me how his/her repots neps?
Thanks
Zhilin
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w03
Full Member
What???
Posts: 106
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Post by w03 on Dec 17, 2009 4:12:10 GMT
Technically, this is repotting, because you are moving to a different pot. When soil completely removed and changed to a new mixture, it is called a soil change.
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taz6122
Full Member
Yesterday is History.Tomorrow is a Mystery and Today is a Gift.Thats why we call it the Present.
Posts: 289
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Post by taz6122 on Dec 17, 2009 22:01:44 GMT
I believe this is called potting up and re potting does consist of a s-oil change. I haven't been doing this long but so far I've just potted up. If the soil smells bad it would be best to re pot.
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Post by Dave Evans on Dec 18, 2009 3:41:00 GMT
I do not suggest repotting your Nepenthes every year. Hopyfully the soil and water quality is high enough that your only need to repot about every three to four years.
As Nepenthes generally grow larger as they age, I up pot at the same time and try to remove a fair amount of the old soil, as much as I can without disturbing the roots much during the process.
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Post by stevestewart on Dec 18, 2009 12:30:10 GMT
Hello,
Nepenthes are very diverse in overall size and growth rate and culture. It is a mistake to lump all of them together and over generalize any cultural aspect.
If growing seedling lowland Nepenthes, repotting will probably need to be done at least yearly for several years. I do not remove any media from seedlings that are doing well. If a particular hybrid or species is having problems, I decide on an individual basis if I change media and how completely.
Large species like N. rafflesiana or N. bicalcarata should be repotted, with as little root disturbance as possible, when rootbound. In three to four years an average N. rafflesiana would need about 5-6 increases in pot size, when grown in optimal conditions. A 15 gallon pot is the optimal size large species and hybrids of flowering size Nepenthes do well in.
Intermediate size plants from seed, like the plant grown as N. ventricosa by many, would need about three increases in three or four years, with no change of media. A 6"-8"pot is large enough for mature plants of Nepenthes ventricosa.
Small species like N. bellii might only need one increase of pot size in four years.
Highland Nepenthes species and hybrids are very slow growing here in Florida and should be repotted only when well rooted. I have less experience than others in this group with these plants.
Over-potting is a problem when cultural conditions are not optimal. In northern climates, greenhouse grown lowland Nepenthes can quickly rot if temperatures and or humidity gets low (usually in short days) and the media stays wet. If this becomes a problem it may be necessary reduce pot size and changed media.
Take care,
Steven Stewart
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