FlytrapCare Carnivorous Plant Forums

Sponsored by FlytrapStore.com

Discuss water requirements, "soil" (growing media) and suitable planting containers

Moderator: Matt

By MarcinS
Location: 
Posts:  14
Joined:  Tue Jun 01, 2021 3:28 pm
#383287
I might try something similar
Please share your design when you complete it!
Are you on Facebook?
No, I do not have facebook account, I do not want to have a spy in my computer ;)

Some new pictures of my plants:

Genlisea started to produce traps :)
genlisea.jpg
genlisea.jpg (668.32 KiB) Viewed 2628 times
Roots of roridula
roridula.jpg
roridula.jpg (831.69 KiB) Viewed 2628 times
Roots of Heliamphora midoxa
heliamphora.jpg
heliamphora.jpg (651.17 KiB) Viewed 2628 times
Roots of D. capensis alba
capensis alba.jpg
capensis alba.jpg (959.3 KiB) Viewed 2628 times
Roots of D. capensis typical
capensisi tyical.jpg
capensisi tyical.jpg (675.3 KiB) Viewed 2628 times
Roots of pygmy droseras
pygmy.jpg
pygmy.jpg (843.65 KiB) Viewed 2628 times
Roots of D. coccicaulis
roots.jpg
roots.jpg (849.49 KiB) Viewed 2628 times
Drosera regia
regia.jpg
regia.jpg (1022.5 KiB) Viewed 2628 times
Drosera hamiltonii
hamiltonii.jpg
hamiltonii.jpg (771.28 KiB) Viewed 2628 times
Roots of mexican pinguicula
pinguicula.jpg
pinguicula.jpg (563.41 KiB) Viewed 2628 times
Some venus flytraps
IMG_20210615_172459.jpg
IMG_20210615_172459.jpg (1.07 MiB) Viewed 2628 times
IMG_20210615_172525.jpg
IMG_20210615_172525.jpg (825.68 KiB) Viewed 2628 times
IMG_20210615_172628.jpg
IMG_20210615_172628.jpg (818.96 KiB) Viewed 2628 times
IMG_20210615_172756.jpg
IMG_20210615_172756.jpg (941.04 KiB) Viewed 2628 times
elaineo, MaxVft liked this
By MarcinS
Location: 
Posts:  14
Joined:  Tue Jun 01, 2021 3:28 pm
#384383
I found that Utricularia calycifida and my two species of genlisea do not like to grow in sand. I replaced sand with peat and they started to grow better. I think it is because I was unable to deliver enough nutrients via leaf fertilisation.
Other plants that grow in pure sand are fine :)

Some venus flytraps:
dionaea 1.jpg
dionaea 1.jpg (3.19 MiB) Viewed 2513 times
dionaea 2.jpg
dionaea 2.jpg (2.43 MiB) Viewed 2513 times
dionaea 3.jpg
dionaea 3.jpg (2.52 MiB) Viewed 2513 times
dionaea 4.jpg
dionaea 4.jpg (4.25 MiB) Viewed 2513 times
dionaea 5.jpg
dionaea 5.jpg (3.8 MiB) Viewed 2513 times
dionaea 6.jpg
dionaea 6.jpg (2.12 MiB) Viewed 2513 times
dionaea 7.jpg
dionaea 7.jpg (3.97 MiB) Viewed 2513 times
dionaea 8.jpg
dionaea 8.jpg (3.91 MiB) Viewed 2513 times
dionaea 9.jpg
dionaea 9.jpg (3.68 MiB) Viewed 2513 times
Aboveground part of utricularia does not look spectacular...
utricularia oboveground.jpg
utricularia oboveground.jpg (1.98 MiB) Viewed 2513 times
But it does below peat surface :)
utricularia belowground.jpg
utricularia belowground.jpg (948.56 KiB) Viewed 2513 times
Drosera Slackii
slackii.jpg
slackii.jpg (2.67 MiB) Viewed 2513 times
and root of this species
slackii roots.jpg
slackii roots.jpg (4.45 MiB) Viewed 2513 times
Drosera schizandra. It has some living sphagnum on the top and some sand under it.
schizandra.jpg
schizandra.jpg (4.98 MiB) Viewed 2513 times
Young roridulas
roridula.jpg
roridula.jpg (3.09 MiB) Viewed 2513 times
Roots of roridulas
roridula roots.jpg
roridula roots.jpg (4.14 MiB) Viewed 2513 times
Drosera regia
regia.jpg
regia.jpg (4.84 MiB) Viewed 2513 times
Drosera madagascariensis growing like crazy
madagascariensis.jpg
madagascariensis.jpg (4.82 MiB) Viewed 2513 times
Drosera adelae
adelae.jpg
adelae.jpg (5.42 MiB) Viewed 2513 times
Pinguicula gypsicola
pinguicula.jpg
pinguicula.jpg (2.08 MiB) Viewed 2513 times
Pinguicula vulgaris
pinguicula 2.jpg
pinguicula 2.jpg (2.35 MiB) Viewed 2513 times
Heliamphora x midoxa
heliamphora.jpg
heliamphora.jpg (1.91 MiB) Viewed 2513 times
Traps of Genlisea repens
genlisea.jpg
genlisea.jpg (1.49 MiB) Viewed 2513 times
User avatar
By Hendre
Location: 
Posts:  69
Joined:  Sun Mar 29, 2020 2:03 pm
#384394
Wow! I have been looking at peat-free means of growing carnivorous plants for some time now, will definitely try this out. Even using standard mix like this, it seriously cuts down on the amount of substrate (and then peat) that you would need.

I wonder if weak nutrient mixes, low in nitrogen, would make for a good additive for this, or at least trace elements? At scale this is probably a fantastic way to propogate sundews as well. I may try this with some wild capensis forms I will be collecting soon. Thanks for sharing!
By MarcinS
Location: 
Posts:  14
Joined:  Tue Jun 01, 2021 3:28 pm
#384401
I wonder if weak nutrient mixes, low in nitrogen, would make for a good additive for this, or at least trace elements?
I tried to add diluted fertiliser to water and it never worked for me. Water and sand were becoming green and plants did not grow well. Carnivorous plants are adapted to very nutrient poor environments so they can grow in such conditions if are fed through leaves.

The only compound I add to water is potassium hydrogen phthalate (KHP). This compound is used as pH buffer, it stabilises pH at 4. It is very nice feature of this compound because even if you add a lot of it, the pH will not go below 4. It is also a source of K for plants. In one of my previous posts I wrote that I had observed signs of K deficiencies in some sundews. These signs disappeared after adding KHP.

I do not recommend adding KHP yet because I do not know what are long term effects. I did not observe any adverse effects so far.
User avatar
By Hendre
Location: 
Posts:  69
Joined:  Sun Mar 29, 2020 2:03 pm
#384404
Ah okay thank you! The KHP seems to be an ideal solution for keeping the water acidic as well as provinding potassium.

topic51264.html Would you mind lending your thoughts on this? Some drosera are not a fan of being permanently wet so I don't think this method would work for them (ramentacea, hilaris etc) so perhaps a low-to-no peat mix would be ideal.
By davinstewart
Location: 
Posts:  179
Joined:  Sat Jul 13, 2013 2:29 pm
#388773
I LOVE this idea.

I'm also wondering if this could be adapted to floating platforms over a larger body of water. Seems like floating styrofoam platforms would be ideal for this, would provide a constant level of moisture, and allow the water reservoir to remain cooler in strong sunlight.

In fact ... brb.
By davinstewart
Location: 
Posts:  179
Joined:  Sat Jul 13, 2013 2:29 pm
#389179
Also, I looked up prices for potassium hydrogen phthalate (KHP) and it looks fairly expensive here in the US. Do you top off your plants after it rains or only grow them indoors?
User avatar
By elaineo
Location: 
Posts:  798
Joined:  Tue Jul 24, 2012 4:07 am
#389181
davinstewart wrote:@MarcinS, what is that fabric you're using?
I'm not Marcin, but I believe the fabric is paint filter mesh, which is found at most hardware stores. A cheap substitute for KHP is pH Down, which is used in aquariums and hydroponics.
By davinstewart
Location: 
Posts:  179
Joined:  Sat Jul 13, 2013 2:29 pm
#389477
That's a good thought. Looks like that would do the trick nicely.

Now I just have to find a source for cheap KHP. I like the buffering effect at ~4 pH, however, all my google searches are coming up with ~$30/25g. Maybe I need to check on Alibaba or something.
User avatar
By elaineo
Location: 
Posts:  798
Joined:  Tue Jul 24, 2012 4:07 am
#389756
I sort of replicated the silica experiment. I didn't want to mess with glue, so I supported the fabric using a 2" net pot over a pickle jar. 20-grade silica sand is surprisingly good at wicking water. This is a B52 grown from a piece of flower stalk in pure sand.
IMG_2349.JPG
IMG_2349.JPG (1.2 MiB) Viewed 1834 times
MaxVft liked this
By davinstewart
Location: 
Posts:  179
Joined:  Sat Jul 13, 2013 2:29 pm
#389936
Interesting! It looks like you're not using a wicking fabric and have the sand sitting directly in the water. That might be too much moisture for the flytrap, don't know.

Have you modified the pH of your water? The OP didn't mention it much but getting the pH down might be very important.
elaineo liked this
What are my Gemae up to?

Generally, people don't transplant them at all. N[…]

We have royalty among us!!!!!!!!!

Dang, he changed his name again!

Thank you all so much!

I wanted to thank you all for the amazing help and[…]

Yes you did, you just don't know it. You and 19.8 […]

If you feed them a food item that is too large, th[…]

Mystery box

Thanks. It adds a nice ambiance if nothing else.

Order received. Your order number is 0998. I'll PM[…]

Live Sphagnum Moss?

Maybe I'll be able to propagate more over time. […]

Support the community - Shop at FlytrapStore.com!