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Received them as small bareroot clumps 1,5 month ago and I've had them under a 27W grow lamp since, but I've noticed little to no growth from them. What could be the problem?

Those are U. Sandersonii and U. Blanchetii.
Thanks!

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I've not grown utrics as yet, but I'm keen to do so. I'm interested to see what advice you get. But first I think people need more information about your growing conditions.

What temperature? What potting media? How wet are you keeping these utrics?

plantnerdjules wrote:I've not grown utrics as yet, but I'm keen to do so. I'm interested to see what advice you get. But first I think people need more information about your growing conditions.

What temperature? What potting media? How wet are you keeping these utrics?

The temperature they're at is around 15C/59F. They're planted in the standard peat:perlite mix, I pour water up to half the height of the pot and wait for it to go down completely. They're getting 12h of light each day. Unfortunately though, I am unable to provide much air circulation atm cos I don't have a fan nor can I open any windows as it's winter.

I've heard those species are supposed to be really easy so I'm not sure what I'm doing wrong.

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The temperature they're at is around 15C/59F. They're planted in the standard peat:perlite mix, I pour water up to half the height of the pot and wait for it to go down completely. They're getting 12h of light each day.

These are sub-tropical / tropical species so I think the temperature - at least daytime temperature - needs to be quite a lot warmer for them to grow well. Longer day length (light on) would probably help too.

Yes, I agree on the temperature. It needs to be warmer so hopefully they either rest during the winter and are not overtaken by the moss, or you need to make the environment warmer . Sometimes you get a bad clump of Utricularia, whether from poor attention by the seller, damage during transportation, or something else.
If given time in the right location/ conditions, a small 1 inch by 1 inch clump can turn into this… Both are from August (so 6 months old) and in the same environment, but look at difference. One decided to flower, one decided to grow (and grow)… and grow.

by the way, what is your soil recipe ?

Okay, so guess what. As soon as I was getting worried, they started putting out new leaves . You guys are saying I need to increase the temperature, but I have to choose between the lamp or the higher temperature, since I can't have both. What do you think would be more important?

Also, should I pluck out the moss growing around them or would that be too risky?

Here are the pics. The new growth is barely visible, but its there!

(Btw my clumps weren't even half an inch across when I got them so maybe thats why they took so long)

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Supercazzola wrote:Yes, I agree on the temperature. It needs to be warmer so hopefully they either rest during the winter and are not overtaken by the moss, or you need to make the environment warmer . Sometimes you get a bad clump of Utricularia, whether from poor attention by the seller, damage during transportation, or something else.
If given time in the right location/ conditions, a small 1 inch by 1 inch clump can turn into this…

image.jpg

Both are from August (so 6 months old) and in the same environment, but look at difference. One decided to flower, one decided to grow (and grow)… and grow.

by the way, what is your soil recipe ?

They're planted in a peat:perlite mix with a roughly 1:1 ratio. Afaik they'll be happy with whatever they're growing in.

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most lamps, even LEDs, throw out some heat. Maybe tray an enclosed area with a light ? I assume you don't have a grow tent to use until it takes off.

My Sandersonii is in peat/ perlite and lives in a west window. Not a fast grower for me and not a frequent bloomer either. Temps this time of year in front of the window are around 68-70. Sometimes higher depending on weather etc. My livida lives near it and grows fast and blooms like crazy. Same soil mix.

Heat shoul dhelp, so should ligt
do not give too much light as i t may sunbunr, no direct light


sometimes light flooding occasioinally improves flowering/growth in some species