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Starting seedlings under lights
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grainknot



Joined: 26 Mar 2021
Posts: 11

PostPosted: Tue Mar 30, 21 8:09 am    Post subject: IKEA Reply with quote
    

My partner and I have had very good success with IKEA's Hydroponic light - which unfortunately seems to have been discontinued. It was called VAXER. This year we rigged it up to their SOCKER in/outdoor greenhouse to raise our seed.

This has allowed us to start all of our summer veg, the tomatoes have done particularly well from being started under the light.

I've also grown bonsaied chilli plants indoors hydroponically using the light too with success.

Shan



Joined: 13 Jan 2009
Posts: 8924
Location: South Wales
PostPosted: Tue Mar 30, 21 8:40 am    Post subject: Reply with quote
    

Welcome to the forum Grainknot.

Do you prune the Chillis to be bonsai or are they a 'dwarf' variety?

grainknot



Joined: 26 Mar 2021
Posts: 11

PostPosted: Tue Mar 30, 21 1:17 pm    Post subject: Reply with quote
    

Hi!

I prune them/half nip the growing tip to cause them to bush out. There's a brilliant YouTuber called KhangStar who has taken the art of hydroponic chilli growing and crossing to new heights. Highly recommend if you're interested in such things

Shan



Joined: 13 Jan 2009
Posts: 8924
Location: South Wales
PostPosted: Tue Mar 30, 21 7:36 pm    Post subject: Reply with quote
    

Thank you, I shall go have a look ... assuming my internet lasts that long!

jema
Downsizer Moderator


Joined: 28 Oct 2004
Posts: 27150
Location: escaped from Swindon
PostPosted: Wed Mar 31, 21 6:29 am    Post subject: Reply with quote
    

I'm interested in the idea that basic LED spot bulbs work for this. I am not keen on all the expensive contrived set ups I keep seeing.

dpack



Joined: 02 Jul 2005
Posts: 39855
Location: yes
PostPosted: Wed Mar 31, 21 7:26 am    Post subject: Reply with quote
    

the old style low energy bulbs will provide heat and light for cuttings and germination for a week or two
modern ones made for the job are better

anything that needs growing up to a decent size needs good lights and environmental control

there are many types of light source, LED's seem to be the best yet for horticulture

grainknot



Joined: 26 Mar 2021
Posts: 11

PostPosted: Wed Mar 31, 21 8:35 am    Post subject: Reply with quote
    

From my understanding the newer grow light LED's also put out a mix of light wavelengths. It's a real shame that IKEA have stopped selling their little grow light strip (maybe check ebay?)

When plants are under it, the shadows show the colour mix through - if my GCSE physics serves me correctly - refraction. There is red and blue as well as white in the mix, so straight LED's might not be enough.

dpack



Joined: 02 Jul 2005
Posts: 39855
Location: yes
PostPosted: Wed Mar 31, 21 8:51 am    Post subject: Reply with quote
    

spectrum mix is a big subject

as a general theme, for seedlings and vegetative growth something close to spring light is ideal, for flowering a more summer spectrum is better

day length is another big theme

last big theme is every type of plant has perfect conditions for the stage it is at, so a general purpose rig needs to be average

Slim



Joined: 05 Mar 2006
Posts: 5994
Location: New England (In the US of A)
PostPosted: Wed Mar 31, 21 11:04 am    Post subject: Reply with quote
    

If only starting seedlings that will finish off outdoors, the cool white of the cheapest LED shoplights you can find will be fine.

jema
Downsizer Moderator


Joined: 28 Oct 2004
Posts: 27150
Location: escaped from Swindon
PostPosted: Thu Apr 01, 21 7:47 am    Post subject: Reply with quote
    

I have been googling around the spectrum issue and I think the general conclusion is....

Plants like light, you probably want 3k as that's cheap, but more specialised stuff like 4k and so on does not make a lot of difference.
It reminds me just a little bit of expensive speaker wire for HiFi

dpack



Joined: 02 Jul 2005
Posts: 39855
Location: yes
PostPosted: Thu Apr 01, 21 10:31 am    Post subject: Reply with quote
    

Slim wrote:
If only starting seedlings that will finish off outdoors, the cool white of the cheapest LED shoplights you can find will be fine.


yep, very like spring light

wellington womble



Joined: 08 Nov 2004
Posts: 15051
Location: East Midlands
PostPosted: Sun Apr 04, 21 12:38 am    Post subject: Reply with quote
    

The IKEA lights are very good, I would definitely buy more if I could get them. I’ve got some pink lights as well, but I don’t think they are as good (although it’s hard to tell, as I’ve had some timing issues, and I’m not sure I have quite enough lights for the area)

I went back to the spare room set up. It’s nice and warm, has a bathroom next door and I can check on my seeds in my pjs. I ripped up the carpet, put down a cork floor and took out the bed. No-one stays over anyway. The seedlings don’t mind sharing with the laundry, and I enjoy having some greenery to do my Yoga amongst. I’m planning to have plumbing through for the washing machine, so I don’t think it will be much bother to have a sink as well (the bath is on the other side of a stud wall, and there’s already a handy hole from where the bath waste leaked)

dpack



Joined: 02 Jul 2005
Posts: 39855
Location: yes
PostPosted: Sun Apr 04, 21 9:54 am    Post subject: Reply with quote
    

seems ok, just beware of the damp/ventilation thing

any water you add that evaporates/transpires has to go somewhere, outside is better than into the structure of your home

a good but basic dehumidifier might be a well spent few quid or get a fan and some ducting


wellington womble



Joined: 08 Nov 2004
Posts: 15051
Location: East Midlands
PostPosted: Sun Apr 04, 21 11:25 am    Post subject: Reply with quote
    

It’s not been an issue up to now. I just open the window when its warm enough. The beauty of using the spare room is that I can amble in absentmindedly twenty times a day while I’m on the phone or whatever, so I can keep a close eye on it.

dpack



Joined: 02 Jul 2005
Posts: 39855
Location: yes
PostPosted: Sun Apr 04, 21 1:52 pm    Post subject: Reply with quote
    

good

but worth being aware of

seedlings should be less "sweaty" than mature plants

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