Lettuce 'Raft' Type System

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The Lettuce 'Raft' Type System

 

Raft 1    Raft 2   Raft 3   Raft 4

Basically; cut out six holes in styrofoam or polystyrene and mount your 2 inch net pots. Lettuce seeds are planted in rockwool (or your preferred medium), put in the net pots and surrounded by hydroton. The whole 'raft' floats on the surface of the water, an air pump provides the necessary oxygen to the roots.

I'll be growing this with my 90 watt UFO LED light in the new grow room.

 

Weekly Pictures (Click to Enlarge)

Week 0 - Starting Week   Week 1   Week 2   Week 3   Change of light to CFL due to LED failure!   Week 4   Week 5   Week 5 - Pre Cut   Week 5 Butterheads   Week 6   Week 7 Butterhead 1   Week 7 Butterhead 2

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Peat
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I haven't tried stacking,

I haven't tried stacking, most of my grows have been indoor and hydroponic based - I'm only now just starting to get plants grown outdoors.

By the way, we'll all happily answer you if the advertising stops...

Smitten
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Peat: Have you tried setting

Peat: Have you tried setting up several stacks... for example using an old bookshelf and adapt it to grow vegetable in the different  shelves? That way you can really maximize the available outdoors space.

I just found out that you can buy Lady Bugs online? And apparently they're used as natural pest control... anyone knows if it really works?

Peat
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Updates to external broken

Updates to external broken links...

Peat
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Week 0 - Starting Week,

Week 0 - Starting Week, Saturday 6th February 2010

Here it is then, the lettuce raft using my 90 watt UFO type LED grow light.

Planted at the back left and front right are Tom Thumb Butterhead Lettuce, all the remaining four are a mixed lettuce seed - something along the lines of the AG standard ones.

The container has 15 litres of water in it, I'm using the General Hydroponics Flora 3-Part Series (Flora Micro, Flora Grow & Flora Bloom). The EC is 0.8 and the pH is 6.0 on the seedling mix, lighting cycle is 14 hours on/ 10 hours off. There are two air stones running below the surface and the light is 12 inches away from the plants.

 Let's see how the LED gets on then...

Week 0 - Starting Week Under LED     Week 0 - Starting Week

Peat
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Beth - minimal outside

Beth - minimal outside growing, the small garden is not really worth it. I tried tomatoes and cucumbers last year, the cukes did well but I lost all my tomato plants to late blight - sorta put me off ever growing them outside again.

Plans are a foot to relocate shortly, this will give me the space I require outside and a decent area in the garage to continue my water born experiments.

Ginger
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Washing grow rocks (hydroton)

Washing grow rocks (hydroton) is my least favorite. Feel guilty tossing them, but washing them... oy.

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Beth11
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Hi Peat,   Outstanding

Hi Peat,

  Outstanding results!  Enjoy that fabulous lettuce.  Agree that cleaning any growing system is a pain in the rear.

Beth

PS - are you an outside grower as well? 

 

 

 

 

Peat
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The AG is simple compared

The AG is simple compared with this, my hands still stink of bleach!

The white polystyrene raft (a great colour to choose), was green with algae and black from decomposed lettuce leaves which hide beneath the main plants - yuck!

Ginger
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Yum. Know what you mean

Yum.

Know what you mean about mucking out after a grow....

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Peat
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Week 7 (End of Grow) I've

Week 7 (End of Grow)

I've decided that the Butterheads are big enough for me now and I've taken them out of the system, the other lettuce that I cut back is not too impressive so I've ended this particular project. I now have to clean/bleach the whole lot, raft, container, hydroton and net baskets...  how I hate the end of a grow.

The Butterheads are quite big, over 12 inches in diameter and taste very good - I'm pretty happy as this was nearly a non-starter due to the LED failing.

So, there you have it - 'The Lettuce Raft' system, a good way of growing lettuce in particular, simple to build and simple to maintain.

Here are the two Butterheads, as usual, click on the picture to enlarge.

Week 7 Butterhead 1          Week 7 Butterhead 2

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