Showing posts with label deep water culture. Show all posts
Showing posts with label deep water culture. Show all posts

Friday, March 14, 2014

Krazy for Kohlrabi!

Kohlrabi is a forgotten gem.  With the resurgence in interest in heirloom and other older vegetables kohlrabi may be poised for a comeback.  Look at how kale is the current trendy food when not too long ago it was eaten only because it was cheap and easy to grow.

Kohlrabi is the royal cabbage.  While it looks like a root vegetable, it is actually the stem of the plant you eat.  The name comes from the German for Cabbage Turnip.  When you look at kohlrabi (especially the purple varieties) you can see how it looks a bit like a turnip.  However, it is a member of the Brassica family.  Just like cabbage, broccoli, cauliflower, and brussel sprouts it has been selected by man for the characteristic of the bulging stem.


Looks Like a Turnip Tastes Like Broccoli


I am currently growing them using a flood and drain grow bed, deep water culture rafts, and nutrient film technique tubes.  Much to my surprise they are growing best with NFT.  I really thought they would excel in the grow beds and that they would be too top heavy for rafts or tubes. 

They do lean in DWC rafts and for some reason their bulb becomes elongated.  Doesn't change the taste but if you are growing for looks, well it looks odd. 
Leaning Tower of Kolhrabi


If you are growing for looks, you probably aren't growing kohlrabi to begin with because well
                     it is an odd looking veggie.
                                                                 Isn't it?







Kohlrabi can be eaten raw or cooked.  The taste is like the stem of the broccoli with a little bite of radish thrown in for a kick.  The smaller the "bulb" the more tender it is.  No matter the size, you certainly want to peel it before you eat it cooked or raw.  It has a very tough outer skin.

It is used in Asian and German cooking.  I prefer it cooked, but that is probably because that is how my Mom cooked it. 

If you look on the internet, you will find recipes for cooking the bulb and leaves.  I've never eaten the leaves....I was taught incorrectly that the stems and leaves were toxic to humans.  As an adult, I realize my Dad probably just said that because he didn't like the leaves. 

If you want to try it for yourself, it is very easy to grow in soil or in an aquaponic garden.  It likes cooler temperatures so you can direct sow seeds outdoors 4 to 6 weeks before your last frost.  So get them in the ground soon! They like a pH in the 6's and they need water to develop that fleshy stem.  If you grow in soil, beware that they have shallow roots.  Keep them well mulched if using soil. I haven't had a problem with cabbage worms but I did have to spray for aphids with my pepper/garlic spray (read about that here) on one set of tubes.  If using aquaponics, give them a try in NFT tubes.  I've been getting great results in both small and large tubes.

Are you krazy as I am for kohlrabi?

Wednesday, January 8, 2014

A Tale of Two Eggplants

I love nightshades.  They are one of the most diverse families of plants and contain some of my most favorite things to eat.  The Solanaceaes include tomatoes, peppers, eggplants and potatoes.  It also includes petunias and tobacco..  You can keep the potatoes, petunias and  tobacco.  I don't smoke, I don't like to eat potatoes ( I prefer rice) and petunias stink. But tomatoes, peppers and eggplants....Oh My!  And cooking all three together?  Even more Oh My!

I am currently growing several types of tomatoes, peppers, and one type of eggplant.  I have had poor luck with germinating pepper and eggplant seeds this season for some reason.  I put my eggplants in two different test systems this time to see if there was a difference in plant growth or production.  Early results say that my eggplants are preferring a flood and drain environment to a deep water culture (DWC) system.

Here is the picture of the eggplant in my flood and drain test bed. 
The largest leaf on this plant measures 9" wide and is 11" long. As a matter of fact I had to tie it up today as the leaves are so heavy the plant had flopped over and was shading the rosemary.

Here is a picture from the deep water culture test bed.
The largest leaf on this plant measures 4" wide and 4" long. It has just flowered.  Same type of plant, planted at the same time.  By the way, look in the background of this picture and you can see how much my onions love DWC. If you don't have onions in your DWC get some now!

The flood and drain system is only slightly older than the DWC by about 2 weeks.  Both systems were cycled early last spring so they are approaching their first birthday.  Both have the same number of fish.

So far, it is looking like flood and drain is the way to go for growing eggplant.  Part of making sure your garden can survive is testing things out to see what works best.  Before growing anything on a larger scale, I run a test garden. I am also currently testing peppers in flood and drain versus nutrient film technique (NFT).
Stay tuned for those results.

How do you grow your eggplants?