More Scraps

I just wrapped up another experiment in kitchen scrap propagation.  My subjects this time were an inch off the top of a carrot and an inch off the bottom of an onion.  Both vegetables were suspended in water in soda bottle greenhouses*, using the inverted top to hold them at the water's surface.  I can report one possible success and and one failure.

The carrot did not really show much growth.  There may have been a hint of leaf production but nothing substantial and no root development.  The portion of the carrot the remained submerged looked rather nice, though it had a mildly slimy texture by the end of the experiment.  The top portion of the carrot shrivelled up and discolored.  Next time I plan to keep just the stem part out of the water.  Next time I also need to find another way of suspending the carrot, as it kept tipping over in the bottle's neck when I changed the water.

The onion seemed to be growing.  There were, at least, roots forming, as seen in the photo.  There was no indication of top growth, suggesting that next time I need to leave more onion on the scrap.  The onion, too, would benefit from being suspended in a different way.  In this case tipping wasn't an issue but the outer layer of the onion that was in constant contact with the bottle began to rot.  The onion is buried in the carrot bed next to my mystery garlic.  We'll see if it survives being planted out and grows.

I probably would have allowed the onion to grow more before moving it but I need the green house for another experiment (seed starting for a three sisters garden).  Stay tuned for more scraps!

*I will have to make a post dedicated to these.  Probably in the fall when there aren't so many interesting growing things to post about.

How Not to Grow a Carrot

This is just a quick update to my kitchen scrap gardening experiment.

I wanted to see if a carrot would regrow from a carrot top if it were placed in potting soil.  I put the potting soil in a newspaper pot to ease the transplant shock from eventually moving it out into the garden and contained the whole thing in a soda bottle greenhouse to keep it moist.  I set it on a sunny windowsill and waited.

I don't think, now, that this is the best way to grow carrots.  While there are some leaves beginning to emerge from the carrot, there are no roots and the the whole thing look and smells bad.  I suspect that the greenhouse is at fault, keeping everything a little too moist.

Time to try something new.

Kitchen Scrap Gardening?

Imagine for a moment that you've bought some carrots at the supermarket to make pot pies.  Most of the carrot, of course, gets diced up, cooked, and eaten.  If you're a gardener then the peelings should already be headed to you compost pile to be broken down into good stuff for your plants.  But if you really want to squeeze a little more usefulness out of that carrot, perhaps you can save the top and grow a whole new carrot!

This is a prime example of why I am, perhaps more than any other adjective, a frugal gardener.  Anything that I can acquire, repurpose, or make for free I will.

I remember first coming across this notion in an old children's book of projects*.  It suggested using both carrot tops in a tray of water and a sweet potato suspended in a glass to grow an indoor jungle.  I must have tried the carrot-in-a-tray idea a dozen times growing up but it never worked for me.  Usually the carrot dried out and the cat was blamed for drinking all the water.

Now, however, I can now report some success!  In January I set up an experiment at a local children's museum to see if the tops of carrots (and some other, similarly structured vegetables) would grow in glasses of water.  All the samples were prepared similarly, with most of the root and any leaves removed before being suspended in a glass of water.  The water was refilled as needed and completely changed a couple of times a week.  Here are the results so far!

The carrots seem to be preforming best.  As seen in the photo, both carrots have lots of leaves and roots filling their cups.  It is important to note that the carrots in a manner very different to the other samples.  They produced roots fairly quickly (a week or two, I believe) but didn't put out any leaves for at least a month.

One of the two radishes is doing well.  It produced new leaves quickly, followed by root growth.  The other radish reportedly turned to goo within a week and was thrown out.

Only one of the two turnips is shown, though both turnip tops produced leaves and then roots.  The turnip shown quickly sent out lots of leaves and roots, followed by a tall stalk that now has small flowers at the top.  After two months some of the leaves it first produced started dying.

The beets needed to be watched closely.  For the first month they tended to leech red pigment into their water and grow a slime where they contacted the water.  This was regularly rinsed off.  The beet shown sent out leaves within a week followed by roots soon after.  The other beet grew leaves just as fast but didn't produce any roots until two months later.

While these results demonstrate that the discarded tops of root vegetables can grow new leaves and roots, they do not yet show that they are capable of regrowing the tap root that we would like to harvest (aside from the possibility of eating the turnip and beet greens).  Will these carrots ever produce a new carrot?  I don't know yet.

Other questions remain also.  Will the vegetable tops root in soil in addition to water?  What other vegetables can grow this way?  I have read that onions can be grown in a similar way from their discarded bottom ends.  I also remember reading somewhere that lettuce can grow again from their root ends.  Pineapples can supposedly be grown from their discarded tops, though I've never had any luck with this.  Avocados pits can, famously, be sprouted in a glass of water.  What other grocery store produce can yield good seed?



*On a side note, if anyone can remember the title of that book, I would love to know.  I remember it being illustrated in a style similar to P.D. Eastman, if that helps.