Cedar Experiment, Week Six

This is the sixth installment of me answering the question: do cedar beds really inhibit the growth of vegetable seedlings?  This experiment looks to see if cedar beds lined with cardboard will help veggies grow bigger and faster.

This week, the beds look nearly neck and neck.  I honestly can't tell the difference between most of the seedlings.  The only slight variation is in the carrots and the pole beans; those are faring better in the lined bed, but only slightly.

Lined Bed

Unlined Bed:

Only time will tell which one produces more food!

Cedar Experiment, Week Five

his is the fourth installment of me answering the question: do cedar beds really inhibit the growth of vegetable seedlings?  This experiment looks to see if cedar beds lined with cardboard will help veggies grow bigger and faster.

Why even grow in garden beds at all?  Some famous gardeners, like Steve Solomon from Territorial Seed or John Jeavons, the author of "How to Grow More Vegetables," are advocates of growing in amended but native soils.  Those who claim beds are best, like Mel Bartholomew of Square Foot Gardening state the reason for raised beds is that they'll help the soil drain faster and warm faster in the spring. My own experience has shown me that I can use Jeavon's process of double digging and combine it with raised garden beds to the benefit of my garden.  If I dig out the area to contain a bed eight inches down, mix that with my imported soil , then add that mix back into the bed, I get the microbial ecosystem from my native soil along with the lighteners I add to the imported soil.  Root crops and potatoes seem to love the amended native soil raised beds, while cabbages and squash fare best in native soil with only a small amount of extra compost.

Here's the Lined Cedar bed:

And the Unlined Cedar Bed:

The marked differences are still apparent.  The beans and carrots are faring better in the lined bed,  the beets are bigger in the unlined bed.  Can't wait to eat 'em... and of 'em. 

Cedar Experiment, Week Four

This is the fourth installment of me answering the question: do cedar beds really inhibit the growth of vegetable seedlings?  This experiment looks to see if cedar beds lined with cardboard will help veggies grow bigger and faster.

I've been doing research on companies that install raised garden beds and have found that several companies offer both hemlock and cedar beds.  The cedar beds come at a premium; no doubt because the cedar beds are thought to last longer in wet weather and the wood is more expensive.  No one has mentioned on their site that cedar can inhibit growth.  The extension service from Washington State University does not bleive cedar inhibits seedling growth per se, but they do mention that cedar can kill off beneficial soil fungi.

Here are images from the cardboard lined cedar bed:

And the unlined cedar bed:

The differences are becoming clearer.  The bed lined with cardboard has marked larger bean plants and more sprouted carrots.  On the other hand, the unlined beets are fairing better than their lined friends.  Only time which box has the largest overall yield.

Cedar Experiment, week 3

I'm a little behind posting this one.  Wet weather strikes again!  This is week three of finding the answer to the question: Is it true that garden beds made of cedar will harm plant growth?

Cedar Box with cardboard liner:

Cedar Box without cardboard liner:

The beans in the lined box are definitely taller than the beans in the unlined box.  Both boxes have about 4 carrots up, and it looks like both  boxes have quite a few beets up.  The lined box seems to have slightly more beets than the unlined box.  They are neck-and-neck when it comes to carrots.

Check back next week for more pics!