Wednesday in the Garden — Bamboo, Bananas and Biochar

Linda L. is loading garden mix 
from a pile near one of the 
two bamboo clumps.

Fall planting season is in full swing and our gardeners are busy getting seeds and seedlings in the ground. 

We wanted to give you an update on our clumping bamboo planted in April 2019, and our biochar trial, which got underway at the garden workday on Wednesday.

This looks like a lot of bamboo, but both clumps of bamboo are well behaved and although tall, do not take up much space on the ground.

Clumping bamboos usually develop new shoots in the fall.   A little over a month ago, Louie D. noticed some coming up around the edges of the clumps. She knocked them over and removed them (this is easy before they harden). This left those coming up in the middle. The spiky new shoots can be seen at the top of the clump.  The shoots emerge from the rhizomes at their mature diameter and grow to their full height very quickly, often in a matter of weeks.

The new culms (the bamboo version of a trunk) have grown larger in circumference each year. We like to use them to define paths in the forest garden, and to build garden structures, such as trellises and tomato supports.

The footprint of the clump
is not very large

The bamboo stays erect, except when it rains.  Then the weight of the water on the leaves causes the culms to arch over, sometimes reaching the ground.  They usually return to an upright position after they dry.  If they don’t, we cut them off so they don’t get in the way. The area under the clumps is shady, quiet, and cool. We’re thinking of putting a bench there so we have another place to hang out in the heat.

Clumping bamboos usually belong to the Bambusa genus.  Those in the VegHeadz garden are Bambusa textilis gracilis and  Bambusa chungii barbelatta

Something else we noticed this week is the bananas. After a cold winter and a week of snow on the ground, the bananas got a slow start this spring.   They just recently sprouted a number of huge clumps of bananas. There’s little chance they will mature before cold weather later this fall, but we’ve learned that even when they’re not fully developed, they can be harvested and ripened.  To learn more about our ripening experiment, insert “banana ripening” in the search box in the right sidebar. 

 

When fully developed, this would 
be a substantial
crop of bananas

Banana blooms are complex and
interesting

There is a new row of florets under each bract layer of the red blossom or “heart.” Each row of florets develops into a “hand“ of bananas. Cutting The blossom off will stop new bananas from forming, and direct the plant’s energy into maturing the ones that have already emerged.  The florettes are edible, and the blossom contains an edible core in the center. These are used in Asian recipes.

Finally, we are preparing to move our biochar trial into the garden.  Four different versions of a compost/biochar mixture have been “marinating” and have now been added to the trial plots.  

Last week—an overgrown
 watermelon patch—and weeds

Watermelons and weeds gone
Four 4 x 4 beds

Six inches of soil removed from 
beds and mixed together to
provide a uniform growing medium
Photo:  Lisa Jacobson

Four different mixtures of 
compost and biochar were 
added to the beds along 
with the mixed soil from the beds. 
Photo:  Lisa Jacobson

The workers who made it happen

Ready for the next phase.   In a 
couple of weeks we’ll plant the
same crops in each bed.
Photo:  Lisa Jacobson