Leaf Mold // What it is, and how to use it.

Leaf mold is fully decomposed fallen leaves. In nature this process happens on the forest floor. The freshly fallen leaves act as a mulch which helps retain moisture and regulate the soil temperature. The decomposing leaves underneath return minerals and nutrients back to the soil. This cycle is part of a healthy forest ecosystem. We can recreate this process with fallen leaves from our yards, making use of yard waste. Unlike compost which is made from mostly bacterial decomposition, leaf mold is made from fungal decomposition. The result is sponge-like, moist, and relatively low in nutrients. This makes it great for improving the structure of our soil.

Fungi is always present in leaves, even when they are on the tree. In autumn when the leaves fall, these fungi colonize the brown material and start to break it down. There are three phases to this process of decomposition. The first wave of fungi (ascomycota) break down the easily available parts like: organic acids, oligosaccharides and cellulose. In the next phase different fungi (basidimycota) break down the more difficult woody bits of the leaf. The last part of this process is finished by saprotrophic fungi. These fungi help move the nutrients and minerals around the soil by creating extensive webs. There are many other microorganisms that contribute to the decomposition of leaves, but this process is dominated by fungi. As these organisms die, the minerals they have eaten become bio-available to the plants.

There are a few different methods for making your own leaf mold. Basically, you collect your leaves and pile them in a breathable container (like chicken wire), keep them moist and let them decompose for a year or longer. If you shred your leaves it will speed up the process. The type of leaves you choose will effect the outcome. For example pine needles are generally more acidic, oak leaves are high in cellulose which will take longer to break down. Some plants contain compounds that inhibit growth, so you would not want to include them in your leaf mold (black walnut for example). Here are some videos of my favorite gardener Monty Don talking about leaf mold:  in a plastic bag  || leaf mould

Leaf mold is great for seed starting mixes and potting mixes. Remember leaf mold is low in nutrients, so you will need to amend it if you plan to use it this way. Leaf mold can be added to raised/garden beds to improve soil structure. It can help hold moisture in sandy soils, and help break up heavy clay. You can use it as a mulch around plants and the minerals will slowly move down into the soil. This will improve the overall health of the soil, and get better each year. Basically, leaf mold is great and you can use it anywhere in the garden!

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Seed Starting Recipe

We want our plants to have the best start they can in life, and that means caring for them from the beginning. Most of the professionals I respect recommend a mix of 1/3 structure, 1/3 drainage and 1/3 microbiology. Here are a few popular ingredients to use when developing a seed starting soil.

STRUCTURE : All young plants have delicate roots, so you want a soil that is light, low in nutrients, retains moisture, and is not easily compacted. When the soil is light, oxygen can easily get to the roots which is important for plant health. Sphagnum peat moss is probably the most popular, and for good reason. SPM is slightly acidic, which is good for vegetables, and also means it will take alkaline amendments well. Because SPM is harvested from bogs, there is a debate about it’s sustainability, and the long-term impact of harvesting SPM.  Coconut Coir is a by-product of the coconut industry, and arguably more environmentally conscience. It does have a few drawbacks though, it can contain salts (because its washed in sea water) and too much salt can inhibit growth, especially in young seedlings. Leaf Mould is made from decomposed leaves. Unlike compost, which is mostly broken down by bacteria, leaf mould is made from fungal activity. This means it has less nutrients, making is a perfect medium for your seed starting mix. The only drawback to using leaf mould, is that it takes about a year to fully decompose.

DRAINAGE : Its important to build a soil with good drainage because roots can rot if they are too wet. Perlite is made from volcanic minerals, and is expands (like popcorn) when heated. The result is small pebbles that are very light and do not retain much moisture. Pumice is another volcanic mineral similar to perlite. It is great for soil structure, and it retains a little more moisture than perlite. Vermiculite is another expanded mineral for aeration. The granules are very light and they hold on to a lot of water. Sand Grit are also good options. These are much heavier, and would be good if you need weigh down your soil.

MICROBIOLOGY : Plants get their nutrition from a complex web of living organisms in the soil. We need to inoculate the soil so that our plants can form a symbiotic relationship with these organisms from the beginning. Compost is made from decomposed organic material, that is green (nitrogen) and brown (carbon). The decomposition is caused mostly by bacteria. The composting process creates heat which will kill most harmful organisms and diseases. Mushroom compost is made from the spent organic matter used to grow mushrooms. That means it has more fungal activity than compost. Vermicompost is organic matter that has passed through the digestive tract of a worm. The experts that I am following right now use vermicompost (worm castings) in their mixes, and prefer it over compost.

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Fatsia Japonica

Fatsia Japonica : glossy-leaf paper plant : I called it the hand plant for a long time.

Native to Southern Japan, Southern Korea, and Taiwan. This hearty evergreen shrub produces white umbels in late autumn and little fruits in spring. The most interesting bit about this plant is the inter-generic hybrid Fatshedera Lizei.

My Fatsia has been transplanted, moved (to a new yard), potted up, chopped in half, and propagated. This plant is very resilient, and beautiful. *tip* when rooting, you can trim the leaves so they don’t need as much water.

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A truly southern bridal luncheon

For my now sister-in-law Pippi. So thankful to be part, and it was a beautiful party to photograph!

 

burlap vases beautiful light setting the colors the ladies that hat! The bride Pippi and her mom!

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visitors

I got to spend the afternoon with these lovely folks! It was really fun to show them around the city while we did portraits. maybe I should start giving tours…

 

chas02 chas14 chas69 chas72 chas74

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Masika April

Yes I know its May, I’ve been a little late posting. Jo is the sweetest teacher. This was a beautiful practice in a beautiful coffee shop. Thanks to all the Charleston yogis who participated!

 

set your intention childs pose warriors warrior 2 balance caryn antos jo says engage the fingers forward fold toes! collective coffee is a beautiful space! bracelets relax! jo takes care of her students. remember your intention gratitude time for coffee! jojo is a sweetheart!

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