Hardening Off and Potting On at the TC3 Farm

This week on the TC3 Farm: Hardening Off and Potting On by Hannah W.

hardening off seedlings
Seedlings Hardening Off

Now that the days have been getting warmer, if you walk up to the greenhouse on the TC3 farm, you’ll see a full table of seedlings outside, getting used to the wind and cooler temperatures. After a while, they’ll be brought back inside for the night. This process of “hardening off” helps tiny seedlings prepare for life in the farm field. As they grow, trays of seedlings are gradually moved farther from the greenhouse heater, then eventually placed on the ground, where it’s cooler still. 

seedlings ready to plantThe final steps in hardening off involve moving the seedlings outside. Even though the plastic on the greenhouse seems thin, it does offer a bit of protection from the sun, so plants also have to get used to the brighter sunlight as they transition outdoors. Seedlings may be brought outside for just a couple hours at first, then graduate to spending the whole day outdoors.

potting on tomatoes
Potting On Tomatoes

This week, the laboratory portion of class featured a tomato potting-on extravaganza. “Potting on,” refers to transferring a plant into a larger container with more soil. As the seedling grows, its roots spread out through the soil in the container, absorbing nutrients. After a while, the seedling will eventually run out of nutrients in the small area of soil it has to work with. 

Tomato seedlings also compete for light, which is another reason to pot them on. Tomatoes, as warm-weather crops, spend a long time in the greenhouse and need space to spread out their leaves. For plants like bok choi, which are cold-hardy and can be planted out in the field soon, there’s no need to move them to larger pots.

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Farm Preparation and Planning – Spring at the TC3 Farm

Farm Preparation and Planning at TC3 Farm – Student Post by Murray

Farm preparation and planning Planting seeds properly is the most important job on the farm. The start of a new plant is so crucial and if attention to detail is ignored, a huge failure in the season would be possible. Seeding is not as simple as one might think; it involves many hours of preparation and planning. Also, plant data and growing knowledge is key for success. Understanding how the particular seed grows, what temperature it needs, the best way to transplant/direct seed or what nutrients the soil needs, the grower must understand these basics.

Seeding is very important, in fact, one of the most important in determining the whole season’s success. First, using seedling trays is necessary if the seedlings have to be transplanted. Seedling StartsThis gives the control of their environment and also proves to be easier when transplanting. It is also important to know how many seeds per cell are needed as the germination rate may be high or low and compensation is needed for the differences in crops. A great company where TC3 Farm buys its seeds is called High Mowing Seeds.

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