To soil block or not to soil block, that tis the question

Listen, soil blocking is fantastic, provided you have the time to a) discover the ideal soil recipe and b) create the soil blocks yourself.

In our cultivation process, we employ a diverse array of planting methods and tools to maximize our efficiency and success rate. Specifically, we utilize a combination of soil blocks, which are compacted cubes of soil that provide an ideal environment for seed germination, as well as seed trays that come in two different configurations: one with 97 seed cells and another with 72 seed cells. These trays are designed to hold individual seeds in separate compartments, which allows for organized growth and easy management of young plants. Each cell provides a contained space that encourages healthy root development and minimizes competition among seedlings.

In addition to these traditional methods, I also incorporate what I refer to as "free sowing trays." These trays are particularly useful when I am uncertain about the germination rate of the seeds I am planting. Instead of placing one seed per cell, which can lead to wasted space if germination is low, I scatter a larger number of seeds across the tray. This method allows me to maximize the use of available space while still giving the seeds a chance to sprout. Once the seeds germinate, I monitor their growth closely.

As they develop, I identify the strongest seedlings that emerge and select a few of them for transplanting. This is done once they have produced their first set of true leaves, which indicates that they are strong enough to thrive in a more spacious environment.

Are you curious about what the term "bump up" means in this context? The "bump up" process refers to the practice of transferring a seedling to a larger cell or pot when it has outgrown its current space. This is a crucial step in plant care, as it prevents the seedlings from becoming root-bound—a condition where roots grow too densely in a confined space, leading to stunted growth and poor health. By moving the seedlings to a larger cell, we provide them with the room they need to expand their root systems, access more nutrients, and ultimately grow into robust plants ready for transplantation into their final growing locations. This careful management of seedlings ensures that they develop strong, healthy roots that are vital for their future growth and productivity.

Getting back to the fascinating technique of soil blocking, we have finally discovered a soil recipe that has proven effective for us over the past three seasons. Throughout this time, we have meticulously tested and refined our mixture, and I must say, I have been incredibly pleased with the results we have achieved. The consistency and health of our seedlings have greatly improved, allowing us to cultivate a more robust array of plants. If you’re interested in delving deeper into our successful soil recipe and the methods we employ, I warmly invite you to join our upcoming workshop dedicated to cut flower gardening. During this workshop, we will go into much greater detail about our soil mix, the specific ingredients we use, and the rationale behind our choices, providing you with valuable insights to enhance your own gardening practices.

Soil blocking is an exceptional method particularly suited for seedlings that are sensitive to being transplanted or those that develop a tap root, such as the cone flower, which is a prime example of this type of plant. For these delicate seedlings, we start them directly in a larger size soil block, which allows their roots to establish more freely without the stress of being moved from one container to another. This approach minimizes root disturbance and promotes healthier growth. As the seedlings mature, they undergo a hardening-off process, which is crucial for acclimatizing them to outdoor conditions. Once they are adequately prepared, we then translate them out to the field where they can thrive in their natural environment. This method not only enhances the survival rate of the seedlings but also contributes to a more vigorous and productive garden overall.

We don't always have the time for soil blocking, but I do find it worth the extra effort for the health of the seedlings before they go outside. Soil blocking, a method that involves creating small blocks of soil to germinate seeds, offers numerous advantages that can significantly enhance the growth and vitality of young plants. This technique not only promotes healthier seedlings but also encourages a robust root structure that is crucial for their development. It's so important to have good root structure for your plants so they have more resilience to whatever the outside world throws at them. A well-developed root system allows plants to access water and nutrients more efficiently, which is essential for their overall health and growth. Additionally, strong roots can help plants withstand environmental stresses such as drought, temperature fluctuations, and pest pressures. By investing time in soil blocking, gardeners can ensure that their seedlings are not only better prepared for transplanting but also more capable of thriving in the challenging conditions of the outdoor environment. The initial time and effort spent on this method can lead to a more successful and bountiful garden in the long run, making it a worthwhile practice for any dedicated gardener.