Before transplanting seedlings into the ground, it is wise to nourish them and apply an immunostimulating treatment. This guidance reflects recommendations from a gardening expert associated with the Russian Union of Gardeners, and can be useful for readers planning a spring garden in North America as well.
With May approaching, there is a tight window for getting seedlings ready. While they stay indoors and acclimate for planting, feeding remains important. A biweekly feeding schedule helps build healthy root systems and robust growth. Since time is limited before the transfer, a single feeding can be considered in the final week prior to planting, provided there are no signs of stress in the plants.
Following the feeding, an immunostimulating treatment can be administered three to four days later. Among accessible options, succinic acid is highlighted as a practical and easy-to-use choice for this purpose. It is recommended to water seedlings before they are moved, and to transport them in tall containers that help keep roots undisturbed during transit.
Another practical step is to water the seedlings two hours before they are placed in the greenhouse. Adequate pre-plant watering helps the roots endure any root damage and reduces the chances of soil shock once they are potted into new soil.
Previous guidance from a construction-hypermarket chain specialist suggested placing seedlings on south-facing windowsills where they can receive ample natural light. If a north-facing position is all that is available, additional lighting becomes important. In this case, a dedicated grow light that emits both red and blue spectrums can be beneficial to support healthy photosynthesis and steady growth during early stages.
There is also a note about saplings and how, when stressed, growth can accelerate once they adapt to their new environment. This is a reminder that careful handling and gradual acclimation can help seedlings settle more quickly into their new home in the garden.