4/18/2023 0 Comments Seed to stemThis results in unbalanced seedlings that are “all legs.” Problem #3: Inconsistent moisture Overly high temperatures, such as those maintained over a heating mat or under a humidity (germination) dome, can lead to a rapid growth spurt in seedlings.Īs soon as the seeds germinate, they respond to the heat by putting up tall, skinny stems before leaf production has a chance to catch up. If it seems like your seedlings more often than not have trouble growing straight up or forming thick, sturdy stems, read on to figure out how to save your leggy seedlings. I’ve transplanted hundreds of tall, floppy seedlings with success, most of which went on to recover and have normal, productive yields. The good news is, leggy seedlings can usually be fixed before it’s too late. They’re a little more challenging to harden off, and are less likely to withstand wind and rain once they’re in the ground. If uncorrected, the condition can weaken their stems, stunt their growth, or make them defenseless against pests and diseases. They end up with pale, skinny stems and fewer, smaller leaves than healthy seedlings. The seedlings desperately stretch toward the light source, so much that their stems grow too long and lean in proportion to their leaves. Beets, in particular, sprout multiple seedlings from a single seed ball, making them easily overcrowded and prone to growing leggy. Tomato, zucchini, broccoli, kale, lettuce, and beet seedlings tend to get leggy because they’re started in spring when daylight is still limited. Leggy seedlings often happen with seeds started indoors and any type of vegetable, herb, or flower seedling can be affected. Why are the seedlings so spindly and stretching toward the sun? This isn’t a catwalk, ladies! If you like to give your seeds a head start on the season by sprouting them on a sunny windowsill, you may be wondering right about now…
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