Now that you know when to start fertilizing the seedlings, you may also want to know what are the best fertilizers, how to apply them and how frequently to use them without burning the seedlings.
You should first solve the problem and not start the fertilizer until the seedlings look normal. The seedlings are falling on the soil – they may be infected by mold.The tips of some of the leaves are dry and brown – they are burned by too much light, sun or fertilizer.The seedlings are tall and leggy – they need light.The leaves of the seedlings are droopy – they need water.When the seedlings are stressed, they will tell you. Feeding fertilizer to stressed seedlings will make the condition worse. Knowing when not to feed the seedlings is as important as knowing when to feed them. If they have, you are ready to start fertilizing the seedlings. Check your seedlings whether they have at least one set of true leaves on them. The seedlings will survive just fine without any fertilizer or added nutrients until this stage.Ĭotyledons turn yellow and eventually fall off as seedling grows.Īfter developing the first set of true leaves, the plant needs additional nutrients. Cotyledons act as surrogates for the true leaves. The function of cotyledons is to absorb sunlight, turn it into food and send the prepared food to the entire plant until the first set of true leaves develop and take over their regular duties.
When the seeds germinate and peek out of the soil, they first develop ‘Cotyledons.’ Cotyledons look little different than the actual leaves your plant seedlings eventually develop. The set of leaves above cotyledons are ‘the first set of true leaves.’ It is because the nutrients required for the seedlings to develop the first set of leaves, called ‘Cotyledons,’ are already packed in the seed embryo.Īs you can see in the image, the first two leaves, closest to the soil, are cotyledons. You should start feeding your vegetable and flower seedlings with a mild dose of fertilizer when they have first sets of true leaves. In this guide, you will find answers to the most frequently asked questions about fertilizing seedlings and the best fertilizers options suitable for the young seedlings. These are common questions every first-time seed starter faces. But most of the new gardeners have no idea when, what and how to feed their tomato and other seedlings. Those seedlings survive better in the garden once transplanted and produce more harvest over the season. While whether you should fertilize seedlings is a matter of personal choice, many studies suggest supplying additional nutrients and seedling fertilizer results in robust seedlings. Seedling fertilizer is a controversial topic among master gardeners.
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