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Ask UGM. Frequently Asked Questions
Second is SOIL. Do you intend to grow your plants directly on the ground or in pots? For beginners, I suggest that you start with container gardening. Use quality potting mix to allow your seeds and seedlings to grow properly, with enough air and space to allow their roots to grow properly.
Third is SEED. Always use good reliable seeds from reputable local seed producers. Their seeds have been tested to withstand our tropical environment, therefore greater chance of germination.
To learn more about seed starting, check out my blog How to Start Seeds in a Seedtray: A Step-by-Step Guide.
Check out this blog post Guide to Transplanting Your Seedlings .
check out this blog post All about Sunlight: Basic Principles a Gardener Needs to Know.
Another reason is because of lack of nutrients. Applying vermicast or any organic matter usually cures this problem. Sunlight deficiency also causes plant leaves to turn yellow. Leaves tend to look pale and droopy. Expose the plants to sunlight or add more grow lights if sunlight is limited.
After eliminating all of the above possible causes and the yellowing of leaves still occur, it could be due to a viral infection. The signs include the leaves turning yellow and falling off their branches. Eventually, the plant itself starts to wither and die. In this case, there is not much that we can do. Discard the plant entirely, and consider changing the type of crop to grow when using the same pot or soil.
Check out my blog post Guide to Transplanting Your Seedlings to learn more about how and when to transplant the seedlings.
Another reason is due lack of pollination. This happens usually in places that can not be reached by bees or other natural insect pollinators, like in high-rise apartments. You can help them to pollinate by giving the branches a gentle shake everyday.
Diatomaceous earth (DE) is also an effective way to treat soft-bodied pests, like those worms that feed on leafy vegetables, or ground crawlers like snails. Dust the leaves with DE powder to get rid of these worm pests, or sprinkle on the soil around the plants to get rid of parasitic nematodes and tiny snails.
(1) Seeds are already stale or expired;
(2) The temperature is not conducive for the particular seeds to germinate;
(3) Fungus causing the seeds to “dampen off”. The use of good quality seedling mix or potting media helps improve the germination rate of most seeds, in most cases. To learn more about seed germination, check out my blogs on Seeds and Seed Germination ,How to Start Seeds…
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