This is for English Ivy, but will apply to most ivy species!
1: Ivies LIKE the right light: medium and bright. Ivies like medium light best, but will also do well in bright light. While you can grow ivies in low light indoors, they won’t like it and won’t last as long. If you have an ivy variety with white variegation on the leaves, it likes less direct light than those with green leaves, so if you have lower light levels you may try varieties such as 'Ingrid Liz', 'Little Hermann', and 'Nena.' Variegated leaves are more susceptible to damage from too much sun.
2: Ivies DON'T LIKE to be overwatered. Try not to be over zealous when watering your ivy. Ivies don’t like wet soil. Wait to water until the top inch or so of the potting mix dries out. It's best to keep this houseplant a little too dry than little too wet. (This is true for most houseplants.) Also, make sure that the pot the ivy is growing is has drainage holes. So, here’s a thing that will throw you: If you overwater your ivy, the leaves will turn brown and dry on the edges. This symptom seems like the plant needs more water. The reason the leaves turn brown is that the plant roots are too wet and are basically drowning. Overly wet roots can’t deliver nutrients or, oddly, water to the plant. So, keep your ivy on the dry side.
3. Ivies LIKE humidity. While ivies don’t like overly moist soil, they do like moist air. You can increase the humidity in your home—or at least around your plants. To do this: Add pebbles to a saucer, then add water. Set your ivy on the pebbles and the water will evaporate, raising the humidity around the plant.
4: Ivies DON'T LIKE to be under watered (because it can lead to pest infestations). A too-dry plant is a stressed plant. And a stressed plant is susceptible to insect infestations or disease. Winter is especially rough on ivies. Lower light levels and dry air from furnaces and fire places stress out plants. And when plants are stressed, pests, such as spider mites. might attack. These little suckers (they literally suck the juices in plant leaves) like warm and dry conditions. If you have spider mites, you’ll know it: watch for little weblike structures on the undersides of leaves. The mites themselves are tiny and black—like little specs. They reproduce very quickly so you could have an infestation before you know it. To get rid of spider mites, spray them off the leaves with water or apply Neem oil.
5. Ivies LIKE temps on the cool side. Ivies are native to cooler climates, originating in central and northern Europe. (English ivy is not a native plant; it was brought to the United States by colonial settlers.) So, ivies don’t like really hot temperatures indoors as some tropical plants do. They do best in cool rooms that remain between 50 to 70°F (10 to 21°C).
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