It’s actually pretty simple to make sure that your Amaryllis grows straight. All you have to do is pay attention to it and turn it every so often.
As you probably know, the Amaryllis puts out it’s lovely flowers on a tall stalk. However, just like many other plants, Amaryllis has a tendency to bend towards the source of light.
If you notice that your Amaryllis stalk or stem is starting to bend as it seeks the best source of lighting, simply turn the pot half way. The sun or light source will draw the stem toward it again and the plant will “accidentally” right itself and end up with a straight stem.
Turn your Amaryllis’ vase or pot a quarter or half turn every few days, or at least once a week to keep it straight throughout the growing season.
This is actually a good thing to do with many of your houseplants in order to have full and healthy foliage all the way around the plant.