There are advantages and disadvantages to growing herbs like sage in pots. The disadvantages are that the plants usually aren’t allowed to get as large and they need to be watched more carefully since the soil in pots can dry out faster. The advantages are that it is easier to water them, harvest them, control the amount of sunlight they get and they are easier to get to when you want fresh herbs. They are also a solution when you don’t have outside room to plant them. Herbs can even be grown in apartments. A big plus is that they can be grown all year long.
Pots for Sage
Sage has a moderate root system, meaning that the roots are intermediate between being deep and shallow. When grown in a pot, the plant should have room for the roots to expand, but unlike plants like tomatoes, the pot doesn’t need to be very large.
A pot that is six inches in diameter and six inches deep works well with sage. It should be noted that sage is a hardy perennial, so it does well in larger pots, particularly after the first year. The leaves will tend to be larger when the plant has more room. However, since sage is a member of the mint family, it will grow in a six by six-inch pot, with reasonable care. The pot in the picture is from Bonnie’s Plants and it is a six by six-inch pot.
The pot should also have drainage holes in the bottom. Potted sage shouldn’t be allowed to sit in water for long periods of time, because the roots can drown and rot, killing the plant.
Soil for Sage and planting
Sage doesn’t require rich soil. In fact, if the soil is too rich, the plant may become leggy and weak, with more stems than leaves. Some sources (including Bonnie’s Plants) recommend not using garden dirt for growing potted herbs, however, I have never had problems with growing herbs in garden soil as long as it isn’t too rich. Perhaps this is because I tend to put a lot of finished compost in my garden, I don’t know. Potting soil can be used, but it shouldn’t be rich, either.
Start by putting about an inch of small gravel or stones in the bottom of the pot to facilitate drainage. The rocks should be just a little larger than the drainage holes.
If you are starting with a seedling in a two by two-inch pot (recommended), put about two inches of soil on top of the gravel in the bottom of the pot, pressed down gently. Remove the seedling from the starter pot and place the root ball on the soil in the pot, then fill in the pot with soil, all the way around the plant. The dirt should be up to the level of the plant that it was in the starter pot. The soil should also be pressed down as you go.
After the sage is planted, water the soil well, allowing the excess water to drain out.
Sunshine and Sage
Sage is a sun-loving plant. It will tolerate some shade, but for best results, place the pot in front of a window that gets lots of sunshine. Alternately, it can be grown under a grow light. In the summer, the pot can be taken outside so the sage can get fresh air and lots of sunshine. It can be a decorative plant when it is placed on a patio rail or in a hanging pot.
Too much water is deadly to sage, as already suggested. In a pot, the balance is a little harder to find, however, the best idea is to water the plant well and to let the excess water drain out. Don’t water it again until the soil is fairly dry or the plant is asking for water. Sage is a plant that droops when it wants and needs water. Care must be taken, though, because it can also droop if the air temperature gets high enough that the roots can’t absorb water as fast as the plant is transpiring. This doesn’t mean that it necessarily needs water, so test the dirt with a fingertip to make sure that it is indeed dry. Do remember, however, that soil in a pot usually dries out much faster than soil in the garden.
Sage can become very dense with leaves. It is advisable to trim out leaves and/or stems to allow for airflow. If you don’t and live in an area that has high humidity, mildew can become a major problem and can kill the plant. In fact, mildew is one of the very few problems sage has.
Stems that are trimmed can be put in glasses of water to root for more sage plants if they aren’t chopped up and used for dinner or medicinal purposes. The excess stems and leaves can also be air dried easily.
Problems in Growing
The three biggest problems that sage has and the biggest causes of crop failure is over-watering, over-fertilizing, and mildew. There are few pests or diseases that affect this hardy plant.
Sage is a wonderful plant to grow in pots and it isn’t hard to do. There aren’t many herbs that are easier to grow, either, except for perhaps oregano. Having some in a pot makes it easy to use it for seasoning pork, chicken, turkey, sausage, vegetables, venison, and elk. Sausage made with fresh sage is far better tasting than sausage that’s made with dried sage, too. This is also a good smelling aromatic herb that gives a good scent as it grows.
Very nice, informative post.
Thank you very much!
So, my bottom leaves that are yellowing could be too much water? I have tried to let it dry out completely between watering. It does have thick new shoots everywhere though, is this normal to have yellows at the bottom?
The best way to put it is probably that it isn’t abnormal for the bottom leaves to turn yellow. Those leaves can be removed and dried for later consumption since they still taste unmistakably like sage.
There would be a concern if a LOT of the bottom leaves turned yellow all at once, though. That could be a sign of stress. It could be caused by a number of things; lack of nutrients, too much water, not enough light, and so forth. I’d suspect a lack of light, this time of year before I’d suspect too much water. If you aren’t keeping the soil moist and are letting it dry out a bit, too much water is probably not an issue.
Here is something you could try. The next time you water, water with a cup of coffee (of course room temperature) mixed with four cups of water. Use the amount of this that you’d normally use of regular water and after watering, put the sage plant where it will get more light.
Again, if there are only a few yellowing leaves, I wouldn’t worry about it, but the coffee ‘fertilizer’ and increased light shouldn’t hurt the plant, either. It can be beneficial.
I looked yesterday and the yellow is climbing up, it did happen fast, I moved it into full strong sun about a week ago. I will try the coffee after it dries out from the storms. Thank you, I would hate to lose it. Poor thing, im killing it. lol
You mentioned storms and that reminded me of another possible cause of yellowing leaves; things like mildew, fungus, viruses, and so forth. That would be consistent with storms, though these usually have a characteristic look, rather than the whole leaf turning yellow. If that is what it is, the sage could recover once weather conditions return to normal.
Some diseases you can’t do much about. Other times, plants can recover when left alone. Still other times, they can benefit from being carefully replanted. Some people would simply take stem cuttings to root and wait to see what the plant does from this point. At any rate, if the storms were the ultimate cause, “you” aren’t killing it. You have no control over the weather.
Good point, I will definitely take a cutting if it starts going downhill. I did learn how to do that thanks to your post on DIY root stuff!
I only have sun in my apartment in the morning. Will sage grow with only 3 hours of sunlight? Or maybe organo is a better choice?
Either oregano or sage should grow well. If you have limited light, just use a full spectrum ‘grow light’. You could probably even get away with using just an incandescent light or a neon light. Just have the light far enough from the plant that the heat from the light doesn’t burn the leaves. Still, both should grow in an apartment that doesn’t get much sunshine, with just a little help.
Thanks, When is a good time to plant?
If you are going to grow it inside, it can be planted anytime. However, it would probably grow best if you waited until between March and May (in the northern hemisphere).
I clipped your article into Evernote. We don’t have a lot of space or sunlight but we seem to have luck with herbs. We haven’t tried sage yet.
Sage is so hardy that it is a particularly good one to grow under limited conditions. It produces better if it has lots of room, but it still produces well even as a potted plant. One of the cultivars is also quite pretty. Instead of solid grayish-green leaves, it has some golden color, along with the green. It is called variegated sage, for that reason. In uses and flavor, it is the same as regular garden sage.