Sage will grow to be between 2-3 feet tall, so be sure to either keep it pruned back or allow it a place with enough space for room to grow.
Soil – Use a fast-draining potting mix, such as a cactus mix. Or, use 2 parts all-purpose potting mix with 1 part sharp sand or perlite. Be sure to work in a teaspoon of bonemeal twice during the summer.
Container – Sage is another herb that can benefit from being grown in a clay pot. Since it does not like having it’s roots too wet, the porosity of the clay will help to maintain a proper balance for the plant’s root system.
Light Requirements – Sage needs six to eight hours of full sun daily. If your sunny window does not provide this much daily sun, use fluorescent lighting when growing sage indoors. A double fluorescent tube mounted under a counter top, without cabinets underneath, can provide the perfect spot for sage in containers. For every hour of sunlight required, give growing sage indoors two hours under the light. Place the potted herb at least 5 inches from the light, but no further away than 15 inches. If artificial light alone is used when growing sage in containers, give it 14 to 16 hours daily. – www.gardeningknowhow.com Be sure to turn the plant regularly. Sun loving Sage craves the light and will grow toward it constantly. It is happy to be placed in direct sunlight.
Starting by Nursery Seedling –Sage is rather difficult, though rewarding, to grow from seed. In fact, grown from seed Sage can take up to a year or more to harvest. That said, the best thing is to go to a reliable nursery and get a small plant. Once you get it home, fill a clay pot with the above mentioned planting medium. Loosen the edges around the plant, being sure to handle the root system delicately. Take the dry root plant and place it in it’s new container. Water lightly, but thoroughly.
Watering – Unlike many plants which like to be kept moist in their pots, resist the temptation to water. Sage is a native to the Mediterranean and prefers dry sunny conditions. Sage is another plant that benefits from ‘wicking’. Place the pot on a bed of stones, add water and Sage can ‘help itself’ to a drink.
Varieties – If you have the space, don’t confine yourself to growing Common Sage alone. Sage comes in many varieties.
Berggarten Sage produces large, round gray-green leaves that are more flavorful than common sage. It grows 2 feet tall and wide.
Purple Sage offers aromatic, purple-toned leaves. Plants reach 18 inches tall.
Pineapple Sage is named for the pineapple scent of its foliage. Pineapple Sage will grow into a V-shaped plant 3½ feet tall and just as wide by the time it blooms.
Sage is an unusual herb, in that much of the folklore relates to a specific variety. In general however, "sage" means a wise man, and this term comes from the belief that sage was thought to impart wisdom and improve one’s memory.
The English herbalist, Gerard wrote that, "Sage is singularly good for the head and brain, it quickeneth the senses and memory, strengtheneth the sinews, restoreth health to those that have the palsy, and taketh away shakey trembling of the members." .
Gardening folklore tells us that the wife will rule the household when Sage grows well in the garden. It also tells us sage will grow well or fail depending on whether the household’s business prospers or fails. Put the two folklores together and make of it what you may! – www.bhg.com/gardening/plant-dictionary/herb/sage
Sage is said to symbolize domestic virtue, wisdom, skill, esteem, long life, good health, mitigates grief, and increases psychic powers.
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