Blue Sage
Blue Sage (Salvia farinacea) is an ornamental plant from the mint family. It is easily identified by its long, slender spears of vivid blue flowers with a deep purple-blue color, making it a great addition to your flower garden. The foliage is olive blue-green in color and is heavily wrinkled. Flowers bloom between late spring to early summer and may last from around June to August. In the frost-free parts of the United States, it will bloom throughout the fall. Since it is a perennial, its plants are mostly evergreen and can grow up to over 3 feet tall.
Blue Sage should be watered about once a week when the top of the soil is dry. However, be careful not to overwater as this can lead to root rot. During the summer, it is important to keep the soil moist without letting it become soggy. Allow the soil to dry out completely between waterings, as too much moisture can be harmful to the plant. In the winter, water less often than in the summer.
The Blue Sage plant prefers full sun exposure, ideally 4-6 hours of direct sunlight each day. It also grows well in partial shade of up to 4 hours of direct sunlight per day. The plant can tolerate any light conditions within these ranges, as long as it is kept in a bright spot and is not completely in the shade. It prefers both morning and afternoon sun, so if possible, rotate so that it will get the most exposure throughout the day.
Blue Sage plant does best in temperatures between 60-80°F (15-27°C). It can handle temperatures as low as 40°F (4°C), but should not be exposed to temperatures lower than that. In the summer, it may appreciate being placed outside if the temperatures remain in its preferred range.
Blue Sage does best in a moderate to average level of humidity. It thrives in humid environments, but can adapt to drier conditions. If the air is particularly dry, it is a good idea to mist the plant regularly, especially during the winter months. Additionally, you can place it near a humidifier or on a pebble tray to increase the humidity.
Blue Sage prefers a well-drained, light, and loamy soil. The ideal soil should be neutral to slightly acidic with a pH range of 6.5 - 7.5. Peat-based material is a great option, since it is light and free-draining. If you have hard water, it might be a good idea to mix in some sand and/or perlite to improve the drainage. Additionally, you can add some organic compost to help retain moisture.
Blue Sage does not need to be fertilized very often. A balanced fertilizer, such as 10-10-10 or 20-20-20, can be applied at the beginning of the growing season and then a few times at the end of summer and early fall. Be sure to follow the directions on the label as overfertilization can burn the plants. Overfertilizing can also encourage the growth of weeds, so be sure to pull any weeds that form in the area.
Blue Sage plants are prone to certain pests, such as aphids, spider mites, and whiteflies. If you notice any of these pests on your plant, it is important to act quickly to prevent further damage. To get rid of them, you can spray the plant with a mild soap solution or Neem oil. If chemical control is necessary, you can use other insecticides specifically formulated to kill these pests. However, be sure to read the product label carefully and follow the instructions regarding safety and usage.
Blue Sage should not need to be repotted too often, and you only have to worry about it when you notice that the plant has become root-bound in its pot. Generally speaking, repotting Blue Sage should be done about every two years in the spring or early summer. Be sure to use a well-draining potting mix and pick a pot a size or two bigger than the current one to accommodate new growth.
Pruning is not strictly necessary for Blue Sage, but if you want to keep your plant looking tidy then it is a good idea. Deadheading regularly can help to prolong the flowering season by encouraging new growth. Remove faded blooms with a pair of sharp, clean clippers to encourage re-blooming and prevent the plant from setting seed and becoming leggy. Additionally, you can trim off any dead or diseased leaves and stems to keep the plant healthy.
Mulch can be an effective way of keeping the soil moist and preventing weeds from growing. A layer of mulch around your Blue Sage can help to conserve moisture and reduce the amount of watering needed. Good mulch options include organic material such as straw, pine bark, wood chips, and grass clippings.
Blue Sage can be easily propagated from cuttings in the spring or summer. Take a 4 to 6 inch cutting and dip it in rooting hormone. Place the cutting in a moist potting soil and keep it in a bright, warm spot. You should see roots forming within 2 weeks. After the cuttings are rooted, you can transplant them into individual pots and care for them as you would mature plants.
Younger Blue Sage plants may need some support, such as a stake or trellis, to help them stand upright. Be sure to check on them often and adjust the support if necessary. Tying the stems to the support gently with string or soft cloth is a great way to provide support without causing damage to the stems.
Although Blue Sage does not require a rest period, it is best to reduce watering in the winter months and allow the plant to go dormant. If you live in an area with cold, winter temperatures, it is a good idea to move the plant indoors or to a greenhouse to protect it from frost and freezing temperatures.
Blue Sage is not toxic to pets or animals, so it is safe to keep around them. However, as with all plants, it is still best to keep them out of pets’ reach so that they do not eat the leaves.
Blue Echeveria
Echeveria glauca, commonly known as Blue Echeveria, is a succulent species in the Crassulaceae family native to Mexico. It has thick blue-green leaves...
Blue Star Fern
The Blue Star Fern (Phlebodium aureum) is an evergreen plant native to tropical rainforest regions found in Southeast Asia. It is also known as the “r...
Blue Ginger
Blue Ginger, known botanically as Dichorisandra thyrsiflora, is an upright evergreen perennial in the Commelinaceae family native to tropical environm...
Blue Pea Vine
The Blue Pea Vine, also known as the Butterfly Pea or Clitoria ternatea, is an exceptionally beautiful and easy-to-grow flowering vine that is grown f...
Blue Bean
Blue Bean, or Thunbergia Grandiflora, is a stunningly beautiful evergreen vine that originates from tropical East Africa. It is a member of the Acanth...
Blue Angel Hosta
Hosta 'Blue Angel' is a classic, robust garden staple. Its huge, heart-shaped, blue-green leaves spread in a star-like pattern from the center of the...