This variety has light green leaves with a pretty golden border. If they start to yellow, they have too much sunlight. In the last week or two, the leaves, especially the larger ones have started curling. I think the plant had plenty of water. CAUSE: Whiteflies are small, moth-like insects that cluster on the undersides of leaves. Causes Both mealybugs and excessive light cause houseplant leaves to curl. The leaves are wilting and curling and turning crispy brown. Some curling is OK. In the early stages, it looks like dusty white spots on the upper surface of the leaves. SYMPTOMS: Stunted or twisted leaves, white spots or black moldy areas on the top of foliage. Tri-color sage is a smaller variety that looks as good in an ornamental garden as your herb garden. Name: Cheyenne E-mail: email@example.com Date posted: November 09, 2011 - 08:33 pm Message: Due to the lack of rain where im from, our natural grown sage in the local fields have died. ... 14 Comments: Unknown said... As it got closer to summer, I moved my sage out of direct sunlight to a part of my porch that only gets partial sun. r/houseplants: A community focused on the discussion, care, and well-being of houseplants! The plants have been thriving since the move. Sage thrives in fairly rich soil that is well-drained. (But check underneath before you sigh with relief - there just might be bugs.) They're pretty resilient. Golden Sage. Wilting means not enough water (the stems sag, the leaves look lifeless). As it develops, entire leaves will be coated with the fungus and it leads to leaf drop and deformed new growth. Not curling up, but curling in a downward spiral with the bottom on the inside. It is a fungal disease. This type lends itself nicely to container growing. The nymphs are translucent and can appear to be the same color as the leaves. Mealybugs also cause yellow or white spots on the foliage and a sticky substance on the plant or nearby furniture. Both nymphs and adults suck the fluids from new growth, which causes fresh leaves to be stunted or twisted. Sage (Salvia officinalis)âalso known as Common Sage, Culinary Sage and Garden Sageâis a perennial evergreen shrub found widely in the Mediterranean regions of the world.It belongs to the genus Salvia, which consists of over 900 varieties of shrubs, annuals and herbaceous perennials.This plant is used for its medicinal value and essential oil and also as a flavoring and seasoning ingredient. 4. The leaves are green, white and pink or purple with pretty violet flowers. http://hydroselect.com/pc/pest-disease-control/leaf-shines-leaf-washes/ Sometimes on young plants, we see an odd situation to new growers. Sage, Salvia officinalis, is a perennial shrub in the the family Lamiaceae grown for its aromatic leaves which are used as a herb.Sage can be erect or grow along the ground and possesses a dense arrangement of woody stems with broad, elliptical,silvery-green leaves which are â¦ However, curling leaves on a houseplant can indicate a problem that needs extra attention. Like rosemary (Rosmarinus officinalis), also from the Labiatae family, sage prefers a light fertilizer and for the soil pH to be between 6.0 and 7.0.To measure the soilâs pH, you can buy a pH reader from your local garden store. Powdery mildew on garden sage appears as the temperatures increase in late spring. WHITEFLIES. Im looking to grow some of my own, but the kind i need is the kind that grows Straight Up, With no stems on it, just leafs.