Cosmos always look as fresh as a daisy. I love them in all colors. The single petal varieties seem to be impervious to heat. Society Garlic (Tulbaghia violate) Like ordinary garlic this plant belongs to the lily (Alliaceae) family. Experts day it should be considered a mere "cousin" of true garlic and that this plant is more closely related to the narcissus flower. Society garlic does have a distinctive, pronounced garlicky smell.
Despite it’s strong aroma, society garlic is an attractive ornamental plant for the garden. I use several plants to create a ruffled bordered, away from the path, so their smell stays a secrete. In the dog days of August, the leaves look refreshing.
Hardy geraniums can look ratty after they bloom in spring. Cut them way back, and they quickly re-bloom and grow new perky leaves. Especially, if you add mulch, organic fertilizer and give them a deep drink. Lemon Verbena (Aloysia triphylla) is a hot weather lover. In fact, the leaves don’t sprout until the days and nights warm. Even during the hottest days, the leaves never wilt, and the frilly blooms look fresh.
Many herbs come on strong even during heat waves. One of my favorites is Dittany of Crete (Dictamus origanoides). It blooms all through the hottest weather, and it has dramatic unusual flowers.
‘Goshiki’ or False Holly (Osmanthus heterophyllus) is my new favorite hedge option. The varietal name ‘Goshiki’ translates from Japanese as "five colors", and this plant is colorful. The new leaves emerge cream or red and then turn multiple shades of green. The leaves appear splashed with spots of creamy white, yellow-green and gray-green. My plant is still in a small pot. They say it will have fragrant tiny white flowers in the fall. It likes moist soil and afternoon shade, and I am amazed that my false holly has done well in a small pot in the heat. I try to water it daily...but despite my neglect it keeps getting new leaves!
During heat waves, I appreciate my tough volunteers. Common lobelia and sweet alyssum seem to pop up in sweet spots regardless of the heat. In fact, I just discovered these wee treasures blooming by my brick path where they thrive even with reflected heat.