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Sempervivum (/ s ɛ m p ə ˈ v aɪ v əm / [1] [2]) is a genus of about 40 species of flowering plants in the family Crassulaceae, commonly known as houseleeks.Other common names include liveforever (the source of the taxonomical designation Sempervivum, literally "always/forever alive") and hen and chicks, a name shared with plants of other genera as well.
Passiflora caerulea - Common passionflower or Hardy Passion Flower is cold hardy and drought tolerant variety of passionflower grown from zones 6. [5] [6] [7] Passiflora foetida - is native to the desert southwest US and is cold hardy and drought tolerant variety of passionflower grown from zones 8. [1] [2]
The great thing about perennial herbs, according to Luay Ghafari, creator and recipe developer at Urban Farm and Kitchen, is that they can often withstand a little frost and even snow. "This means ...
Cyclamen species range from frost-hardy to frost-tender. The most frost-hardy species, such as C. purpurascens, C. hederifolium, C. coum and C. cilicium, tolerate temperatures down to −20 °C (−4 °F). C. hederifolium has even survived prolonged freezing and temperatures down to −30 °C (−22 °F).
For edible herbs that will grow back every year, try these great perennial herbs in your garden. Chives, sage, and more will add so much flavor to your dishes. 20 Perennial Herbs You Can Enjoy ...
Here are the best fall flowers and perennials to plant for a long season of blooms. ... While hardy in warm regions, it cannot survive the winter below Zone 8, so plan to dig up the tubers about ...
The stems are square, like most other plants in the mint family. The leaves are borne in opposite pairs on the stems, and are usually ovate or heart-shaped and emit a lemony scent when bruised. Axillary spikes of white or yellowish flowers appear in the summer.
Macrosiphum hellebori, commonly known as 'Hellebore aphid' or 'greenfly', is a sap-feeding aphid that infests the flowers and foliage of hellebore plants. The whitish-green aphids are about 2–4 millimetres ( 3 ⁄ 32 – 5 ⁄ 32 inch) long and form dense colonies on hellebores, coating them with a honeydew that can lead to the growth of ...