Archives: Plants

Silene dioica, commonly called Red campion, is a hardy, short-lived perennial or biennial wildflower native to much of Europe and parts of western Asia. It forms loose clumps 30–90 cm tall with softly hairy, branching stems and opposite, ovate, mid‑green leaves. From late spring into early autumn, it bears abundant magenta to rosy‑pink flowers with five deeply notched petals and a conspicuous, tubular, hairy calyx. As its species name suggests, it is dioecious—male and female flowers are borne on separate plants—so seed set requires both sexes. The slightly sticky stem nodes can trap small insects, inspiring the “catchfly” name, but the plant is not carnivorous. Red campion thrives in moist, humus‑rich, well‑drained soils, preferring partial shade typical of woodland edges and hedgerows. It attracts bees, hoverflies, butterflies, and moths, supporting a wide range of pollinators. It self‑seeds readily (and may hybridize with White campion, Silene latifolia), making it excellent for naturalistic plantings, cottage gardens, and wildlife meadows with minimal maintenance.

Verbena × hybrida, commonly called garden verbena, is a tender perennial often grown as a warm-season annual for its prolific, long-lasting bloom. Bred from South American Verbena/Glandularia species, modern cultivars form low mounds or trailing mats that cascade elegantly from containers and hanging baskets. Clusters of small, five-petaled flowers appear in vivid shades of red, pink, purple, lavender, white, and bicolors, attracting butterflies and other pollinators. Plants prefer full sun and excellent drainage; saturated soils quickly lead to root problems. Many cultivars are bred for improved heat tolerance and mildew resistance, yet good air circulation remains important to prevent powdery mildew. Regular deadheading or shearing encourages continuous flowering from late spring through frost. In garden beds, verbena is moderately drought-tolerant once established, though container-grown plants need more frequent watering. It pairs well with other sun-loving annuals such as calibrachoa, petunia, and lantana, providing color-rich groundcover or trailing accents.

Stellaria media, commonly called common chickweed, is a cool-season annual in the Caryophyllaceae family that forms soft, low, mat-like patches in moist, fertile soils. Its slender, sprawling stems root at the nodes and display a distinctive single line of fine hairs along one side—a key identification feature. Opposite, oval leaves are tender and bright green, while tiny white, star-like flowers have five deeply cleft petals that appear as ten. A prolific self-seeder, it germinates in cool weather and can persist through mild winters, then declines in heat. Though often considered a garden weed, S. media is widely edible with a mild, spinach-like flavor and has a history of culinary and herbal use. It favors partial shade, consistent moisture, and nitrogen-rich, well-drained loam. In containers or edible beds, it can be managed as a cut-and-come-again green. Its rapid growth and shallow roots make it easy to pull where unwanted, yet equally easy to cultivate intentionally for salads, pest-attracting biodiversity, and living groundcover.

Citrullus lanatus is a warm-season, sprawling annual vine in the cucurbit family grown primarily for its large, juicy fruits. Originating in Africa, it produces long, ridged vines with deeply lobed leaves, tendrils, and separate male and female flowers that rely on pollinators, especially bees. Fruits range from small icebox types to large picnic melons, with rinds that may be striped or solid and flesh colors spanning red, pink, yellow, and orange. Watermelon thrives in hot, sunny conditions, requiring well-drained, fertile soil and ample space for vines to ramble. It is a heavy feeder and a consistent drinker during vegetative growth and fruit set, yet benefits from reduced moisture as fruits finish ripening to concentrate sugars. Cultivation challenges include damping-off in cool soils, blossom-end issues from uneven moisture, and pests such as cucumber beetles, aphids, and squash bugs. Harvest timing is gauged by a dried tendril near the fruit, a creamy ground spot, and a resonant thump.

Lupinus polyphyllus, commonly known as bigleaf lupine, is a herbaceous, short-lived perennial in the legume family. It forms basal clumps of palmately divided leaves with 9–17 silky leaflets that shed water. In late spring to early summer it sends up stately, densely flowered racemes 60–120 cm tall in shades of blue, purple, pink, white, and bicolors, often visited by bees and hummingbirds. A deep, brittle taproot anchors the plant and hosts nitrogen-fixing Rhizobium, allowing it to thrive in relatively poor, sandy or loamy soils. The plant is hardy in cool, temperate climates and prefers moist but well-drained sites; prolonged heat and humidity reduce vigor. Seed pods follow bloom and can eject seeds, leading to self-sowing; in some regions it has escaped cultivation and become invasive. Plants resent root disturbance and may persist only 3–5 years, but can be renewed from seed or basal cuttings. Its bold foliage and vertical bloom spikes make it a classic feature of cottage gardens, meadow plantings, and pollinator borders.

Allium schoenoprasum, commonly known as chives, is a hardy, clump-forming perennial herb in the onion family (Amaryllidaceae). It grows from small bulbs, producing hollow, tubular leaves with a mild onion flavor prized in culinary use. Mature clumps reach 20–40 cm tall and bear spherical umbels of starry, purple-pink florets in late spring to early summer, which attract bees and other pollinators. The plant spreads slowly by bulb division and self-seeding, remaining well behaved in gardens. Foliage can be harvested repeatedly; regular cutting encourages tender regrowth. Chives prefer cool to temperate conditions, full sun, and moist, well-drained, fertile soil. They are cold-hardy, often dying back in winter and resprouting in spring. Each flower head arises on a leafless scape, and the glossy black seeds mature in papery capsules. In containers, chives adapt well to windowsills and hydroponics, providing a reliable, compact, and ornamental edible. Beyond the kitchen, chives provide ornamental value with their blooms, serve as a companion plant that may help deter some pests, and support beneficial insects.

Lagunaria patersonia is an evergreen tree in the mallow family (Malvaceae), valued for its tolerance of coastal conditions and showy, hibiscus-like blooms. Native to Norfolk Island and Lord Howe Island, it typically forms a dense, pyramidal crown and reaches 6–15 m in height (smaller in containers). Leathery, elliptic leaves provide a neat, glossy backdrop to five-petaled flowers that open pale to rose-pink with a deeper eye, mainly in late spring to autumn in mild climates. Woody, pear-shaped capsules follow; inside are silky hairs that readily detach and cause intense skin, eye, and respiratory irritation—hence the common name “cow itch.” The species is drought- and salt-tolerant once established, suited to windbreaks, coastal streetscapes, and low-maintenance gardens in Mediterranean and subtropical regions. It prefers well-drained soils and full sun, responding well to light post-flowering pruning to maintain a tidy outline. Care is straightforward where winters are frost-free or only lightly frosty, but caution is required when handling fruits and spent pods to avoid exposure to the irritating fibers.

Matthiola incana, commonly called stock, is a cool-season ornamental from the Mediterranean Basin prized for its spicy, clove-like fragrance and showy spring flowers. A short-lived perennial often grown as an annual or biennial, it forms upright, leafy stems bearing dense terminal racemes of four-petaled blooms in white, pink, lavender, purple, and rose; many cultivars feature fully double, ruffled flowers valued in cutting gardens. The foliage is gray-green to silvery, softly downy (hoary), and often oblong to lanceolate. Plants typically reach 30–80 cm tall, sometimes taller in rich soil. Stock thrives in cool weather, producing its best color and scent with bright days and cool nights. While tolerant of coastal conditions and mild frost, it dislikes heat and prolonged humidity. It prefers well-drained, moderately fertile, slightly alkaline soils and steady moisture without waterlogging. Deadheading can extend bloom, and staking may be needed for taller selections. Susceptible to brassica diseases such as clubroot and downy mildew, stock benefits from good air circulation, crop rotation, and careful watering at the base.

Chaenostoma cordatum (syn. Sutera cordata), widely sold as ornamental bacopa, is a trailing, mat-forming perennial prized for clouds of small, five-petaled flowers that smother the plant from spring through cool weather. Native to South Africa’s Cape regions, it bears rounded, serrated leaves on slender stems that spill 30–60 cm, making it ideal for hanging baskets, window boxes, and as a flowering groundcover or edging. Most cultivars bloom white, but pink, lavender, and bi-color selections exist. Flowering is best in cool, bright conditions and may pause during extreme heat. Plants prefer consistently moist, well-drained, organically enriched soils and regular light feeding. Self-cleaning blooms reduce deadheading needs, though periodic shearing renews vigor. Often grown as a warm-season annual outside frost-free zones, it can be overwintered indoors with bright light and reduced watering. Not to be confused with the aquatic herb Bacopa monnieri (water hyssop).

Cinnamomum camphora is a long-lived, evergreen laurel native to East Asia, valued for its aromatic foliage and camphor-rich wood. It forms a broad, dense crown and can reach 20–30 m tall (occasionally more) with a wide-spreading root system. Leaves are glossy, alternate, ovate-elliptic with three prominent basal veins and translucent oil glands; when crushed, they release a strong camphor scent. New growth often flushes bronze to reddish before maturing green. Small yellowish-green flowers appear in spring in airy panicles, followed by pea-sized black drupes eaten by birds. Bark is gray-brown and becomes fissured with age. The tree thrives in warm, humid subtropical climates and is relatively drought-tolerant once established, though it dislikes waterlogged soils. Historically, it was a major commercial source of natural camphor and essential oil. While an attractive shade and street tree, it can be invasive in some regions, self-seeding prolifically and competing with native vegetation. In containers or as bonsai, it needs regular pruning and careful root management.