Archives: Plants

A hardy herbaceous perennial native to central and eastern North America, Echinacea purpurea (purple coneflower) forms clumps of rough, lanceolate foliage and sturdy, branching stems 60–120 cm tall. From early summer into early fall, it bears abundant daisy-like composite blooms with drooping purple-pink ray florets surrounding a prominent, spiny orange-brown cone (the seed head). Flowers attract bees, butterflies, and other pollinators; spent cones provide winter seed for goldfinches and visual interest. Adaptable to a range of soils so long as drainage is good, it thrives in full sun and tolerates heat and periodic drought once established. Long stems make excellent cut flowers, and the plant’s roots and leaves have a long history in herbal medicine. In gardens, it excels in pollinator borders, prairie and meadow plantings, and low-maintenance xeriscapes, pairing well with grasses and other sun-loving perennials. Generally pest- and disease-resistant, it may experience occasional powdery mildew or aster yellows; good spacing and sanitation help prevent issues.

Sonchus oleraceus, commonly called common sowthistle, is a fast-growing annual (occasionally biennial) in the Asteraceae. Erect, hollow, branching stems 30–150 cm tall exude a milky latex when cut. Basal leaves are deeply lobed with soft, pliable spines; upper leaves are glabrous, bluish-green, and have rounded auricles that clasp the stem. Flat-topped clusters of dandelion-like yellow flower heads (1.5–3 cm) appear from spring to autumn, maturing to ribbed achenes topped with a white pappus for wind dispersal. A pioneer of disturbed ground, it thrives in fertile, moist, well-drained soils and tolerates compaction, variable moisture, and a wide pH range. Young leaves are edible as a slightly bitter pot herb, especially in cool weather before flowering. In cultivation it is short-lived and reseeds freely; in many regions it is both a cosmopolitan agricultural weed and a valued leafy forage or traditional vegetable.

Pachypodium lamerei, commonly called the Madagascar palm, is a succulent shrub or small tree endemic to the dry, spiny thickets of southern Madagascar. Despite its name, it is not a true palm; instead, it forms a thick, spiny, water-storing trunk (caudex) crowned by a rosette of glossy, strap-like leaves. Mature plants can reach 4–6 m outdoors, but typically grow 1–2 m in containers. The trunk is armored with sharp, paired or tripled spines that deter herbivores and reduce transpiration. In ideal conditions and with age, plants produce showy, fragrant white flowers at the branch tips, though flowering is uncommon indoors. It prefers high light, heat, and excellent drainage, growing during warm months and entering a semi-dormant state in cooler seasons. Growth is relatively slow; branching often occurs when the main stem is damaged or after flowering. Its dramatic silhouette, drought tolerance, and architectural presence make it a prized specimen for arid gardens and bright indoor spaces, provided one avoids cold and overwatering.

Prunus serotina, commonly called black cherry, is a large, long-lived deciduous tree native to eastern North America. Mature trees typically reach 50–80 ft (15–24 m), occasionally taller, with a straight trunk and narrow, irregular crown. The bark becomes dark, scaly, and cracked—often compared to burnt potato chips—while young bark is smooth and lenticeled. Leaves are alternate, glossy, and finely serrated, with tiny rusty hairs along the midrib beneath. In mid- to late spring, fragrant white flowers appear in elongated racemes, followed by small green drupes that ripen to purple-black in late summer, relished by birds and wildlife. The ripe fruit is edible for humans, though the seeds and foliage contain cyanogenic compounds. Black cherry’s fine-grained, reddish-brown heartwood is prized for cabinetry and instruments. Ecologically, it is an important pioneer and canopy species in mixed hardwood forests but can be invasive outside its native range. It performs best in deep, well-drained, slightly acidic soils with full sun and shows good drought tolerance once established.

Verbena bonariensis, commonly called tall verbena or purpletop vervain, is an airy, architectural perennial valued for its see-through habit and long season of bloom. Slender, wiry stems rise 3–6 ft (0.9–1.8 m) and carry candelabra-like clusters of small lavender-purple flowers from midsummer to frost. The sparse foliage keeps sightlines open, making it ideal for weaving through borders, prairies, and meadow plantings without overwhelming neighbors. Native to South America, it is short-lived but often persists through prolific self-seeding. It thrives in full sun, well-drained soils, and tolerates heat, drought, and poor fertility once established. The nectar-rich flowers are a magnet for butterflies, bees, and hummingbirds, enhancing biodiversity in wildlife-friendly gardens. While generally well-behaved in many regions, it can self-seed aggressively and is classified as a weed in some warm climates—check local guidance. Its minimal maintenance requirements, pollinator appeal, and ethereal structure make it a favorite for naturalistic and contemporary garden styles.

Zantedeschia aethiopica, commonly known as Calla Lily or Arum Lily, is a graceful perennial plant native to southern Africa. It features large, arrow-shaped, glossy green leaves and is renowned for its striking, trumpet-shaped flowers, which are actually spathes surrounding a yellow finger-like spadix. The spathes are usually white but can also be found in shades of green. This plant typically reaches a height of 0.6 to 1 meter and blooms from spring to early summer. It thrives in wet environments and is often found on the edges of ponds and marshes, where it can be seen emerging directly from shallow waters.

Opuntia microdasys, commonly called the bunny ear cactus, is a clump-forming prickly pear native to arid regions of central and northern Mexico. It grows as segmented, oval pads borne in pairs that resemble rabbit ears. Unlike many cacti, it lacks long spines; instead, each areole carries dense tufts of barbed glochids that detach readily and irritate skin, so handling requires care. Mature plants reach 30–60 cm tall and wide, branching freely over time. In bright, warm conditions, it produces large, satiny yellow flowers in late spring to summer, sometimes followed by small reddish fruits. Pads are deep green and photosynthetic, storing water efficiently for drought tolerance. As a houseplant, it thrives in fast-draining mineral potting mixes, abundant sun, and sparse watering. It is well suited to windowsills, balcony planters, and xeric outdoor beds in frost-free climates. Indoors or out, excellent drainage and a dry, airy root zone are essential to prevent rot.

Solanum tuberosum, commonly known as the potato, is an herbaceous perennial in the nightshade family cultivated worldwide as a cool-season annual crop for its starchy underground tubers. Plants form pinnate leaves on branching stems and bear white to lavender flowers; small green berries may follow but are not edible. The edible portion is a swollen stolon (tuber), which should be kept covered to prevent greening and solanine accumulation. Potatoes prefer loose, well-drained, slightly acidic soils and benefit from hilling to increase yield and prevent exposure of tubers to light. Originating in the Andes of South America, they thrive in cool days and mild nights, struggling in sustained heat or frost. Susceptibility to pests and diseases—particularly late blight and Colorado potato beetle—makes crop rotation, sanitation, and resistant varieties important. While the cooked tubers are a global staple, the foliage, sprouts, and green tubers are toxic if ingested. Container and garden cultivation are both effective with proper soil depth and consistent moisture.

Plectranthus verticillatus, commonly known as Swedish ivy, is a fast-growing, trailing perennial in the mint family (Lamiaceae) prized for its glossy, scalloped, rounded leaves and cascading habit. Stems are square and easily root at nodes, making the plant exceptionally simple to propagate and ideal for hanging baskets or as a softly spilling companion in mixed containers. Leaves are semi-succulent and aromatic when bruised. In favorable light, it produces slender spikes of small, two-lipped, white to pale lavender flowers. Native to southeastern Africa, it thrives in bright, filtered light with regular moisture and excellent drainage. Indoors, it tolerates average home humidity and temperatures, remaining compact with frequent pinching. Outdoors in frost-free climates, it can serve as a quick groundcover in light shade. It is a forgiving houseplant for beginners, bouncing back well from occasional neglect, but it dislikes prolonged waterlogging or intense, direct midday sun, which can scorch foliage and stunt growth.

Alcea rosea, commonly known as hollyhock, is a tall, short-lived perennial or biennial in the mallow family (Malvaceae), celebrated for its stately spires bearing saucer-shaped flowers from early to midsummer. Native to southwestern and central Asia and long naturalized across Europe, it thrives in cottage-style plantings, along fences, and against warm walls. Plants typically reach 5–8 feet tall, with coarse, lobed leaves forming a basal rosette in the first year, followed by flowering stems in the second. Flowers range from single to double forms in shades of pink, red, white, yellow, purple, and near-black, attracting bees, butterflies, and hummingbirds. Although robust, hollyhocks are prone to rust (Puccinia malvacearum), so good spacing and dry foliage help. They self-sow readily, allowing stands to persist despite individual plants being short-lived. Alcea rosea tolerates a range of soils provided drainage is good, performing best in fertile, moderately moist, neutral to slightly alkaline ground under full sun. Staking may be needed in windy sites.