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Ceanothus thyrsiflorus can grow more than 6 metres (20 feet) tall and broad in its native chaparral habitat, with glossy green leaves. The clusters of tiny flowers, borne in spring, vary from different shades of blue to close to white. [2] The evergreen leaves are shiny and about 4 centimetres (1 + 1 ⁄ 2 inches) long. [3]
Place the bulbs in the soil with the pointed sides up, making sure to plant each bulb close together. Cover small bulbs with a 1/2-inch of soil and larger bulbs up to their tips. Water the bulbs well.
Growing to 90 cm (35 in) tall by 60 cm (24 in) broad, it is a mound-forming herbaceous perennial, with deeply toothed leaves and erect spikes of bright blue flowers throughout summer. [ 3 ] The specific epithet austriaca refers to Austria within its native range.
Flower. Growing to 10–20 cm (4–8 in) tall by 5 cm (2 in) wide, it is a bulbous perennial, with two to four strap-shaped leaves appearing in early spring, at the same time as the nodding, blue, bell-shaped flowers. [5] The flowers have six tepals and six stamens, and are arranged singly or in racemes of two or three. Petals may be reflexed ...
Allium caeruleum (blue globe onion, blue ornamental onion, blue-of-the-heavens, blue-flowered garlic; syn. Allium azureum Ledeb.) is an ornamental bulbous plant of the onion genus, native to Central Asia (Kazakhstan, Kyrgyzstan, Siberia, Tajikistan, Uzbekistan, and Xinjiang). [3] [4] [5] In these regions, it is found on dry slopes, plains, and ...
Trichostema lanatum is many-branched and grows to 1.5 m (5 ft) tall, with narrow, pointed green leaves. The smooth-petaled blue flowers are borne in dense clusters, with the stem and calyces covered in woolly hairs of blue, pink, or white. Flowers are present from March to June. [2]
Most common ageratums, "Hawaii" for example, are a short 6–8 inches (15–20 cm) when full grown. Tall ageratum are also available in seed catalogues. They are about 18 inches (46 cm) in height with blue flowers. [4] [failed verification] There is also a medium-height snowcapped variety, white top on blue flowers. The blues are most popular ...
An inflorescence of 5–12 (exceptionally 3–32) flowers is borne on a stem up to 500 mm (20 in) tall, which droops towards the tip; [2] the flowers are arranged in a 1-sided nodding raceme. [8] Each flower is 14–20 mm (0.55–0.79 in) long, with two bracts at the base, and the six tepals are strongly recurved at their tips. [ 8 ]