Aloe aculeata aka Ngopanie

Aloe aculeata is a succulent perennial called red-hot poker aloe. It belongs to the Asphodelaceae family. Its native range runs from southern Zimbabwe to Limpopo. Records also place it in Mpumalanga in South Africa. It grows among rocks in grassland and open bushveld. Kew places it in desert or dry shrubland habitats. The name aculeata refers to its prickly leaves.

Most plants form one rosette without a visible stem. The rosette reaches about 2 feet (0.6 metres) tall. Its width starts around 1 foot (0.3 metres). Larger plants can reach 3.3 feet (1 metre) in both dimensions. Thick, broad leaves curve upward to form a bowl. Older rosettes may lean and lose this shape. Leaves range from dull green to blue-green. Their bases can measure about 0.4 feet (0.12 metres) across. Reddish-brown teeth line the edges and occur beneath the leaves. White bumps beneath the spines give the leaves a spotted look. Spine numbers vary, and some older plants lose them.

Tubular flowers appear in midwinter in the Northern Hemisphere. Their colours include red, orange, yellow, and greenish yellow. Some plants bear flowers with two colours. Each flower measures about 0.13 feet (0.04 metres) long. Young plants produce a single flower stalk. This can reach 3.3 feet (1 metre) tall. Older plants may produce three or four branches. Each raceme narrows toward its tip. The bright blooms and spiny rosettes suit pots and raised beds. Sheltered terraces also offer a place to grow it.

Use a sandy, gritty cactus mix that drains well. A shallow pot suits its fibrous roots. Give it some sun, with shade from hot afternoon rays. Avoid sites that trap reflected heat. Too little light can spoil its growth and shape. Water through summer, but keep it dry during winter rest. Keep it dry when nights stay below 10°C. Good airflow helps limit problems in cool, damp weather. A bright windowsill can suit plants kept indoors. A winter minimum of 5°C offers safer growing conditions. Dry plants may survive brief cold near −2°C. Avoid frost rather than relying on that tolerance.

Too much water and poor airflow cause many growing problems. Fungal disease can also affect soft growth from excess feeding. Scale insects and aphids may attack plants. Seedlings are prone to damping off. Plants seldom make offsets, so growers raise them from seed. Sow fresh seed in warm spring or summer conditions. Remove spent flower stalks as part of routine care.