Rubus hawaiensis, also called the ʻĀkala, is one of two species (with R. macraei) commonly known as Hawaiian raspberry, endemic to Hawaii. It is found on the islands of Kauaʻi, Molokaʻi, Maui, O'ahu, and Hawaiʻi in mesic to wet forest at elevations of 600–3,070 m (1,970–10,070 ft). In most areas it is not very common, but in some places (such as the upper Koʻolau Gap in Haleakalā and Laupāhoehoe Natural Area Reserve) it can be a dominant member of the understory vegetation. Although superficially similar to the other Hawaiian species, Rubus macraei, the two are believed to be derived from separate dispersals to Hawaii.
How to keep Rubus Hawaiensis.
Water
Hawai'i blackberry is easy to maintain once it is established, requiring about 1 inch (2.5 cm) of water each week. For those growing Hawai'i blackberry in containers, adjust the watering schedule based on the soil's condition. Make sure to water deeply when the top layer of soil feels dry, and always maintain well-drained soil.
Pruning
Hawai'i blackberries have thorny canes and delicious berries. To improve air circulation and increase fruit production, it's important to prune them annually in early spring. This involves removing dead canes and thinning out any overcrowded areas. These actions promote healthy growth, prevent disease, and ultimately lead to better berry yields.
Botanical profile.
Other names.
Reader questions.
What are the sun requirements for Hawai'i blackberry (Rubus hawaiensis)?
The Hawai'i blackberry, or Rubus hawaiensis, has specific sunlight requirements to flourish. It requires 'Full sun' meaning it should receive above 6 hours of sunlight daily. Alternatively, it can also thrive in 'Partial sun' conditions, which entail about 3-6 hours of sunlight each day. It's important to observe the sunlight's movement through your garden, selecting locations that offer an ideal mix of light and shade. This ensures the plants remain happy and healthy.
What is Hawai'i blackberry?
Hawai'i blackberry, known scientifically as Rubus hawaiensis, refers to a specific species of blackberry that is native to Hawai'i. Unlike the common blackberry varieties familiar to many, the Hawai'i blackberry has its own unique characteristics and ecological role within its native environment.
