Themeda Triandra
Known as "Kangaroo Grass" in Australia and "Rooigras" in South Africa, this iconic perennial is a staple of the wild savanna and open woodlands. Itβs more than just a background plant; itβs a living seasonal calendar, shifting its wardrobe from lush emerald greens to a deep, burnt orange as the weather cools. For thousands of years, it has been a vital resource, with its seeds even being ground into flour by Indigenous cultures.
The seeds of Kangaroo Grass are "self-planting" engineers! The long, hair-like tails (awns) are hygroscopic, meaning they twist and untwist in response to humidity changes. This mechanical movement literally screws the seed into the soil, ensuring it reaches the perfect depth to germinate.
To grow Themeda triandra, also known as kangaroo grass, you can follow these steps:


To fertilize this plant, you should apply a balanced fertilizer with an NPK ratio of 10-10-10. Apply the fertilizer once a month during the growing season, typically from late spring to early fall. Be sure to follow the instructions on the fertilizer package for the specific application rate and method. Avoid over-fertilizing as this can cause damage to the plant.
Themeda Triandra is a type of plant that prefers a well-draining soil that is rich in nutrients. It does well in soil that has a pH level of 6.5 to 7.5, with a loamy texture. The soil for this plant should be well-aerated, with good water retention, and a moderate level of organic matter. It is recommended to mix the soil with coarse sand, perlite, or vermiculite to improve drainage. The plant prefers soils that are not compacted and do not have a heavy clay content. Its root system is relatively shallow, which is why it requires good soil aeration. In general, the soil for Themeda Triandra should be fertile, moist, and well-draining to ensure healthy growth.
One way to propagate this plant is through seed collection. Wait until the seed heads turn brown and are dry, then collect the seeds. Store them in a dry and cool place until ready to plant. To plant, clear the area where you want to grow the plant, loosen the soil, and scatter the seeds. Cover with a thin layer of soil, tamp down gently, and water well. Keep the area moist until the seeds germinate, which should happen within 2-3 weeks.
Another way to propagate this plant is through root division. When the plant is mature, dig up the clump and separate the roots into smaller sections with sharp, clean tools. Each section should have some roots and leaves. Replant the divisions into prepared soil, water well, and keep the area moist until the divisions establish themselves.
Another method is through stem cuttings. Take a stem cutting from a healthy and mature plant, cut off the lower leaves to create a stem about 5-10cm long. Dip the cut end in rooting hormone and plant it in a pot filled with a well-draining soil mix. Water well and keep the soil moist until roots have formed. Transplant the new plant to the desired location once it has established a good root system.
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