Japanese blood grass Red Baron: green leaf bases and red tips in the light

Your care table

Red starts at the leaf tip

A single leaf explains why this grass is chosen: fresh green below, with red to burgundy tones appearing higher up. Side light makes the transition especially clear. The leaves remain narrow and upright rather than forming a soft arching tuft. The RHS profile lists Red Baron as a synonym of Imperata cylindrica 'Rubra', so these are not two different cultivars. I would place the colourful clump against a calm green backdrop where the leaf tips remain visible without needing a large display of flowers.

A few leaves at first do not mean a missing plant

The young delivered plant may consist of just a few thin leaves. Each selected plant comes in a 9 cm pot, included in the approximate total height of 10–25 cm. A developed clump is considerably larger, around 30–50 cm tall and, depending on garden conditions, sometimes within the shop’s indicative 40–60 cm range. The red foliage changes with development and season. When unpacking, avoid sharply bending the upright leaves and check the small rootball for dryness. A dense, uniformly red mature grass area is neither the delivery size nor a guaranteed immediate effect.

Light needs fresh soil here

A bright sunny to partially shaded spot is suitable if the soil is humus-rich, adequately supplied and remains fresh. Ornamental grass does not automatically mean a dry gravel bed. In a small container or beside hot stone, the rootball can dry quickly. Water must also drain away so winter moisture does not remain around the base. I look for a slightly sheltered spot where colour and root supply work together. Warmth is welcome, but does not justify putting a young plant into hot dry soil and assuming it will need little water.

Give it a good spring start

For young plants, spring after harder frosts is a good starting point. In unfrozen workable soil, the rootball can establish roots through the following growing season. Moisten it before planting, set it at its previous level and water in. The shop gives 30–40 cm spacing. Later underground spreading shoots still need monitoring. Beside small sensitive companions, I allow an edge that is easy to control. Give an outdoor container more root space when needed; the 9 cm pot is a starter container rather than a permanent garden home for a developed clump.

Keep it fresh without constant watering

During establishment and warm dry weeks, check the soil directly. When it has dried, water deliberately and remove surplus from saucers or outer pots. Do not treat this plant like drought-loving blue fescue. Conversely, repeated small waterings must not quietly accumulate in a container without drainage. Weak growth first calls for checking light, warmth and rootball moisture. During visible growth, moderate feeding in a container may be useful according to product instructions. Stronger feeding neither reliably produces red tips nor compensates for poor root condition.

Deciduous foliage means a spring tidy-up

Red Baron is deciduous. Foliage turning brown towards the end of the season does not automatically indicate insufficient watering. Remove dead leaves and old stems in spring without damaging new shoots. Wear gloves when working with the narrow foliage. Silvery flower panicles are possible under suitable warm conditions, but are not the focus of this cultivation. Protection may be needed in a cold winter, especially for a small outdoor container. I would not add water to a frozen wet rootball, but improve drainage and shelter instead.

Watch fully green reverting shoots

Underground shoots can widen the planting. Persistently fully green shoots with distinctly stronger, different growth also warrant checking. Remove them with their underground connection before they displace the coloured planting. A green leaf base or young green spring shoot alone is not proof of reversion. I watch later development to distinguish normal colouring from persistently different growth. This cultivar is described neither as guaranteed sterile nor as unable to spread. Careful monitoring keeps the red grass accent in its intended garden area.

One plant, several views

Good to know