Alternanthera Lilacina

Alternanthera Lilacina

Alternanthera Lilacina is a graceful and unusual stem plant producing deep lilac to purple undersides on its leaves contrasting with green to olive upper surfaces, and displayed on distinctive reddish stems that add warm structural color throughout the plant. The combination of red stems and lilac leaf undersides creates a multi-toned color effect that is unique among commonly available aquarium plants — warm and cool tones combined in a single plant.

Care tip: Alternanthera Lilacina grows best in moderate lighting with CO₂ recommended. Maintain temperatures of 72–82°F and pH 6.0–7.5. Regular liquid fertilization supports healthy growth and best coloration.

Growing to 10 to 16 inches, Alternanthera Lilacina is a natural midground to background stem plant that benefits from regular trimming to maintain bushy, multi-stemmed growth. The most vivid lilac color appears on well-lit new growth, where the purple undersides are most intense and contrast most sharply with the greener upper leaf surface. Grouping multiple stems creates a shimmering, layered color effect as both leaf surfaces catch the light.

This variety performs best under medium to high lighting that brings out the fullest expression of the lilac leaf color. CO₂ supplementation is recommended for compact growth and the best color display. Temperatures between 72 and 82°F and a pH of 6.0 to 7.5 suit this plant well. Regular liquid fertilization, particularly with formulas containing iron and anthocyanin-supporting micronutrients, maintains the richness of the lilac-purple pigmentation.

In the aquascape, Alternanthera Lilacina provides an unusual cool-warm color combination that creates subtle complexity when placed alongside purely red or purely green plants. The lilac undersides are most visible from the side and from angles that catch the underleaf — in a well-planted aquarium, the shifting color as leaves sway in the current creates a dynamic visual effect.

Alternanthera Lilacina is a sophisticated color plant for aquarists who appreciate the less common end of the Alternanthera color spectrum. Its multi-toned lilac and red character adds genuine botanical interest to any planted aquarium.

Care & Specifications